apply_filters( string $hook_name, mixed $value )

Calls the callback functions that have been added to a filter hook.

Description
Parameters
Return
Source
Related
- Uses
- Used By
Changelog
User Contributed Notes

Description Description

This function invokes all functions attached to filter hook $hook_name. It is possible to create new filter hooks by simply calling this function, specifying the name of the new hook using the $hook_name parameter.

The function also allows for multiple additional arguments to be passed to hooks.

Example usage:

// The filter callback function.
function example_callback( $string, $arg1, $arg2 ) {
    // (maybe) modify $string.
    return $string;
}
add_filter( 'example_filter', 'example_callback', 10, 3 );

/*
 * Apply the filters by calling the 'example_callback()' function
 * that's hooked onto `example_filter` above.
 *
 * - 'example_filter' is the filter hook.
 * - 'filter me' is the value being filtered.
 * - $arg1 and $arg2 are the additional arguments passed to the callback.
$value = apply_filters( 'example_filter', 'filter me', $arg1, $arg2 );

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Parameters Parameters

$hook_name: (string) (Required) The name of the filter hook.
$value: (mixed) (Required) The value to filter.
$args: (mixed) (Required) Additional parameters to pass to the callback functions.

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Return Return

(mixed) The filtered value after all hooked functions are applied to it.

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Source Source

File: wp-includes/plugin.php

function apply_filters( $hook_name, $value ) {
	global $wp_filter, $wp_current_filter;

	$args = func_get_args();

	// Do 'all' actions first.
	if ( isset( $wp_filter['all'] ) ) {
		$wp_current_filter[] = $hook_name;
		_wp_call_all_hook( $args );
	}

	if ( ! isset( $wp_filter[ $hook_name ] ) ) {
		if ( isset( $wp_filter['all'] ) ) {
			array_pop( $wp_current_filter );
		}

		return $value;
	}

	if ( ! isset( $wp_filter['all'] ) ) {
		$wp_current_filter[] = $hook_name;
	}

	// Don't pass the tag name to WP_Hook.
	array_shift( $args );

	$filtered = $wp_filter[ $hook_name ]->apply_filters( $value, $args );

	array_pop( $wp_current_filter );

	return $filtered;
}

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Uses Uses

Uses
Uses	Description
wp-includes/plugin.php: _wp_call_all_hook()	Calls the ‘all’ hook, which will process the functions hooked into it.

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Used By Used By

Used By
Used By	Description
wp-includes/widgets/class-wp-widget-block.php: WP_Widget_Block::widget()	Outputs the content for the current Block widget instance.
wp-includes/widgets/class-wp-widget-block.php: WP_Widget_Block::get_dynamic_classname()	Calculates the classname to use in the block widget’s container HTML.
wp-includes/block-patterns.php: _load_remote_block_patterns()	Register Core’s official patterns from wordpress.org/patterns.
wp-includes/rest-api/endpoints/class-wp-rest-widgets-controller.php: WP_REST_Widgets_Controller::prepare_item_for_response()	Prepares the widget for the REST response.
wp-includes/rest-api/endpoints/class-wp-rest-sidebars-controller.php: WP_REST_Sidebars_Controller::prepare_item_for_response()	Prepares a single sidebar output for response.
wp-includes/rest-api/endpoints/class-wp-rest-pattern-directory-controller.php: WP_REST_Pattern_Directory_Controller::prepare_item_for_response()	Prepare a raw pattern before it’s output in an API response.
wp-includes/rest-api/endpoints/class-wp-rest-pattern-directory-controller.php: WP_REST_Pattern_Directory_Controller::get_collection_params()	Retrieves the search params for the patterns collection.
wp-includes/rest-api/endpoints/class-wp-rest-widget-types-controller.php: WP_REST_Widget_Types_Controller::prepare_item_for_response()	Prepares a widget type object for serialization.
wp-includes/rest-api/endpoints/class-wp-rest-widget-types-controller.php: WP_REST_Widget_Types_Controller::encode_form_data()	An RPC-style endpoint which can be used by clients to turn user input in a widget admin form into an encoded instance object.
wp-includes/rest-api/endpoints/class-wp-rest-widget-types-controller.php: WP_REST_Widget_Types_Controller::get_widget_form()	Returns the output of WP_Widget::form() when called with the provided instance. Used by encode_form_data() to preview a widget’s form.
wp-includes/block-editor.php: get_legacy_widget_block_editor_settings()	Returns the block editor settings needed to use the Legacy Widget block which is not registered by default.
wp-includes/block-editor.php: get_block_editor_settings()	Returns the contextualized block editor settings settings for a selected editor context.
wp-includes/block-editor.php: block_editor_rest_api_preload()	Preloads common data used with the block editor by specifying an array of REST API paths that will be preloaded for a given block editor context.
wp-includes/block-editor.php: get_allowed_block_types()	Gets the list of allowed block types to use in the block editor.
wp-includes/block-editor.php: get_default_block_editor_settings()	Returns the default block editor settings.
wp-includes/widgets.php: wp_render_widget()	Calls the render callback of a widget and returns the output.
wp-includes/widgets.php: wp_use_widgets_block_editor()	Whether or not to use the block editor to manage widgets. Defaults to true unless a theme has removed support for widgets-block-editor or a plugin has filtered the return value of this function.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::set_is_enabled()	Set wp_xmlrpc_server::$is_enabled property.
wp-includes/script-loader.php: wp_maybe_inline_styles()	Allows small styles to be inlined.
wp-includes/script-loader.php: wp_should_load_separate_core_block_assets()	Checks whether separate styles should be loaded for core blocks on-render.
wp-includes/media.php: get_adjacent_image_link()	Gets the next or previous image link that has the same post parent.
wp-includes/robots-template.php: wp_robots()	Displays the robots meta tag as necessary.
wp-includes/script-loader.php: wp_get_inline_script_tag()	Wraps inline JavaScript in tag.
wp-includes/script-loader.php: wp_get_script_tag()	Formats loader tags.
wp-includes/functions.php: wp_get_update_https_url()	Gets the URL to learn more about updating the site to use HTTPS.
wp-includes/functions.php: wp_get_direct_update_https_url()	Gets the URL for directly updating the site to use HTTPS.
wp-includes/media.php: wp_iframe_tag_add_loading_attr()	Adds `loading` attribute to an `iframe` HTML tag.
wp-includes/https-detection.php: wp_update_https_detection_errors()	Runs a remote HTTPS request to detect whether HTTPS supported, and stores potential errors.
wp-includes/https-detection.php: wp_is_site_url_using_https()	Checks whether the current site’s URL where WordPress is stored is using HTTPS.
wp-includes/https-migration.php: wp_should_replace_insecure_home_url()	Checks whether WordPress should replace old HTTP URLs to the site with their HTTPS counterpart.
wp-includes/load.php: wp_is_site_protected_by_basic_auth()	Checks if this site is protected by HTTP Basic Auth.
wp-includes/ms-functions.php: wpmu_new_site_admin_notification()	Notifies the Multisite network administrator that a new site was created.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::get_max_batch_size()	Gets the maximum number of requests that can be included in a batch.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::serve_batch_request_v1()	Serves the batch/v1 request.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::respond_to_request()	Dispatches the request to the callback handler.
wp-includes/rest-api/endpoints/class-wp-rest-site-health-controller.php: WP_REST_Site_Health_Controller::validate_request_permission()	Validates if the current user can request this REST endpoint.
wp-includes/rest-api/endpoints/class-wp-rest-application-passwords-controller.php: WP_REST_Application_Passwords_Controller::prepare_item_for_database()	Prepares an application password for a create or update operation.
wp-includes/rest-api/endpoints/class-wp-rest-application-passwords-controller.php: WP_REST_Application_Passwords_Controller::prepare_item_for_response()	Prepares the application password for the REST response.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::check_is_comment_content_allowed()	If empty comments are not allowed, checks if the provided comment content is not empty.
wp-includes/rest-api/search/class-wp-rest-term-search-handler.php: WP_REST_Term_Search_Handler::search_items()	Searches the object type content for a given search request.
wp-includes/rest-api/search/class-wp-rest-post-format-search-handler.php: WP_REST_Post_Format_Search_Handler::search_items()	Searches the object type content for a given search request.
wp-includes/script-loader.php: wp_should_load_block_editor_scripts_and_styles()	Checks if the editor scripts and styles for all registered block types should be enqueued on the current screen.
wp-includes/user.php: wp_is_application_passwords_available()	Checks if Application Passwords is globally available.
wp-includes/user.php: wp_is_application_passwords_available_for_user()	Checks if Application Passwords is available for a specific user.
wp-includes/user.php: wp_authenticate_application_password()	Authenticates the user using an application password.
wp-admin/includes/template.php: get_media_states()	Retrieves an array of media states from an attachment.
wp-admin/includes/update.php: wp_is_auto_update_forced_for_item()	Checks whether auto-updates are forced for an item.
wp-admin/includes/class-wp-comments-list-table.php: WP_Comments_List_Table::comment_type_dropdown()	Displays a comment type drop-down for filtering on the Comments list table.
wp-admin/update-core.php: core_auto_updates_settings()	Display WordPress auto-updates settings.
wp-includes/formatting.php: esc_xml()	Escaping for XML blocks.
wp-includes/meta.php: get_metadata_default()	Retrieves default metadata value for the specified meta key and object.
wp-includes/meta.php: get_metadata_raw()	Retrieves raw metadata value for the specified object.
wp-includes/class-wp-block.php: WP_Block::render()	Generates the render output for the block.
wp-includes/load.php: wp_is_maintenance_mode()	Check if maintenance mode is enabled.
wp-includes/rest-api/endpoints/class-wp-rest-block-directory-controller.php: WP_REST_Block_Directory_Controller::get_collection_params()	Retrieves the search params for the blocks collection.
wp-includes/rest-api/endpoints/class-wp-rest-plugins-controller.php: WP_REST_Plugins_Controller::create_item()	Uploads a plugin and optionally activates it.
wp-includes/rest-api/endpoints/class-wp-rest-plugins-controller.php: WP_REST_Plugins_Controller::prepare_item_for_response()	Prepares the plugin for the REST response.
wp-includes/rest-api/endpoints/class-wp-rest-block-types-controller.php: WP_REST_Block_Types_Controller::prepare_item_for_response()	Prepares a block type object for serialization.
wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php: WP_REST_Attachments_Controller::edit_media_item()	Applies edits to a media item and creates a new attachment record.
wp-includes/comment.php: _wp_batch_update_comment_type()	Updates the comment type for a batch of comments.
wp-includes/media.php: wp_img_tag_add_loading_attr()	Adds `loading` attribute to an `img` HTML tag.
wp-includes/media.php: wp_img_tag_add_width_and_height_attr()	Adds `width` and `height` attributes to an `img` HTML tag.
wp-includes/media.php: wp_img_tag_add_srcset_and_sizes_attr()	Adds `srcset` and `sizes` attributes to an existing `img` HTML tag.
wp-includes/media.php: wp_image_src_get_dimensions()	Determines an image’s width and height dimensions based on the source file.
wp-includes/media.php: wp_lazy_loading_enabled()	Determines whether to add the `loading` attribute to the specified tag in the specified context.
wp-includes/media.php: wp_image_file_matches_image_meta()	Determines if the image meta data is for the image source file.
wp-includes/rest-api.php: rest_get_route_for_post()	Gets the REST API route for a post.
wp-includes/rest-api.php: rest_get_route_for_term()	Gets the REST API route for a term.
wp-includes/rest-api.php: rest_get_queried_resource_route()	Gets the REST route for the currently queried object.
wp-includes/class-wp-embed.php: WP_Embed::get_embed_handler_html()	Returns embed HTML for a given URL from embed handlers.
wp-includes/blocks.php: register_block_type_from_metadata()	Registers a block type from the metadata stored in the `block.json` file.
wp-includes/sitemaps.php: wp_sitemaps_get_max_urls()	Gets the maximum number of URLs for a sitemap.
wp-includes/sitemaps/class-wp-sitemaps-provider.php: WP_Sitemaps_Provider::get_sitemap_entries()	Lists sitemap pages exposed by this provider.
wp-includes/sitemaps/class-wp-sitemaps-renderer.php: WP_Sitemaps_Renderer::get_sitemap_index_stylesheet_url()	Gets the URL for the sitemap index stylesheet.
wp-includes/sitemaps/class-wp-sitemaps.php: WP_Sitemaps::sitemaps_enabled()	Determines whether sitemaps are enabled or not.
wp-includes/sitemaps/providers/class-wp-sitemaps-users.php: WP_Sitemaps_Users::get_url_list()	Gets a URL list for a user sitemap.
wp-includes/sitemaps/providers/class-wp-sitemaps-users.php: WP_Sitemaps_Users::get_max_num_pages()	Gets the max number of pages available for the object type.
wp-includes/sitemaps/providers/class-wp-sitemaps-users.php: WP_Sitemaps_Users::get_users_query_args()	Returns the query args for retrieving users to list in the sitemap.
wp-includes/sitemaps/class-wp-sitemaps-renderer.php: WP_Sitemaps_Renderer::get_sitemap_stylesheet_url()	Gets the URL for the sitemap stylesheet.
wp-includes/sitemaps/providers/class-wp-sitemaps-posts.php: WP_Sitemaps_Posts::get_posts_query_args()	Returns the query args for retrieving posts to list in the sitemap.
wp-includes/sitemaps/providers/class-wp-sitemaps-taxonomies.php: WP_Sitemaps_Taxonomies::get_object_subtypes()	Returns all public, registered taxonomies.
wp-includes/sitemaps/providers/class-wp-sitemaps-taxonomies.php: WP_Sitemaps_Taxonomies::get_url_list()	Gets a URL list for a taxonomy sitemap.
wp-includes/sitemaps/providers/class-wp-sitemaps-taxonomies.php: WP_Sitemaps_Taxonomies::get_max_num_pages()	Gets the max number of pages available for the object type.
wp-includes/sitemaps/providers/class-wp-sitemaps-taxonomies.php: WP_Sitemaps_Taxonomies::get_taxonomies_query_args()	Returns the query args for retrieving taxonomy terms to list in the sitemap.
wp-includes/sitemaps/class-wp-sitemaps-stylesheet.php: WP_Sitemaps_Stylesheet::get_stylesheet_css()	Gets the CSS to be included in sitemap XSL stylesheets.
wp-includes/sitemaps/providers/class-wp-sitemaps-posts.php: WP_Sitemaps_Posts::get_object_subtypes()	Returns the public post types, which excludes nav_items and similar types.
wp-includes/sitemaps/providers/class-wp-sitemaps-posts.php: WP_Sitemaps_Posts::get_url_list()	Gets a URL list for a post type sitemap.
wp-includes/sitemaps/providers/class-wp-sitemaps-posts.php: WP_Sitemaps_Posts::get_max_num_pages()	Gets the max number of pages available for the object type.
wp-includes/sitemaps/class-wp-sitemaps-registry.php: WP_Sitemaps_Registry::add_provider()	Adds a new sitemap provider.
wp-includes/sitemaps/class-wp-sitemaps-stylesheet.php: WP_Sitemaps_Stylesheet::get_sitemap_stylesheet()	Returns the escaped XSL for all sitemaps, except index.
wp-includes/sitemaps/class-wp-sitemaps-stylesheet.php: WP_Sitemaps_Stylesheet::get_sitemap_index_stylesheet()	Returns the escaped XSL for the index sitemaps.
wp-admin/includes/misc.php: wp_admin_viewport_meta()	Displays the viewport meta in the admin.
wp-admin/includes/file.php: wp_opcache_invalidate()	Attempts to clear the opcode cache for an individual PHP file.
wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::send_plugin_theme_email()	Sends an email upon the completion or failure of a plugin or theme background update.
wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::after_plugin_theme_update()	If we tried to perform plugin or theme updates, check if we should send an email.
wp-admin/includes/update.php: wp_is_auto_update_enabled_for_type()	Checks whether auto-updates are enabled.
wp-admin/includes/class-plugin-installer-skin.php: Plugin_Installer_Skin::do_overwrite()	Check if the plugin can be overwritten and output the HTML for overwriting a plugin on upload.
wp-admin/includes/class-theme-installer-skin.php: Theme_Installer_Skin::do_overwrite()	Check if the theme can be overwritten and output the HTML for overwriting a theme on upload.
wp-admin/includes/class-wp-ms-themes-list-table.php: WP_MS_Themes_List_Table::column_autoupdates()	Handles the auto-updates column output.
wp-admin/includes/ajax-actions.php: wp_ajax_toggle_auto_updates()	Ajax handler to enable or disable plugin and theme auto-updates.
wp-admin/themes.php: wp_theme_auto_update_setting_template()	Returns the JavaScript template used to display the auto-update setting for a theme.
wp-admin/includes/class-wp-site-health.php: WP_Site_Health::perform_test()	Run a Site Health test directly.
wp-includes/wp-db.php: wpdb::log_query()	Logs query data.
wp-includes/class-wp-image-editor.php: WP_Image_Editor::maybe_exif_rotate()	Check if a JPEG image has EXIF Orientation tag and rotate it if needed.
wp-includes/functions.php: wp_date()	Retrieves the date, in localized format.
wp-includes/post.php: wp_get_original_image_path()	Retrieves the path to an uploaded image file.
wp-includes/post.php: wp_get_original_image_url()	Retrieve the URL to an original attachment image.
wp-admin/includes/template.php: get_post_states()	Retrieves an array of post states from a post.
wp-admin/includes/image.php: wp_get_missing_image_subsizes()	Compare the existing image sub-sizes (as saved in the attachment meta) to the currently registered image sub-sizes, and return the difference.
wp-admin/includes/image.php: wp_update_image_subsizes()	If any of the currently registered image sub-sizes are missing, create them and update the image meta data.
wp-admin/includes/image.php: wp_create_image_subsizes()	Creates image sub-sizes, adds the new data to the image meta `sizes` array, and updates the image metadata.
wp-admin/includes/class-wp-privacy-data-removal-requests-list-table.php: WP_Privacy_Data_Removal_Requests_List_Table::column_email()	Actions column.
wp-admin/includes/class-wp-privacy-data-removal-requests-list-table.php: WP_Privacy_Data_Removal_Requests_List_Table::column_next_steps()	Next steps column.
wp-admin/includes/class-wp-ms-sites-list-table.php: WP_MS_Sites_List_Table::site_states()	Maybe output comma-separated site states.
wp-admin/includes/class-wp-privacy-data-export-requests-list-table.php: WP_Privacy_Data_Export_Requests_List_Table::column_email()	Actions column.
wp-admin/includes/class-wp-privacy-data-export-requests-list-table.php: WP_Privacy_Data_Export_Requests_List_Table::column_next_steps()	Displays the next steps column.
wp-includes/class-wp-recovery-mode.php: WP_Recovery_Mode::get_email_rate_limit()	Gets the rate limit between sending new recovery mode email links.
wp-includes/class-wp-recovery-mode.php: WP_Recovery_Mode::get_link_ttl()	Gets the number of seconds the recovery mode link is valid for.
wp-includes/load.php: wp_is_jsonp_request()	Checks whether current request is a JSONP request, or is expecting a JSONP response.
wp-includes/load.php: is_protected_endpoint()	Determines whether we are currently on an endpoint that should be protected against WSODs.
wp-includes/load.php: is_protected_ajax_action()	Determines whether we are currently handling an Ajax action that should be protected against WSODs.
wp-includes/feed.php: get_feed_build_date()	Get the UTC time of the most recently modified post from WP_Query.
wp-includes/class-wp-recovery-mode-email-service.php: WP_Recovery_Mode_Email_Service::send_recovery_mode_email()	Sends the Recovery Mode email to the site admin email address.
wp-includes/class-wp-recovery-mode-cookie-service.php: WP_Recovery_Mode_Cookie_Service::set_cookie()	Sets the recovery mode cookie.
wp-includes/class-wp-recovery-mode-cookie-service.php: WP_Recovery_Mode_Cookie_Service::validate_cookie()	Validates the recovery mode cookie.
wp-includes/class-wp-recovery-mode-link-service.php: WP_Recovery_Mode_Link_Service::get_recovery_mode_begin_url()	Gets a URL to begin recovery mode.
wp-includes/error-protection.php: wp_is_fatal_error_handler_enabled()	Checks whether the fatal error handler is enabled.
wp-includes/class-wp-fatal-error-handler.php: WP_Fatal_Error_Handler::display_default_error_template()	Displays the default PHP error template.
wp-includes/class-wp-fatal-error-handler.php: WP_Fatal_Error_Handler::should_handle_error()	Determines whether we are dealing with an error that WordPress should handle in order to protect the admin backend against WSODs.
wp-includes/embed.php: wp_filter_oembed_iframe_title_attribute()	Filters the given oEmbed HTML to make sure iframes have a title attribute.
wp-includes/class-wp-query.php: WP_Query::generate_postdata()	Generate post data.
wp-admin/includes/class-wp-debug-data.php: WP_Debug_Data::debug_data()	Static function for generating site debug data when required.
wp-admin/includes/file.php: wp_trusted_keys()	Retrieves the list of signing keys trusted by WordPress.
wp-admin/includes/class-wp-site-health.php: WP_Site_Health::get_test_rest_availability()	Test if the REST API is accessible.
wp-admin/includes/class-wp-site-health.php: WP_Site_Health::get_tests()	Return a set of tests that belong to the site status page.
wp-admin/includes/class-wp-site-health.php: WP_Site_Health::can_perform_loopback()	Run a loopback test on our site.
wp-admin/includes/class-wp-site-health.php: WP_Site_Health::get_test_php_extensions()	Test if required PHP modules are installed on the host.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::formats_dropdown()	Displays a formats drop-down for filtering items.
wp-admin/includes/class-wp-site-health-auto-updates.php: WP_Site_Health_Auto_Updates::test_accepts_dev_updates()	Check if the install is using a development branch and can use nightly packages.
wp-admin/includes/class-wp-site-health-auto-updates.php: WP_Site_Health_Auto_Updates::test_accepts_minor_updates()	Check if the site supports automatic minor updates.
wp-admin/includes/class-wp-site-health-auto-updates.php: WP_Site_Health_Auto_Updates::test_filters_automatic_updater_disabled()	Check if automatic updates are disabled by a filter.
wp-admin/includes/class-wp-site-health-auto-updates.php: WP_Site_Health_Auto_Updates::test_vcs_abspath()	Check if WordPress is controlled by a VCS (Git, Subversion etc).
wp-includes/functions.php: wp_get_direct_php_update_url()	Gets the URL for directly updating the PHP version the site is running on.
wp-includes/formatting.php: wp_targeted_link_rel_callback()	Callback to add `rel="noopener"` string to HTML A element.
wp-includes/load.php: wp_using_themes()	Determines whether the current request should use themes.
wp-includes/cron.php: wp_get_ready_cron_jobs()	Retrieve cron jobs ready to be run.
wp-includes/cron.php: wp_get_scheduled_event()	Retrieve a scheduled event.
wp-includes/ms-site.php: wp_initialize_site()	Runs the initialization routine for a given site.
wp-includes/ms-site.php: wp_uninitialize_site()	Runs the uninitialization routine for a given site.
wp-includes/ms-site.php: wp_is_site_initialized()	Checks whether a site is initialized.
wp-includes/ms-site.php: wp_prepare_site_data()	Prepares site data for insertion or update in the database.
wp-includes/functions.php: wp_get_update_php_url()	Gets the URL to learn more about updating the PHP version the site is running on.
wp-includes/link-template.php: is_avatar_comment_type()	Check if this comment type allows avatars to be retrieved.
wp-admin/includes/misc.php: wp_check_php_version()	Checks if the user needs to update PHP.
wp-admin/includes/schema.php: populate_network_meta()	Creates WordPress network meta and sets the default values.
wp-admin/includes/schema.php: populate_site_meta()	Creates WordPress site meta and sets the default values.
wp-includes/l10n.php: load_script_translations()	Loads the translation data for the given script handle and text domain.
wp-includes/kses.php: wp_kses_uri_attributes()	Returns an array of HTML attribute names whose value contains a URL.
wp-includes/rest-api/endpoints/class-wp-rest-themes-controller.php: WP_REST_Themes_Controller::prepare_item_for_response()	Prepares a single theme output for response.
wp-includes/rest-api/endpoints/class-wp-rest-themes-controller.php: WP_REST_Themes_Controller::get_collection_params()	Retrieves the search params for the themes collection.
wp-includes/rest-api/endpoints/class-wp-rest-autosaves-controller.php: WP_REST_Autosaves_Controller::prepare_item_for_response()	Prepares the revision for the REST response.
wp-includes/rest-api/endpoints/class-wp-rest-revisions-controller.php: WP_REST_Revisions_Controller::prepare_items_query()	Determines the allowed query_vars for a get_items() response and prepares them for WP_Query.
wp-includes/rest-api/search/class-wp-rest-post-search-handler.php: WP_REST_Post_Search_Handler::search_items()	Searches the object type content for a given search request.
wp-includes/l10n.php: load_script_textdomain()	Loads the script translated strings.
wp-includes/l10n.php: determine_locale()	Determine the current locale desired for the request.
wp-includes/script-loader.php: wp_get_script_polyfill()	Returns contents of an inline script used in appending polyfill scripts for browsers which fail the provided tests. The provided array is a mapping from a condition to verify feature support to its polyfill script handle.
wp-includes/script-loader.php: wp_tinymce_inline_scripts()	Adds inline scripts required for the TinyMCE in the block editor.
wp-includes/embed.php: get_oembed_response_data_for_url()	Retrieves the oEmbed response data for a given URL.
wp-includes/general-template.php: wp_get_code_editor_settings()	Generate and return code editor settings.
wp-includes/class-wp-block-type.php: WP_Block_Type::set_props()	Sets block type properties.
wp-includes/blocks.php: parse_blocks()	Parses blocks out of a content string.
wp-includes/blocks.php: excerpt_remove_blocks()	Parses blocks out of a content string, and renders those appropriate for the excerpt.
wp-includes/blocks.php: render_block()	Renders a single block into a HTML string.
wp-admin/includes/post.php: use_block_editor_for_post_type()	Return whether a post type is compatible with the block editor.
wp-admin/includes/post.php: the_block_editor_meta_boxes()	Renders the meta boxes forms.
wp-includes/block-editor.php: get_block_categories()	Returns all the categories for block types that will be shown in the block editor.
wp-admin/includes/post.php: use_block_editor_for_post()	Return whether the post can be edited in the block editor.
wp-includes/meta.php: get_object_subtype()	Returns the object subtype for a given object ID of a specific type.
wp-includes/comment.php: wp_comments_personal_data_eraser()	Erases personal data associated with an email address from the comments table.
wp-includes/functions.php: wp_privacy_delete_old_export_files()	Cleans up export files older than three days old.
wp-includes/functions.php: wp_privacy_exports_dir()	Returns the directory used to store personal data export files.
wp-includes/functions.php: wp_privacy_exports_url()	Returns the URL of the directory used to store personal data export files.
wp-includes/functions.php: wp_privacy_anonymize_data()	Return uniform “anonymous” data by type.
wp-includes/user.php: wp_validate_user_request_key()	Validate a user request by comparing the key with the request’s key.
wp-includes/user.php: _wp_privacy_send_request_confirmation_notification()	Notify the site administrator via email when a request is confirmed.
wp-includes/user.php: _wp_privacy_send_erasure_fulfillment_notification()	Notify the user when their erasure request is fulfilled.
wp-includes/user.php: _wp_privacy_account_request_confirmed_message()	Return request confirmation message HTML.
wp-includes/user.php: wp_user_request_action_description()	Get action description from the name and return a string.
wp-includes/user.php: wp_send_user_request()	Send a confirmation request email to confirm an action.
wp-includes/user.php: wp_user_personal_data_exporter()	Finds and exports personal data associated with an email address from the user and user_meta table.
wp-includes/link-template.php: get_the_privacy_policy_link()	Returns the privacy policy link with formatting, when applicable.
wp-includes/link-template.php: get_privacy_policy_url()	Retrieves the URL to the privacy policy page.
wp-admin/includes/privacy-tools.php: wp_privacy_process_personal_data_export_page()	Intercept personal data exporter page Ajax responses in order to assemble the personal data export file.
wp-admin/includes/privacy-tools.php: wp_privacy_send_personal_data_export_email()	Send an email to the user with a link to the personal data export file
wp-admin/includes/privacy-tools.php: wp_privacy_process_personal_data_erasure_page()	Mark erasure requests as completed after processing is finished.
wp-admin/includes/privacy-tools.php: _wp_personal_data_cleanup_requests()	Cleans up failed and expired requests before displaying the list table.
wp-admin/includes/ajax-actions.php: wp_ajax_wp_privacy_export_personal_data()	Ajax handler for exporting a user’s personal data.
wp-admin/includes/ajax-actions.php: wp_ajax_wp_privacy_erase_personal_data()	Ajax handler for erasing personal data.
wp-includes/class-wp-network.php: WP_Network::get_main_site_id()	Returns the main site ID for the network.
wp-includes/cron.php: wp_unschedule_hook()	Unschedules all events attached to the hook.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::handle_load_themes_request()	Load themes into the theme browsing/installation UI.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::trash_changeset_post()	Trash or delete a changeset post.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::branching()	Whether the changeset branching is allowed.
wp-includes/general-template.php: get_the_post_type_description()	Retrieves the description for a post type archive.
wp-includes/nav-menu.php: wp_get_nav_menu_name()	Returns the name of a navigation menu.
wp-includes/functions.php: wp_site_admin_email_change_notification()	Send an email to the old site admin email address when the site admin email address changes.
wp-includes/widgets/class-wp-widget-media-gallery.php: WP_Widget_Media_Gallery::get_instance_schema()	Get schema for properties of a widget instance (item).
wp-includes/widgets/class-wp-widget-custom-html.php: WP_Widget_Custom_HTML::widget()	Outputs the content for the current Custom HTML widget instance.
wp-includes/ms-functions.php: update_network_option_new_admin_email()	Send a confirmation request email when a change of network admin email address is attempted.
wp-includes/ms-functions.php: wp_network_admin_email_change_notification()	Send an email to the old network admin email address when the network admin email address changes.
wp-admin/includes/misc.php: wp_admin_headers()	Send a referrer policy header so referrers are not sent externally from administration screens.
wp-admin/includes/file.php: wp_get_plugin_file_editable_extensions()	Gets the list of file extensions that are editable in plugins.
wp-admin/includes/file.php: wp_get_theme_file_editable_extensions()	Gets the list of file extensions that are editable for a given theme.
wp-admin/includes/file.php: wp_edit_theme_plugin_file()	Attempts to edit a file for a theme or plugin.
wp-includes/load.php: wp_doing_cron()	Determines whether the current request is a WordPress cron request.
wp-includes/load.php: wp_is_file_mod_allowed()	Determines whether file modifications are allowed.
wp-includes/class-wp-oembed-controller.php: WP_oEmbed_Controller::get_proxy_item()	Callback for the proxy API endpoint.
wp-includes/widgets/class-wp-widget-media-audio.php: WP_Widget_Media_Audio::enqueue_preview_scripts()	Enqueue preview scripts.
wp-includes/widgets/class-wp-widget-media-video.php: WP_Widget_Media_Video::enqueue_preview_scripts()	Enqueue preview scripts.
wp-includes/widgets/class-wp-widget-media.php: WP_Widget_Media::get_instance_schema()	Get schema for properties of a widget instance (item).
wp-includes/widgets/class-wp-widget-media.php: WP_Widget_Media::widget()	Displays the widget on the front-end.
wp-includes/rest-api.php: rest_get_avatar_sizes()	Retrieves the pixel sizes for avatars.
wp-includes/rest-api.php: create_initial_rest_routes()	Registers default REST API routes.
wp-includes/load.php: wp_doing_ajax()	Determines whether the current request is a WordPress Ajax request.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::get_allowed_urls()	Get URLs allowed to be previewed.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::save_changeset_post()	Save the post for the loaded changeset.
wp-includes/theme.php: get_theme_starter_content()	Expands a theme’s starter content configuration using core-provided data.
wp-includes/theme.php: wp_update_custom_css_post()	Updates the `custom_css` post for a given theme.
wp-includes/theme.php: wp_get_custom_css()	Fetches the saved Custom CSS content for rendering.
wp-includes/theme.php: get_header_video_url()	Retrieves header video URL for custom header.
wp-includes/theme.php: get_header_video_settings()	Retrieves header video settings.
wp-includes/theme.php: is_header_video_active()	Checks whether the custom header video is eligible to show on the current page.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::check_username()	Check a username for the REST API.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::get_collection_params()	Retrieves the query params for collections.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::prepare_item_for_response()	Prepares a single user output for response.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::prepare_item_for_database()	Prepares a single user for creation or update.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::get_items()	Retrieves all users.
wp-includes/rest-api/endpoints/class-wp-rest-revisions-controller.php: WP_REST_Revisions_Controller::prepare_excerpt_response()	Checks the post excerpt and prepare it for single post output.
wp-includes/rest-api/endpoints/class-wp-rest-revisions-controller.php: WP_REST_Revisions_Controller::prepare_item_for_response()	Prepares the revision for the REST response.
wp-includes/rest-api/endpoints/class-wp-rest-revisions-controller.php: WP_REST_Revisions_Controller::get_items()	Gets a collection of revisions.
wp-includes/rest-api/endpoints/class-wp-rest-attachments-controller.php: WP_REST_Attachments_Controller::prepare_item_for_response()	Prepares a single attachment output for response.
wp-includes/rest-api/endpoints/class-wp-rest-post-statuses-controller.php: WP_REST_Post_Statuses_Controller::prepare_item_for_response()	Prepares a post status object for serialization.
wp-includes/rest-api/endpoints/class-wp-rest-settings-controller.php: WP_REST_Settings_Controller::get_item()	Retrieves the settings.
wp-includes/rest-api/endpoints/class-wp-rest-settings-controller.php: WP_REST_Settings_Controller::update_item()	Updates settings for the settings object.
wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php: WP_REST_Terms_Controller::prepare_item_for_response()	Prepares a single term output for response.
wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php: WP_REST_Terms_Controller::get_collection_params()	Retrieves the query params for collections.
wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php: WP_REST_Terms_Controller::prepare_item_for_database()	Prepares a single term for create or update.
wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php: WP_REST_Terms_Controller::get_items()	Retrieves terms associated with a taxonomy.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::get_item_schema()	Retrieves the post’s schema, conforming to JSON Schema.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::get_collection_params()	Retrieves the query params for the posts collection.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::prepare_item_for_response()	Prepares a single post output for response.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::prepare_items_query()	Determines the allowed query_vars for a get_items() response and prepares them for WP_Query.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::prepare_item_for_database()	Prepares a single post for create or update.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::delete_item()	Deletes a single post.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::get_items()	Retrieves a collection of posts.
wp-includes/rest-api/endpoints/class-wp-rest-taxonomies-controller.php: WP_REST_Taxonomies_Controller::prepare_item_for_response()	Prepares a taxonomy object for serialization.
wp-includes/rest-api/endpoints/class-wp-rest-post-types-controller.php: WP_REST_Post_Types_Controller::prepare_item_for_response()	Prepares a post type object for serialization.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::get_collection_params()	Retrieves the query params for collections.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::prepare_item_for_response()	Prepares a single comment output for response.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::prepare_item_for_database()	Prepares a single comment to be inserted into the database.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::delete_item()	Deletes a comment.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::create_item_permissions_check()	Checks if a given request has access to create a comment.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::create_item()	Creates a comment.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::get_items()	Retrieves a list of comment items.
wp-includes/class-wp-taxonomy.php: WP_Taxonomy::set_props()	Sets taxonomy properties.
wp-includes/formatting.php: sanitize_textarea_field()	Sanitizes a multiline string from user input or from the database.
wp-includes/comment.php: wp_check_comment_flood()	Checks whether comment flooding is occurring.
wp-includes/link-template.php: get_parent_theme_file_path()	Retrieves the path of a file in the parent theme.
wp-includes/link-template.php: get_parent_theme_file_uri()	Retrieves the URL of a file in the parent theme.
wp-includes/link-template.php: get_theme_file_path()	Retrieves the path of a file in the theme.
wp-includes/link-template.php: get_theme_file_uri()	Retrieves the URL of a file in the theme.
wp-includes/customize/class-wp-customize-custom-css-setting.php: WP_Customize_Custom_CSS_Setting::value()	Fetch the value of the setting. Will return the previewed value when `preview()` is called.
wp-includes/customize/class-wp-customize-nav-menu-item-setting.php: WP_Customize_Nav_Menu_Item_Setting::get_original_title()	Get original title.
wp-includes/class-wp-term-query.php: WP_Term_Query::get_terms()	Retrieves the query results.
wp-includes/class-wp-term-query.php: WP_Term_Query::parse_orderby()	Parse and sanitize ‘orderby’ keys passed to the term query.
wp-includes/class-wp-term-query.php: WP_Term_Query::parse_query()	Parse arguments passed to the term query with default query parameters.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::validate_setting_values()	Validates setting values.
wp-includes/class-wp-customize-setting.php: WP_Customize_Setting::validate()	Validates an input.
wp-includes/class-wp-network-query.php: WP_Network_Query::set_found_networks()	Populates found_networks and max_num_pages properties for the current query if the limit clause was used.
wp-includes/general-template.php: wp_resource_hints()	Prints resource hints to browsers for pre-fetching, pre-rendering and pre-connecting to web sites.
wp-includes/ms-network.php: get_network()	Retrieves network data given a network ID or network object.
wp-includes/ms-site.php: get_site()	Retrieves site data given a site ID or site object.
wp-includes/class-wp-post-type.php: WP_Post_Type::set_props()	Sets post type properties.
wp-includes/class-wp-site.php: WP_Site::get_details()	Retrieves the details for this site.
wp-includes/class-wp-comment-query.php: WP_Comment_Query::set_found_comments()	Populates found_comments and max_num_pages properties for the current query if the limit clause was used.
wp-includes/post-thumbnail-template.php: the_post_thumbnail_caption()	Displays the post thumbnail caption.
wp-includes/functions.php: wp_raise_memory_limit()	Attempts to raise the PHP memory limit for memory intensive processes.
wp-includes/functions.php: _deprecated_hook()	Marks a deprecated action or filter hook as deprecated and throws a notice.
wp-includes/functions.php: wp_get_ext_types()	Retrieves the list of common file extensions and their types.
wp-includes/link-template.php: wp_get_canonical_url()	Returns the canonical URL for a post.
wp-includes/post.php: wp_get_attachment_caption()	Retrieves the caption for an attachment.
wp-includes/class-wp-site-query.php: WP_Site_Query::get_site_ids()	Used internally to get a list of site IDs matching the query vars.
wp-includes/class-wp-site-query.php: WP_Site_Query::set_found_sites()	Populates found_sites and max_num_pages properties for the current query if the limit clause was used.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::categories_dropdown()	Displays a categories drop-down for filtering on the Posts list table.
wp-admin/includes/ms.php: network_edit_site_nav()	Outputs the HTML for a network’s “Edit Site” tabular interface.
wp-admin/includes/export.php: wxr_term_meta()	Output term meta XML tags for a given term object.
wp-includes/rest-api.php: rest_get_server()	Retrieves the current REST server instance.
wp-includes/embed.php: the_embed_site_title()	Prints the necessary markup for the site title in an embed template.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::get_nonces()	Get nonces for the Customizer.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::get_previewable_devices()	Returns a list of devices to allow previewing.
wp-includes/class-wp-image-editor-imagick.php: WP_Image_Editor_Imagick::thumbnail_image()	Efficiently resize the current image
wp-includes/general-template.php: get_custom_logo()	Returns a custom logo, linked to home unless the theme supports removing the link on the home page.
wp-includes/rest-api/class-wp-rest-request.php: WP_REST_Request::from_url()	Retrieves a WP_REST_Request object from a full URL.
wp-includes/rest-api/class-wp-rest-response.php: WP_REST_Response::get_curies()	Retrieves the CURIEs (compact URIs) used for relations.
wp-includes/user.php: _wp_get_current_user()	Retrieves the current user object.
wp-includes/user.php: wp_authenticate_email_password()	Authenticates a user using the email and password.
wp-includes/comment.php: wp_get_comment_fields_max_lengths()	Retrieves the maximum character lengths for the comment form fields.
wp-includes/customize/class-wp-customize-partial.php: WP_Customize_Partial::render()	Renders the template partial involving the associated settings.
wp-includes/customize/class-wp-customize-selective-refresh.php: WP_Customize_Selective_Refresh::add_dynamic_partials()	Registers dynamically-created partials.
wp-includes/customize/class-wp-customize-selective-refresh.php: WP_Customize_Selective_Refresh::handle_render_partials_request()	Handles the Ajax request to return the rendered partials for the requested placements.
wp-includes/customize/class-wp-customize-selective-refresh.php: WP_Customize_Selective_Refresh::add_partial()	Adds a partial.
wp-includes/class-wp-network.php: WP_Network::get_by_path()	Retrieve the closest matching network for a domain and path.
wp-includes/rest-api.php: get_rest_url()	Retrieves the URL to a REST endpoint on a site.
wp-includes/rest-api.php: rest_get_url_prefix()	Retrieves the URL prefix for any API resource.
wp-includes/embed.php: the_excerpt_embed()	Displays the post excerpt for the embed template.
wp-includes/embed.php: wp_oembed_add_discovery_links()	Adds oEmbed discovery links in the website .
wp-includes/embed.php: get_post_embed_url()	Retrieves the URL to embed a specific post in an iframe.
wp-includes/embed.php: get_oembed_endpoint_url()	Retrieves the oEmbed endpoint URL for a given permalink.
wp-includes/embed.php: get_post_embed_html()	Retrieves the embed code for a specific post.
wp-includes/embed.php: get_oembed_response_data()	Retrieves the oEmbed response data for a given post.
wp-includes/theme.php: get_header_image_tag()	Creates image tag markup for a custom header image.
wp-includes/author-template.php: get_the_author_posts_link()	Retrieves an HTML link to the author page of the current post’s author.
wp-includes/general-template.php: wp_get_document_title()	Returns document title for the current page.
wp-includes/media.php: wp_calculate_image_srcset()	A helper function to calculate the image sources to include in a ‘srcset’ attribute.
wp-includes/media.php: wp_calculate_image_sizes()	Creates a ‘sizes’ attribute value for an image.
wp-includes/rest-api/class-wp-rest-request.php: WP_REST_Request::get_parameter_order()	Retrieves the parameter priority order.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::get_data_for_routes()	Retrieves the publicly-visible data for routes.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::dispatch()	Matches the request to a callback and call it.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::get_index()	Retrieves the site index.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::get_namespace_index()	Retrieves the index for a namespace.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::envelope_response()	Wraps the response in an envelope.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::get_routes()	Retrieves the route map.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::serve_request()	Handles serving a REST API request.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::embed_links()	Embeds the links from the data into the request.
wp-includes/rest-api/class-wp-rest-server.php: WP_REST_Server::check_authentication()	Checks the authentication headers if supplied.
wp-includes/class-wp-oembed-controller.php: WP_oEmbed_Controller::get_item()	Callback for the embed API endpoint.
wp-includes/class-wp-oembed-controller.php: WP_oEmbed_Controller::register_routes()	Register the oEmbed REST API route.
wp-includes/user.php: get_password_reset_key()	Creates, stores, then returns a password reset key for user.
wp-includes/functions.php: wp_removable_query_args()	Returns an array of single-use query variable names that can be removed from a URL.
wp-includes/comment.php: wp_handle_comment_submission()	Handles the submission of a comment, usually posted to wp-comments-post.php via a comment form.
wp-includes/comment.php: wp_new_comment_notify_moderator()	Send a comment moderation notification to the comment moderator.
wp-includes/comment.php: wp_new_comment_notify_postauthor()	Send a notification of a new comment to the post author.
wp-includes/link-template.php: get_preview_post_link()	Retrieves the URL used for the post preview.
wp-includes/option.php: update_network_option()	Updates the value of a network option that was already added.
wp-includes/option.php: add_network_option()	Adds a new network option.
wp-includes/option.php: get_network_option()	Retrieves a network’s option value based on the option name.
wp-includes/ms-functions.php: get_subdirectory_reserved_names()	Retrieves a list of reserved site on a sub-directory Multisite installation.
wp-admin/includes/class-wp-screen.php: WP_Screen::render_view_mode()	Render the list table view mode preferences.
wp-admin/includes/class-wp-users-list-table.php: WP_Users_List_Table::get_role_list()	Returns an array of user roles for a given user object.
wp-signup.php: signup_get_available_languages()	Retrieves languages available during the site/user signup process.
wp-includes/customize/class-wp-customize-nav-menu-setting.php: WP_Customize_Nav_Menu_Setting::sanitize()	Sanitize an input.
wp-includes/customize/class-wp-customize-nav-menu-item-setting.php: WP_Customize_Nav_Menu_Item_Setting::value_as_wp_post_nav_menu_item()	Get the value emulated into a WP_Post and set up as a nav_menu_item.
wp-includes/customize/class-wp-customize-nav-menu-item-setting.php: WP_Customize_Nav_Menu_Item_Setting::sanitize()	Sanitize an input.
wp-includes/general-template.php: get_language_attributes()	Gets the language attributes for the ‘html’ tag.
wp-includes/general-template.php: wp_site_icon()	Display site icon meta tags.
wp-includes/general-template.php: get_site_icon_url()	Returns the Site Icon URL.
wp-includes/functions.php: get_main_network_id()	Get the main network ID.
wp-includes/functions.php: _deprecated_constructor()	Marks a constructor as deprecated and informs when it has been used.
wp-includes/formatting.php: format_for_editor()	Formats text for the editor.
wp-includes/comment.php: get_default_comment_status()	Gets the default comment status for a post type.
wp-includes/class-wp-customize-nav-menus.php: WP_Customize_Nav_Menus::search_available_items_query()	Performs post queries for available-item searching.
wp-includes/class-wp-customize-nav-menus.php: WP_Customize_Nav_Menus::available_item_types()	Return an array of all the available item types.
wp-includes/class-wp-customize-nav-menus.php: WP_Customize_Nav_Menus::load_available_items_query()	Performs the post_type and taxonomy queries for loading available menu items.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::handle_row_actions()	Generates and displays row action links.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::column_cb()	Handles the checkbox column output.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::column_title()	Handles the title column output.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::column_date()	Handles the post date column output.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::column_default()	Handles the default column output.
wp-admin/includes/class-wp-ms-themes-list-table.php: WP_MS_Themes_List_Table::column_name()	Handles the name column output.
wp-admin/includes/class-wp-ms-themes-list-table.php: WP_MS_Themes_List_Table::column_description()	Handles the description column output.
wp-admin/includes/class-wp-site-icon.php: WP_Site_Icon::insert_attachment()	Inserts an attachment.
wp-admin/includes/class-wp-site-icon.php: WP_Site_Icon::additional_sizes()	Adds additional sizes to be made when creating the site icon images.
wp-admin/includes/class-wp-site-icon.php: WP_Site_Icon::intermediate_image_sizes()	Adds Site Icon sizes to the array of image sizes on demand.
wp-admin/includes/class-wp-comments-list-table.php: WP_Comments_List_Table::handle_row_actions()	Generate and display row actions links.
wp-admin/includes/ajax-actions.php: wp_ajax_crop_image()	Ajax handler for cropping an image.
wp-admin/includes/class-wp-list-table.php: WP_List_Table::get_primary_column_name()	Gets the name of the primary column.
wp-admin/includes/class-wp-ms-sites-list-table.php: WP_MS_Sites_List_Table::handle_row_actions()	Generates and displays row action links.
wp-admin/includes/class-wp-terms-list-table.php: WP_Terms_List_Table::handle_row_actions()	Generates and displays row action links.
wp-admin/includes/class-wp-ms-users-list-table.php: WP_MS_Users_List_Table::handle_row_actions()	Generates and displays row action links.
wp-admin/includes/class-wp-ms-users-list-table.php: WP_MS_Users_List_Table::column_blogs()	Handles the sites column output.
wp-admin/includes/class-wp-ms-users-list-table.php: WP_MS_Users_List_Table::column_default()	Handles the default column output.
wp-admin/includes/upgrade.php: wp_should_upgrade_global_tables()	Determine if global tables should be upgraded.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::add_dynamic_settings()	Register any dynamically-created settings, such as those from $_POST[‘customized’] that have no corresponding setting created.
wp-includes/wp-db.php: wpdb::get_table_charset()	Retrieves the character set for the given table.
wp-includes/wp-db.php: wpdb::get_col_charset()	Retrieves the character set for the given column.
wp-includes/functions.php: wp_delete_file()	Delete a file
wp-includes/formatting.php: wp_staticize_emoji()	Convert emoji to a static img element.
wp-includes/formatting.php: wp_staticize_emoji_for_email()	Convert emoji in emails into static images.
wp-includes/link-template.php: get_avatar_data()	Retrieves default data about the avatar.
wp-includes/post-template.php: the_meta()	Display a list of post custom fields.
wp-admin/includes/post.php: wp_edit_attachments_query_vars()	Get the query variables for the current attachments request.
wp-includes/class-wp-meta-query.php: WP_Meta_Query::find_compatible_table_alias()	Identify an existing table alias that is compatible with the current query clause.
wp-includes/class-wp-customize-panel.php: WP_Customize_Panel::active()	Check whether panel is active to current Customizer preview.
wp-includes/general-template.php: get_the_archive_description()	Retrieves the description for an author, post type, or term archive.
wp-includes/general-template.php: get_the_archive_title()	Retrieve the archive title based on the queried object.
wp-includes/user.php: wp_get_password_hint()	Gets the text suggesting how to create strong passwords.
wp-includes/link-template.php: _navigation_markup()	Wraps passed links in navigational markup.
wp-includes/class-wp-customize-section.php: WP_Customize_Section::active()	Check whether section is active to current Customizer preview.
wp-includes/class-wp-session-tokens.php: WP_Session_Tokens::create()	Generates a session token and attaches session information to it.
wp-includes/class-wp-session-tokens.php: WP_Session_Tokens::destroy_all_for_all_users()	Destroys all sessions for all users.
wp-includes/class-wp-session-tokens.php: WP_Session_Tokens::get_instance()	Retrieves a session manager instance for a user.
wp-includes/class-wp-customize-control.php: WP_Customize_Control::active()	Check whether control is active to current Customizer preview.
wp-includes/theme.php: get_editor_stylesheets()	Retrieves any registered editor stylesheet URLs.
wp-includes/comment-template.php: get_comments_number_text()	Displays the language string for the number of comments the current post has.
wp-includes/media.php: attachment_url_to_postid()	Tries to convert an attachment URL into a post ID.
wp-includes/embed.php: wp_embed_handler_youtube()	YouTube iframe embed handler callback.
wp-includes/formatting.php: wp_spaces_regexp()	Returns the regexp for common whitespace characters.
wp-admin/includes/class-wp-media-list-table.php: WP_Media_List_Table::views()	Override parent views so we can use the filter bar display.
wp-admin/includes/file.php: _wp_handle_upload()	Handles PHP uploads in WordPress.
wp-admin/includes/class-wp-plugin-install-list-table.php: WP_Plugin_Install_List_Table::views()	Override parent views so we can use the filter bar display.
wp-admin/includes/translation-install.php: translations_api()	Retrieve translations from WordPress Translation API.
wp-includes/user.php: retrieve_password()	Handles sending a password retrieval email to a user.
wp-login.php: login_footer()	Outputs the footer for the login page.
wp-login.php: login_header()	Output the login page header.
wp-signup.php: signup_another_blog()	Allow returning users to sign up for another site
wp-signup.php: validate_another_blog_signup()	Validate a new site signup for an existing user.
wp-signup.php: signup_user()	Shows a form for a visitor to sign up for a new user account.
wp-signup.php: validate_user_signup()	Validate the new user signup
wp-signup.php: signup_blog()	Shows a form for a user or visitor to sign up for a new site.
wp-signup.php: validate_blog_signup()	Validate new site signup
wp-admin/includes/network.php: allow_subdirectory_install()	Allow subdirectory installation.
wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::run()	Kicks off the background update process, looping through all pending updates.
wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::send_email()	Sends an email upon the completion or failure of a background core update.
wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::send_debug_email()	Prepares and sends an email of a full log of background update results, useful for debugging and geekery.
wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::is_disabled()	Whether the entire automatic updater is disabled.
wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::is_vcs_checkout()	Check for version control checkouts.
wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::should_update()	Tests to see if we can and should update a specific item.
wp-admin/includes/class-wp-automatic-updater.php: WP_Automatic_Updater::send_core_update_notification_email()	Notifies an administrator of a core update.
wp-admin/includes/class-language-pack-upgrader.php: Language_Pack_Upgrader::async_upgrade()	Asynchronously upgrades language packs after other upgrades have been made.
wp-admin/includes/class-core-upgrader.php: Core_Upgrader::upgrade()	Upgrade WordPress core.
wp-admin/includes/class-core-upgrader.php: Core_Upgrader::should_update_to_version()	Determines if this WordPress Core version should update to an offered version or not.
wp-admin/includes/class-wp-upgrader.php: WP_Upgrader::download_package()	Download a package.
wp-admin/includes/class-wp-upgrader.php: WP_Upgrader::install_package()	Install a package.
wp-admin/includes/class-wp-upgrader.php: WP_Upgrader::run()	Run an upgrade/installation.
wp-admin/includes/class-wp-ms-users-list-table.php: WP_MS_Users_List_Table::prepare_items()
wp-admin/includes/class-wp-ms-users-list-table.php: WP_MS_Users_List_Table::get_columns()
wp-admin/includes/theme.php: wp_prepare_themes_for_js()	Prepare themes for JavaScript.
wp-admin/includes/class-wp-screen.php: WP_Screen::show_screen_options()
wp-admin/includes/class-wp-screen.php: WP_Screen::render_screen_options()	Render the screen options tab.
wp-admin/includes/class-wp-screen.php: WP_Screen::render_per_page_options()	Render the items per page option
wp-admin/includes/theme.php: themes_api()	Retrieves theme installer pages from the WordPress.org Themes API.
wp-admin/includes/class-wp-screen.php: WP_Screen::render_screen_meta()	Render the screen’s help section.
wp-admin/includes/class-wp-screen.php: WP_Screen::get()	Fetches a screen object.
wp-admin/includes/class-wp-plugins-list-table.php: WP_Plugins_List_Table::single_row()
wp-admin/includes/screen.php: get_column_headers()	Get the column headers for a screen
wp-admin/includes/screen.php: get_hidden_columns()	Get a list of hidden columns.
wp-admin/includes/screen.php: get_hidden_meta_boxes()	Gets an array of IDs of hidden meta boxes.
wp-admin/includes/class-wp-plugins-list-table.php: WP_Plugins_List_Table::prepare_items()
wp-admin/includes/export.php: export_wp()	Generates the WXR export file for download.
wp-admin/includes/deprecated.php: wp_create_thumbnail()	This was once used to create a thumbnail from an Image given a maximum side size.
wp-admin/includes/deprecated.php: get_editable_authors()	Gets author users who can edit posts.
wp-admin/includes/deprecated.php: get_others_unpublished_posts()	Retrieves editable posts from other users.
wp-admin/includes/class-theme-upgrader-skin.php: Theme_Upgrader_Skin::after()	Action to perform following a single theme update.
wp-admin/includes/class-language-pack-upgrader-skin.php: Language_Pack_Upgrader_Skin::bulk_footer()
wp-admin/includes/class-theme-installer-skin.php: Theme_Installer_Skin::after()	Action to perform following a single theme install.
wp-admin/includes/class-plugin-installer-skin.php: Plugin_Installer_Skin::after()	Action to perform following a plugin install.
wp-admin/includes/class-bulk-theme-upgrader-skin.php: Bulk_Theme_Upgrader_Skin::bulk_footer()
wp-admin/includes/class-bulk-plugin-upgrader-skin.php: Bulk_Plugin_Upgrader_Skin::bulk_footer()
wp-admin/includes/class-plugin-upgrader-skin.php: Plugin_Upgrader_Skin::after()	Action to perform following a single plugin update.
wp-admin/includes/class-wp-list-table.php: WP_List_Table::get_items_per_page()	Gets the number of items to display on a single page.
wp-admin/includes/class-wp-list-table.php: WP_List_Table::get_column_info()	Gets a list of all, hidden, and sortable columns, with filter applied.
wp-admin/includes/class-wp-list-table.php: WP_List_Table::views()	Displays the list of views available on this table.
wp-admin/includes/class-wp-list-table.php: WP_List_Table::bulk_actions()	Displays the bulk actions dropdown.
wp-admin/includes/class-wp-list-table.php: WP_List_Table::months_dropdown()	Displays a dropdown for filtering items in the list table by month.
wp-admin/includes/ms.php: mu_dropdown_languages()	Generates and displays a drop-down of available languages.
wp-admin/includes/ms.php: can_edit_network()	Whether or not we can edit this network from this page.
wp-admin/includes/ms.php: format_code_lang()	Returns the language for a language code.
wp-admin/includes/misc.php: update_option_new_admin_email()	Send a confirmation request email when a change of site admin email address is attempted.
wp-includes/user.php: send_confirmation_on_profile_email()	Send a confirmation request email when a change of user email address is attempted.
wp-admin/includes/image-edit.php: wp_save_image_file()	Saves image to file.
wp-admin/includes/image-edit.php: image_edit_apply_changes()	Performs group of changes on Editor specified.
wp-admin/includes/image-edit.php: wp_stream_image()	Streams image in WP_Image_Editor to browser.
wp-admin/includes/class-wp-ms-themes-list-table.php: WP_MS_Themes_List_Table::prepare_items()
wp-admin/includes/misc.php: insert_with_markers()	Inserts an array of strings into a file (.htaccess), placing it between BEGIN and END markers.
wp-admin/includes/misc.php: wp_doc_link_parse()
wp-admin/includes/misc.php: set_screen_options()	Saves option for number of rows when listing posts, pages, comments, etc.
wp-admin/includes/misc.php: got_mod_rewrite()	Returns whether the server is running Apache with the mod_rewrite module loaded.
wp-admin/includes/misc.php: got_url_rewrite()	Returns whether the server supports URL rewriting.
wp-admin/includes/taxonomy.php: get_terms_to_edit()	Get comma-separated list of terms available to edit for the given post ID.
wp-admin/includes/class-wp-theme-install-list-table.php: WP_Theme_Install_List_Table::prepare_items()
wp-admin/includes/class-wp-theme-install-list-table.php: WP_Theme_Install_List_Table::single_row()	Prints a theme from the WordPress.org API.
wp-admin/includes/update.php: update_right_now_message()	Displays WordPress version and active theme in the ‘At a Glance’ dashboard widget.
wp-admin/includes/image.php: wp_generate_attachment_metadata()	Generate attachment meta data and create image sub-sizes for images.
wp-admin/includes/image.php: wp_read_image_metadata()	Get extended image metadata, exif or iptc as available.
wp-admin/includes/image.php: file_is_displayable_image()	Validate that file is suitable for displaying within a web page.
wp-admin/includes/image.php: load_image_to_edit()	Load an image resource for editing.
wp-admin/includes/image.php: _load_image_to_edit_path()	Retrieve the path or URL of an attachment’s attached file.
wp-admin/includes/plugin-install.php: plugins_api()	Retrieves plugin installer pages from the WordPress.org Plugins API.
wp-admin/includes/dashboard.php: wp_dashboard_recent_posts()	Generates Publishing Soon and Recently Published sections.
wp-admin/includes/dashboard.php: wp_dashboard_primary()	‘WordPress Events and News’ dashboard widget.
wp-admin/includes/dashboard.php: wp_dashboard_browser_nag()	Displays the browser update nag.
wp-admin/includes/dashboard.php: wp_dashboard_right_now()	Dashboard widget that displays some basic stats about the site.
wp-admin/includes/dashboard.php: wp_dashboard_quick_press()	The Quick Draft widget display and creation of drafts.
wp-admin/includes/dashboard.php: wp_dashboard_recent_drafts()	Show recent drafts of the user on the dashboard.
wp-admin/includes/dashboard.php: _wp_dashboard_recent_comments_row()	Outputs a row for the Recent Comments widget.
wp-admin/includes/dashboard.php: wp_dashboard_setup()	Registers dashboard widgets.
wp-admin/includes/upgrade.php: dbDelta()	Modifies the database based on specified SQL statements.
wp-admin/includes/upgrade.php: wp_new_blog_notification()	Notifies the site admin that the installation of WordPress is complete.
wp-includes/option.php: register_setting()	Registers a setting and its data.
wp-admin/includes/plugin.php: get_plugin_files()	Get a list of a plugin’s files.
wp-admin/includes/class-wp-plugin-install-list-table.php: WP_Plugin_Install_List_Table::display_rows()
wp-admin/includes/user.php: edit_user()	Edit user settings based on contents of $_POST
wp-admin/includes/user.php: get_editable_roles()	Fetch a filtered list of user roles that the current user is allowed to edit.
wp-admin/includes/user.php: get_users_drafts()	Retrieve the user’s drafts.
wp-admin/includes/user.php: wp_delete_user()	Remove user and optionally reassign posts and links to another user.
wp-admin/includes/class-wp-plugin-install-list-table.php: WP_Plugin_Install_List_Table::prepare_items()
wp-admin/includes/class-walker-category-checklist.php: Walker_Category_Checklist::start_el()	Start the element output.
wp-admin/includes/template.php: iframe_header()	Generic Iframe header for use with Thickbox
wp-admin/includes/template.php: get_inline_data()	Adds hidden fields with the data for use in the inline editor for posts and pages.
wp-admin/includes/template.php: wp_comment_reply()	Outputs the in-line comment reply-to form in the Comments list table.
wp-admin/includes/template.php: meta_form()	Prints the form in the Custom Fields meta box.
wp-admin/includes/template.php: wp_import_upload_form()	Outputs the form used by the importers to accept the data to be imported
wp-admin/includes/class-wp-themes-list-table.php: WP_Themes_List_Table::display_rows()
wp-admin/includes/template.php: wp_terms_checklist()	Output an unordered list of checkbox input elements labelled with term names.
wp-admin/includes/template.php: wp_popular_terms_checklist()	Retrieve a list of the most popular terms from the specified taxonomy.
wp-admin/includes/template.php: wp_link_category_checklist()	Outputs a link category checklist element.
wp-admin/includes/class-wp-ms-sites-list-table.php: WP_MS_Sites_List_Table::prepare_items()	Prepares the list of sites for display.
wp-admin/includes/class-wp-ms-sites-list-table.php: WP_MS_Sites_List_Table::get_columns()
wp-admin/includes/class-wp-users-list-table.php: WP_Users_List_Table::single_row()	Generate HTML for a single row on the users.php admin panel.
wp-admin/includes/class-wp-users-list-table.php: WP_Users_List_Table::prepare_items()	Prepare the users list for display.
wp-admin/includes/media.php: wp_read_video_metadata()	Retrieve metadata from a video file’s ID3 tags
wp-admin/includes/media.php: media_upload_type_form()	Outputs the legacy media upload form for a given media type.
wp-admin/includes/media.php: media_upload_type_url_form()	Outputs the legacy media upload form for external media.
wp-admin/includes/media.php: media_upload_gallery_form()	Adds gallery form to upload iframe
wp-admin/includes/media.php: media_upload_library_form()	Outputs the legacy media upload form for the media library.
wp-admin/includes/media.php: wp_media_insert_url_form()	Creates the form for external url
wp-admin/includes/media.php: attachment_submitbox_metadata()	Displays non-editable attachment metadata in the publish meta box.
wp-admin/includes/media.php: get_attachment_fields_to_edit()	Retrieves the attachment fields to edit form fields.
wp-admin/includes/media.php: get_media_item()	Retrieve HTML form for modifying the image attachment.
wp-admin/includes/media.php: get_compat_media_markup()
wp-admin/includes/media.php: media_upload_form()	Outputs the legacy media upload form.
wp-admin/includes/media.php: media_upload_form_handler()	Handles form submissions for the legacy media uploader.
wp-admin/includes/media.php: wp_media_upload_handler()	Handles the process of uploading media.
wp-admin/includes/media.php: media_sideload_image()	Downloads an image from the specified URL, saves it as an attachment, and optionally attaches it to a post.
wp-admin/includes/media.php: image_size_input_fields()	Retrieve HTML for the size radio buttons with the specified one checked.
wp-admin/includes/media.php: the_media_upload_tabs()	Outputs the legacy media upload tabs UI.
wp-admin/includes/media.php: get_image_send_to_editor()	Retrieves the image HTML to send to the editor.
wp-admin/includes/media.php: image_add_caption()	Adds image shortcode with caption to editor.
wp-admin/includes/media.php: get_upload_iframe_src()
wp-admin/includes/media.php: media_upload_tabs()	Defines the default media upload tabs
wp-admin/includes/post.php: get_sample_permalink_html()	Returns the HTML of the sample permalink slug editor.
wp-admin/includes/post.php: _wp_post_thumbnail_html()	Returns HTML for the post thumbnail meta box.
wp-admin/includes/post.php: wp_check_post_lock()	Check to see if the post is currently being edited by another user.
wp-admin/includes/post.php: _admin_notice_post_locked()	Outputs the HTML for the notice to say that someone else is editing or has taken over editing of this post.
wp-admin/includes/post.php: wp_edit_posts_query()	Run the wp query to fetch the posts for listing on the edit posts page
wp-admin/includes/post.php: postbox_classes()	Returns the list of classes to be used by a meta box.
wp-admin/includes/post.php: get_sample_permalink()	Get a sample permalink based off of the post name.
wp-admin/includes/ajax-actions.php: wp_ajax_send_attachment_to_editor()	Ajax handler for sending an attachment to the editor.
wp-admin/includes/ajax-actions.php: wp_ajax_send_link_to_editor()	Ajax handler for sending a link to the editor.
wp-admin/includes/ajax-actions.php: wp_ajax_heartbeat()	Ajax handler for the Heartbeat API.
wp-admin/includes/ajax-actions.php: wp_ajax_query_themes()	Ajax handler for getting themes from themes_api().
wp-admin/includes/post.php: edit_post()	Update an existing post with values provided in $_POST.
wp-admin/includes/post.php: get_default_post_to_edit()	Default post information to use when populating the “Write Post” form.
wp-admin/includes/ajax-actions.php: wp_ajax_wp_remove_post_lock()	Ajax handler for removing a post lock.
wp-admin/includes/ajax-actions.php: wp_ajax_query_attachments()	Ajax handler for querying attachments.
wp-admin/includes/ajax-actions.php: wp_ajax_save_attachment_compat()	Ajax handler for saving backward compatible attachment attributes.
wp-admin/includes/ajax-actions.php: wp_ajax_add_menu_item()	Ajax handler for adding a menu item.
wp-admin/includes/ajax-actions.php: wp_ajax_menu_get_metabox()	Ajax handler for retrieving menu meta boxes.
wp-admin/includes/ajax-actions.php: wp_ajax_inline_save()	Ajax handler for Quick Edit saving a post from a list table.
wp-admin/includes/ajax-actions.php: wp_ajax_nopriv_heartbeat()	Ajax handler for the Heartbeat API in the no-privilege context.
wp-admin/includes/ajax-actions.php: wp_ajax_ajax_tag_search()	Ajax handler for tag search.
wp-admin/includes/ajax-actions.php: wp_ajax_autocomplete_user()	Ajax handler for user autocomplete.
wp-admin/includes/update-core.php: update_core()	Upgrades the core of WordPress.
wp-admin/includes/revision.php: wp_get_revision_ui_diff()	Get the revision UI diff.
wp-admin/includes/revision.php: wp_prepare_revisions_for_js()	Prepare revisions for JavaScript.
wp-admin/includes/meta-boxes.php: post_slug_meta_box()	Display slug form fields.
wp-admin/includes/meta-boxes.php: page_attributes_meta_box()	Display page attributes form fields.
wp-admin/includes/meta-boxes.php: post_categories_meta_box()	Display post categories form fields.
wp-admin/includes/menu.php: add_menu_classes()
wp-admin/includes/class-wp-media-list-table.php: WP_Media_List_Table::get_columns()
wp-admin/includes/class-wp-media-list-table.php: WP_Media_List_Table::_get_row_actions()
wp-admin/includes/class-wp-comments-list-table.php: WP_Comments_List_Table::column_author()
wp-admin/includes/class-wp-comments-list-table.php: WP_Comments_List_Table::get_views()
wp-admin/includes/class-wp-comments-list-table.php: WP_Comments_List_Table::column_comment()
wp-admin/includes/class-wp-comments-list-table.php: WP_Comments_List_Table::prepare_items()
wp-admin/includes/class-wp-comments-list-table.php: WP_Comments_List_Table::get_per_page()
wp-admin/includes/class-wp-terms-list-table.php: WP_Terms_List_Table::column_name()
wp-admin/includes/class-wp-terms-list-table.php: WP_Terms_List_Table::column_slug()
wp-admin/includes/class-wp-terms-list-table.php: WP_Terms_List_Table::column_default()
wp-admin/includes/class-wp-terms-list-table.php: WP_Terms_List_Table::prepare_items()
wp-admin/includes/class-walker-nav-menu-checklist.php: Walker_Nav_Menu_Checklist::start_el()	Start the element output.
wp-admin/includes/nav-menu.php: wp_nav_menu_post_type_meta_boxes()	Creates meta boxes for any post type menu item.
wp-admin/includes/nav-menu.php: wp_nav_menu_taxonomy_meta_boxes()	Creates meta boxes for any taxonomy menu item.
wp-admin/includes/nav-menu.php: wp_nav_menu_item_post_type_meta_box()	Displays a meta box for a post type menu item.
wp-admin/includes/nav-menu.php: wp_get_nav_menu_to_edit()	Returns the menu formatted to edit.
wp-admin/includes/file.php: get_filesystem_method()	Determines which method to use for reading, writing, modifying, or deleting files on the filesystem.
wp-admin/includes/file.php: request_filesystem_credentials()	Displays a form to the user to request for their FTP/SSH details in order to connect to the filesystem.
wp-admin/includes/file.php: download_url()	Downloads a URL to a local temporary file using the WordPress HTTP API.
wp-admin/includes/file.php: unzip_file()	Unzips a specified ZIP file to a location on the filesystem via the WordPress Filesystem Abstraction.
wp-admin/includes/file.php: WP_Filesystem()	Initializes and connects the WordPress Filesystem Abstraction classes.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::inline_edit()	Outputs the hidden row displayed when inline editing
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::get_columns()
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::prepare_items()
wp-admin/includes/comment.php: get_comment_to_edit()	Returns a WP_Comment object based on comment ID.
wp-admin/includes/class-custom-image-header.php: Custom_Image_Header::insert_attachment()	Insert an attachment and its metadata.
wp-admin/includes/class-custom-image-header.php: Custom_Image_Header::ajax_header_crop()	Gets attachment uploaded by Media Manager, crops it, then saves it as a new object. Returns JSON-encoded object details.
wp-admin/includes/class-custom-image-header.php: Custom_Image_Header::step_2()	Display second step of custom header image page.
wp-admin/includes/class-custom-image-header.php: Custom_Image_Header::step_3()	Display third step of custom header image page.
wp-admin/includes/post.php: redirect_post()	Redirect to previous page.
wp-admin/includes/class-custom-background.php: Custom_Background::wp_set_background_image()
wp-includes/class-wp-user.php: WP_User::has_cap()	Returns whether the user has the specified capability.
wp-includes/class-wp-role.php: WP_Role::has_cap()	Determines whether the role has the given capability.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::add_setting()	Add a customize setting.
wp-includes/capabilities.php: map_meta_cap()	Maps a capability to the primitive capabilities required of the given user to satisfy the capability being checked.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::save()	Handle customize_save WP Ajax request to save/update a changeset.
wp-includes/class.wp-styles.php: WP_Styles::all_deps()	Determines style dependencies.
wp-includes/class.wp-styles.php: WP_Styles::_css_href()	Generates an enqueued style’s fully-qualified URL.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::__construct()	Constructor.
wp-includes/class.wp-styles.php: WP_Styles::do_item()	Processes a style dependency.
wp-includes/cron.php: wp_schedule_event()	Schedules a recurring event.
wp-includes/cron.php: wp_reschedule_event()	Reschedules a recurring event.
wp-includes/cron.php: wp_unschedule_event()	Unschedule a previously scheduled event.
wp-includes/cron.php: wp_clear_scheduled_hook()	Unschedules all events attached to the hook with the specified arguments.
wp-includes/cron.php: spawn_cron()	Sends a request to run cron through HTTP request that doesn’t halt page loading.
wp-includes/cron.php: wp_get_schedule()	Retrieve the recurrence schedule for an event.
wp-includes/cron.php: wp_get_schedules()	Retrieve supported event recurrence schedules.
wp-includes/cron.php: wp_schedule_single_event()	Schedules an event to run only once.
wp-includes/class-walker-category.php: Walker_Category::start_el()	Starts the element output.
wp-includes/class-walker-category-dropdown.php: Walker_CategoryDropdown::start_el()	Starts the element output.
wp-includes/category-template.php: get_the_term_list()	Retrieves a post’s terms as a list with specified format.
wp-includes/category-template.php: the_terms()	Displays the terms for a post in a list.
wp-includes/category-template.php: wp_tag_cloud()	Displays a tag cloud.
wp-includes/category-template.php: wp_generate_tag_cloud()	Generates a tag cloud (heatmap) from provided data.
wp-includes/category-template.php: get_the_tags()	Retrieves the tags for a post.
wp-includes/category-template.php: get_the_tag_list()	Retrieves the tags for a post formatted as a string.
wp-includes/category-template.php: get_the_terms()	Retrieves the terms of the taxonomy that are attached to the post.
wp-includes/category-template.php: get_the_category()	Retrieves post categories.
wp-includes/category-template.php: get_the_category_list()	Retrieves category list for a post in either HTML list or custom format.
wp-includes/category-template.php: wp_dropdown_categories()	Displays or retrieves the HTML dropdown list of categories.
wp-includes/category-template.php: wp_list_categories()	Displays or retrieves the HTML list of categories.
wp-includes/theme.php: current_theme_supports()	Checks a theme’s support for a given feature.
wp-includes/theme.php: set_theme_mod()	Updates theme modification value for the current theme.
wp-includes/theme.php: get_theme_root()	Retrieves path to themes directory.
wp-includes/theme.php: get_theme_root_uri()	Retrieves URI for themes directory.
wp-includes/theme.php: validate_current_theme()	Checks that the current theme has ‘index.php’ and ‘style.css’ files.
wp-includes/theme.php: get_theme_mod()	Retrieves theme modification value for the current theme.
wp-includes/theme.php: get_stylesheet_directory()	Retrieves stylesheet directory path for current theme.
wp-includes/theme.php: get_stylesheet_directory_uri()	Retrieves stylesheet directory URI for current theme.
wp-includes/theme.php: get_stylesheet_uri()	Retrieves stylesheet URI for current theme.
wp-includes/theme.php: get_locale_stylesheet_uri()	Retrieves the localized stylesheet URI.
wp-includes/theme.php: get_template()	Retrieves name of the current theme.
wp-includes/theme.php: get_template_directory()	Retrieves template directory path for current theme.
wp-includes/theme.php: get_template_directory_uri()	Retrieves template directory URI for current theme.
wp-includes/theme.php: search_theme_directories()	Searches all registered theme directories for complete and valid themes.
wp-includes/l10n.php: get_available_languages()	Get all available languages based on the presence of *.mo files in a given directory.
wp-includes/theme.php: get_stylesheet()	Retrieves name of the current stylesheet.
wp-includes/l10n.php: load_textdomain()	Load a .mo file into the text domain $domain.
wp-includes/l10n.php: unload_textdomain()	Unload translations for a text domain.
wp-includes/l10n.php: load_plugin_textdomain()	Loads a plugin’s translated strings.
wp-includes/l10n.php: load_muplugin_textdomain()	Load the translated strings for a plugin residing in the mu-plugins directory.
wp-includes/l10n.php: load_theme_textdomain()	Load the theme’s translated strings.
wp-includes/l10n.php: translate()	Retrieve the translation of $text.
wp-includes/l10n.php: translate_with_gettext_context()	Retrieve the translation of $text in the context defined in $context.
wp-includes/l10n.php: _n()	Translates and retrieves the singular or plural form based on the supplied number.
wp-includes/l10n.php: _nx()	Translates and retrieves the singular or plural form based on the supplied number, with gettext context.
wp-includes/l10n.php: get_locale()	Retrieves the current locale.
wp-includes/formatting.php: sanitize_text_field()	Sanitizes a string from user input or from the database.
wp-includes/formatting.php: sanitize_mime_type()	Sanitize a mime type
wp-includes/formatting.php: sanitize_trackback_urls()	Sanitize space or carriage return separated URLs that are used to send trackbacks.
wp-includes/formatting.php: esc_textarea()	Escaping for textarea values.
wp-includes/formatting.php: tag_escape()	Escape an HTML tag name.
wp-includes/formatting.php: sanitize_option()	Sanitises various option values based on the nature of the option.
wp-includes/formatting.php: wp_parse_str()	Parses a string into variables to be stored in an array.
wp-includes/formatting.php: wp_sprintf()	WordPress implementation of PHP sprintf() with filters.
wp-includes/formatting.php: wp_sprintf_l()	Localize list items before the rest of the content.
wp-includes/deprecated.php: wp_htmledit_pre()	Formats text for the HTML editor.
wp-includes/formatting.php: esc_url()	Checks and cleans a URL.
wp-includes/formatting.php: esc_js()	Escape single quotes, htmlspecialchar ” &, and fix line endings.
wp-includes/formatting.php: esc_html()	Escaping for HTML blocks.
wp-includes/formatting.php: esc_attr()	Escaping for HTML attributes.
wp-includes/deprecated.php: wp_richedit_pre()	Formats text for the rich text editor.
wp-includes/formatting.php: sanitize_email()	Strips out all characters that are not allowable in an email.
wp-includes/formatting.php: human_time_diff()	Determines the difference between two timestamps.
wp-includes/formatting.php: wp_trim_excerpt()	Generates an excerpt from the content, if needed.
wp-includes/formatting.php: wp_trim_words()	Trims text to a certain number of words.
wp-includes/formatting.php: ent2ncr()	Converts named entities into numbered entities.
wp-includes/formatting.php: _make_url_clickable_cb()	Callback to convert URI match to HTML A element.
wp-includes/formatting.php: _make_web_ftp_clickable_cb()	Callback to convert URL match to HTML A element.
wp-includes/formatting.php: translate_smiley()	Convert one smiley code to the icon graphic file equivalent.
wp-includes/formatting.php: is_email()	Verifies that an email is valid.
wp-includes/formatting.php: sanitize_file_name()	Sanitizes a filename, replacing whitespace with dashes.
wp-includes/formatting.php: sanitize_user()	Sanitizes a username, stripping out unsafe characters.
wp-includes/formatting.php: sanitize_key()	Sanitizes a string key.
wp-includes/formatting.php: sanitize_title()	Sanitizes a string into a slug, which can be used in URLs or HTML attributes.
wp-includes/formatting.php: sanitize_html_class()	Sanitizes an HTML classname to ensure it only contains valid characters.
wp-includes/formatting.php: format_to_edit()	Acts on text which is about to be edited.
wp-includes/pluggable.php: get_avatar()	Retrieve the avatar `<img>` tag for a user, email address, MD5 hash, comment, or post.
wp-includes/formatting.php: wptexturize()	Replaces common plain text characters with formatted entities.
wp-includes/pluggable.php: wp_password_change_notification()	Notify the blog admin of a user changing password, normally via email.
wp-includes/pluggable.php: wp_new_user_notification()	Email login credentials to a newly-registered user.
wp-includes/pluggable.php: wp_nonce_tick()	Returns the time-dependent variable for nonce creation.
wp-includes/pluggable.php: wp_verify_nonce()	Verifies that a correct security nonce was used with time limit.
wp-includes/pluggable.php: wp_create_nonce()	Creates a cryptographic token tied to a specific action, user, user session, and window of time.
wp-includes/pluggable.php: wp_check_password()	Checks the plaintext password against the encrypted Password.
wp-includes/pluggable.php: wp_salt()	Returns a salt to add to hashes.
wp-includes/pluggable.php: wp_generate_password()	Generates a random password drawn from the defined set of characters.
wp-includes/pluggable.php: wp_redirect()	Redirects to another page.
wp-includes/pluggable.php: wp_safe_redirect()	Performs a safe (local) redirect, using wp_redirect().
wp-includes/pluggable.php: wp_validate_redirect()	Validates a URL for use in a redirect.
wp-includes/pluggable.php: wp_notify_postauthor()	Notify an author (and/or others) of a comment/trackback/pingback on a post.
wp-includes/pluggable.php: wp_notify_moderator()	Notifies the moderator of the site about a new comment that is awaiting approval.
wp-includes/pluggable.php: wp_set_auth_cookie()	Sets the authentication cookies based on user ID.
wp-includes/pluggable.php: wp_clear_auth_cookie()	Removes all of the cookies associated with authentication.
wp-includes/pluggable.php: auth_redirect()	Checks if a user is logged in, if not it redirects them to the login page.
wp-includes/pluggable.php: wp_authenticate()	Authenticate a user, confirming the login credentials are valid.
wp-includes/pluggable.php: wp_generate_auth_cookie()	Generates authentication cookie contents.
wp-includes/pluggable.php: wp_mail()	Sends an email, similar to PHP’s mail function.
wp-includes/general-template.php: the_search_query()	Displays the contents of the search query variable.
wp-includes/general-template.php: paginate_links()	Retrieves paginated links for archive post pages.
wp-includes/general-template.php: wp_admin_css_uri()	Displays the URL of a WordPress admin CSS file.
wp-includes/general-template.php: wp_admin_css()	Enqueues or directly prints a stylesheet link to the specified CSS file.
wp-includes/general-template.php: wp_generator()	Displays the XHTML generator that is generated on the wp_head hook.
wp-includes/general-template.php: the_generator()	Display the generator XML or Comment for RSS, ATOM, etc.
wp-includes/general-template.php: get_the_generator()	Creates the generator XML or Comment for RSS, ATOM, etc.
wp-includes/general-template.php: feed_links()	Display the links to the general feeds.
wp-includes/general-template.php: user_can_richedit()	Whether the user can access the visual editor.
wp-includes/general-template.php: wp_default_editor()	Find out which editor should be displayed by default.
wp-includes/general-template.php: get_search_query()	Retrieves the contents of the search WordPress query variable.
wp-includes/general-template.php: get_the_modified_date()	Retrieve the date on which the post was last modified.
wp-includes/general-template.php: the_time()	Display the time at which the post was written.
wp-includes/general-template.php: get_the_time()	Retrieve the time at which the post was written.
wp-includes/general-template.php: get_post_time()	Retrieve the time at which the post was written.
wp-includes/general-template.php: the_modified_time()	Display the time at which the post was last modified.
wp-includes/general-template.php: get_the_modified_time()	Retrieve the time at which the post was last modified.
wp-includes/general-template.php: get_post_modified_time()	Retrieve the time at which the post was last modified.
wp-includes/general-template.php: the_weekday()	Display the weekday on which the post was written.
wp-includes/general-template.php: the_weekday_date()	Display the weekday on which the post was written.
wp-includes/general-template.php: wp_get_archives()	Display archive links based on type and format.
wp-includes/general-template.php: get_calendar()	Display calendar with days that have posts as links.
wp-includes/general-template.php: get_archives_link()	Retrieve archive link content based on predefined or custom code.
wp-includes/general-template.php: the_date()	Display or Retrieve the date the current post was written (once per date)
wp-includes/general-template.php: get_the_date()	Retrieve the date on which the post was written.
wp-includes/general-template.php: the_modified_date()	Display the date on which the post was last modified.
wp-includes/general-template.php: get_bloginfo()	Retrieves information about the current site.
wp-includes/general-template.php: wp_title()	Display or retrieve page title for all areas of blog.
wp-includes/general-template.php: single_post_title()	Display or retrieve page title for post.
wp-includes/general-template.php: post_type_archive_title()	Display or retrieve title for a post type archive.
wp-includes/general-template.php: single_term_title()	Display or retrieve page title for taxonomy term archive.
wp-includes/general-template.php: wp_loginout()	Display the Log In/Out link.
wp-includes/general-template.php: wp_logout_url()	Retrieves the logout URL.
wp-includes/general-template.php: wp_login_url()	Retrieves the login URL.
wp-includes/general-template.php: wp_registration_url()	Returns the URL that allows the user to register on the site.
wp-includes/general-template.php: wp_login_form()	Provides a simple login form for use anywhere within WordPress.
wp-includes/general-template.php: wp_lostpassword_url()	Returns the URL that allows the user to retrieve the lost password
wp-includes/general-template.php: wp_register()	Display the Registration or Admin link.
wp-includes/general-template.php: get_search_form()	Display search form.
wp-includes/deprecated.php: get_theme_data()	Retrieve theme data from parsed theme file.
wp-includes/deprecated.php: get_boundary_post_rel_link()	Get boundary post relational link.
wp-includes/deprecated.php: get_index_rel_link()	Get site index relational link.
wp-includes/deprecated.php: get_parent_post_rel_link()	Get parent post relational link.
wp-includes/deprecated.php: get_attachment_icon_src()	Retrieve icon URL and Path.
wp-includes/deprecated.php: get_attachment_icon()	Retrieve HTML content of icon attachment image element.
wp-includes/deprecated.php: get_attachment_innerHTML()	Retrieve HTML content of image element.
wp-includes/deprecated.php: the_content_rss()	Display the post content for the feed.
wp-includes/deprecated.php: get_links_list()	Output entire list of links by category.
wp-includes/kses.php: safecss_filter_attr()	Filters an inline style attribute and removes disallowed rules.
wp-includes/deprecated.php: previous_post()	Prints a link to the previous post.
wp-includes/deprecated.php: next_post()	Prints link to the next post.
wp-includes/class-wp-theme.php: WP_Theme::get_allowed()	Returns array of stylesheet names of themes allowed on the site or network.
wp-includes/class-wp-theme.php: WP_Theme::get_allowed_on_network()	Returns array of stylesheet names of themes allowed on the network.
wp-includes/class-wp-theme.php: WP_Theme::get_allowed_on_site()	Returns array of stylesheet names of themes allowed on the site.
wp-includes/kses.php: wp_kses_allowed_html()	Returns an array of allowed HTML tags and attributes for a given context.
wp-includes/kses.php: wp_kses_hook()	You add any KSES hooks here.
wp-includes/class-wp-theme.php: WP_Theme::get_page_templates()	Returns the theme’s post templates for a given post type.
wp-includes/class-wp-theme.php: WP_Theme::scandir()	Scans a directory for files of a certain extension.
wp-includes/class-wp.php: WP::handle_404()	Set the Headers for 404, if nothing is found for requested URL.
wp-includes/class-wp-theme.php: WP_Theme::__construct()	Constructor for WP_Theme.
wp-includes/vars.php: wp_is_mobile()	Test if the current browser runs on a mobile device (smart phone, tablet, etc.)
wp-includes/class-wp.php: WP::parse_request()	Parses the request to find the correct WordPress query.
wp-includes/class-wp.php: WP::send_headers()	Sends additional HTTP headers for caching, content type, etc.
wp-includes/class-wp-query.php: WP_Query::get_posts()	Retrieves an array of posts based on query variables.
wp-includes/class-wp-query.php: WP_Query::parse_search()	Generates SQL for the WHERE clause based on passed search terms.
wp-includes/class-wp-query.php: WP_Query::get_search_stopwords()	Retrieve stopwords used when parsing search terms.
wp-includes/query.php: wp_old_slug_redirect()	Redirect old slugs to the correct permalink.
wp-includes/category.php: get_tags()	Retrieves all post tags.
wp-includes/class-wp-image-editor-imagick.php: WP_Image_Editor_Imagick::_save()
wp-includes/category.php: get_categories()	Retrieves a list of category objects.
wp-includes/load.php: wp_debug_mode()	Set PHP error reporting based on WordPress debug settings.
wp-includes/load.php: wp_start_object_cache()	Start the WordPress object cache.
wp-includes/class-wp-http-cookie.php: WP_Http_Cookie::getHeaderValue()	Convert cookie name and value back to header string.
wp-includes/class-wp-http-encoding.php: WP_Http_Encoding::accept_encoding()	What encoding types to accept and their priority values.
wp-includes/class-wp-http-curl.php: WP_Http_Curl::test()	Determines whether this class can be used for retrieving a URL.
wp-includes/class-wp-http-proxy.php: WP_HTTP_Proxy::send_through_proxy()	Determines whether the request should be sent through a proxy.
wp-includes/class-wp-http-curl.php: WP_Http_Curl::request()	Send a HTTP request to a URI using cURL extension.
wp-includes/class-wp-http-streams.php: WP_Http_Streams::request()	Send a HTTP request to a URI using PHP Streams.
wp-includes/class-wp-http-streams.php: WP_Http_Streams::test()	Determines whether this class can be used for retrieving a URL.
wp-includes/class-http.php: WP_Http::block_request()	Determines whether an HTTP API request to the given URL should be blocked.
wp-includes/class-http.php: WP_Http::_get_first_available_transport()	Tests which transports are capable of supporting the request.
wp-includes/class-http.php: WP_Http::_dispatch_request()	Dispatches a HTTP request to a supporting transport.
wp-includes/class-http.php: WP_Http::request()	Send an HTTP request to a URI.
wp-includes/functions.php: wp_allowed_protocols()	Retrieve a list of protocols to allow in HTML attributes.
wp-includes/functions.php: wp_checkdate()	Test if the supplied date is valid for the Gregorian calendar.
wp-includes/functions.php: wp_auth_check_load()	Load the auth check for monitoring whether the user is still logged in.
wp-includes/functions.php: wp_auth_check_html()	Output the HTML that shows the wp-login dialog when the user is no longer logged in.
wp-includes/functions.php: global_terms_enabled()	Determine whether global terms are enabled.
wp-includes/functions.php: get_file_data()	Retrieve metadata from a file.
wp-includes/functions.php: _deprecated_function()	Mark a function as deprecated and inform when it has been used.
wp-includes/functions.php: _deprecated_file()	Mark a file as deprecated and inform when it has been used.
wp-includes/functions.php: _deprecated_argument()	Mark a function argument as deprecated and inform when it has been used.
wp-includes/functions.php: _doing_it_wrong()	Mark something as being incorrectly called.
wp-includes/functions.php: iis7_supports_permalinks()	Check if IIS 7+ supports pretty permalinks.
wp-includes/functions.php: wp_maybe_load_widgets()	Determines if Widgets library should be loaded.
wp-includes/functions.php: smilies_init()	Convert smiley code to the icon graphic file equivalent.
wp-includes/functions.php: wp_check_filetype_and_ext()	Attempt to determine the real file type of a file.
wp-includes/functions.php: wp_get_mime_types()	Retrieve list of mime types and file extensions.
wp-includes/functions.php: get_allowed_mime_types()	Retrieve list of allowed mime types and file extensions.
wp-includes/functions.php: wp_upload_bits()	Create a file in the upload folder with given content.
wp-includes/functions.php: wp_die()	Kills WordPress execution and displays HTML page with an error message.
wp-includes/functions.php: do_robots()	Displays the default robots.txt file content.
wp-includes/functions.php: wp_upload_dir()	Returns an array containing the current upload directory’s path and URL.
wp-includes/functions.php: wp_unique_filename()	Get a filename that is sanitized and unique for the given directory.
wp-includes/functions.php: status_header()	Set HTTP status header.
wp-includes/functions.php: wp_get_nocache_headers()	Get the header information to prevent caching.
wp-includes/functions.php: date_i18n()	Retrieves the date in localized format, based on a sum of Unix timestamp and timezone offset in seconds.
wp-includes/functions.php: number_format_i18n()	Convert float number to format based on the locale.
wp-includes/functions.php: do_enclose()	Check content for video and audio links to add as enclosures.
wp-includes/widgets/class-wp-nav-menu-widget.php: WP_Nav_Menu_Widget::widget()	Outputs the content for the current Navigation Menu widget instance.
wp-includes/widgets/class-wp-widget-tag-cloud.php: WP_Widget_Tag_Cloud::widget()	Outputs the content for the current Tag Cloud widget instance.
wp-includes/widgets/class-wp-widget-rss.php: WP_Widget_RSS::widget()	Outputs the content for the current RSS widget instance.
wp-includes/widgets/class-wp-widget-recent-comments.php: WP_Widget_Recent_Comments::recent_comments_style()	Outputs the default styles for the Recent Comments widget.
wp-includes/widgets/class-wp-widget-recent-comments.php: WP_Widget_Recent_Comments::widget()	Outputs the content for the current Recent Comments widget instance.
wp-includes/widgets/class-wp-widget-recent-posts.php: WP_Widget_Recent_Posts::widget()	Outputs the content for the current Recent Posts widget instance.
wp-includes/widgets/class-wp-widget-text.php: WP_Widget_Text::widget()	Outputs the content for the current Text widget instance.
wp-includes/widgets/class-wp-widget-text.php: WP_Widget_Text::form()	Outputs the Text widget settings form.
wp-includes/widgets/class-wp-widget-calendar.php: WP_Widget_Calendar::widget()	Outputs the content for the current Calendar widget instance.
wp-includes/widgets/class-wp-widget-categories.php: WP_Widget_Categories::widget()	Outputs the content for the current Categories widget instance.
wp-includes/widgets/class-wp-widget-archives.php: WP_Widget_Archives::widget()	Outputs the content for the current Archives widget instance.
wp-includes/widgets/class-wp-widget-search.php: WP_Widget_Search::widget()	Outputs the content for the current Search widget instance.
wp-includes/widgets/class-wp-widget-meta.php: WP_Widget_Meta::widget()	Outputs the content for the current Meta widget instance.
wp-includes/widgets/class-wp-widget-pages.php: WP_Widget_Pages::widget()	Outputs the content for the current Pages widget instance.
wp-includes/widgets/class-wp-widget-links.php: WP_Widget_Links::widget()	Outputs the content for the current Links widget instance.
wp-includes/class-wp-embed.php: WP_Embed::cache_oembed()	Triggers a caching of all oEmbed results.
wp-includes/class-wp-embed.php: WP_Embed::maybe_make_link()	Conditionally makes a hyperlink based on an internal class variable.
wp-includes/class-wp-embed.php: WP_Embed::shortcode()	The do_shortcode() callback function.
wp-includes/class-wp-feed-cache-transient.php: WP_Feed_Cache_Transient::__construct()	Constructor.
wp-includes/taxonomy.php: _update_post_term_count()	Will update term count based on object types of the current taxonomy.
wp-includes/taxonomy.php: get_term_link()	Generate a permalink for a taxonomy term archive.
wp-includes/taxonomy.php: get_ancestors()	Get an array of ancestor IDs for a given object.
wp-includes/taxonomy.php: wp_unique_term_slug()	Will make slug unique, if it isn’t already.
wp-includes/taxonomy.php: wp_update_term()	Update term based on arguments provided.
wp-includes/taxonomy.php: wp_get_object_terms()	Retrieves the terms associated with the given object(s), in the supplied taxonomies.
wp-includes/taxonomy.php: wp_insert_term()	Add a new term to the database.
wp-includes/taxonomy.php: sanitize_term_field()	Cleanse the field value in the term based on the context.
wp-includes/taxonomy.php: get_terms()	Retrieves the terms in a given taxonomy or list of taxonomies.
wp-includes/taxonomy.php: create_initial_taxonomies()	Creates the initial taxonomies.
wp-includes/taxonomy.php: get_taxonomy_labels()	Builds an object with all taxonomy labels out of a taxonomy object.
wp-includes/taxonomy.php: get_term()	Get all Term data from database by Term ID.
wp-includes/link-template.php: self_admin_url()	Retrieves the URL to the admin area for either the current site or the network depending on context.
wp-includes/link-template.php: set_url_scheme()	Sets the scheme for a URL.
wp-includes/link-template.php: get_dashboard_url()	Retrieves the URL to the user’s dashboard.
wp-includes/link-template.php: get_edit_profile_url()	Retrieves the URL to the user’s profile editor.
wp-includes/link-template.php: wp_get_shortlink()	Returns a shortlink for a post, page, attachment, or site.
wp-includes/link-template.php: the_shortlink()	Displays the shortlink for a post.
wp-includes/link-template.php: get_admin_url()	Retrieves the URL to the admin area for a given site.
wp-includes/link-template.php: includes_url()	Retrieves the URL to the includes directory.
wp-includes/link-template.php: content_url()	Retrieves the URL to the content directory.
wp-includes/link-template.php: plugins_url()	Retrieves a URL within the plugins or mu-plugins directory.
wp-includes/link-template.php: network_site_url()	Retrieves the site URL for the current network.
wp-includes/link-template.php: network_home_url()	Retrieves the home URL for the current network.
wp-includes/link-template.php: network_admin_url()	Retrieves the URL to the admin area for the network.
wp-includes/link-template.php: user_admin_url()	Retrieves the URL to the admin area for the current user.
wp-includes/link-template.php: get_comments_pagenum_link()	Retrieves the comments page number link.
wp-includes/link-template.php: get_next_comments_link()	Retrieves the link to the next comments page.
wp-includes/link-template.php: get_previous_comments_link()	Retrieves the link to the previous comments page.
wp-includes/link-template.php: get_home_url()	Retrieves the URL for a given site where the front end is accessible.
wp-includes/link-template.php: get_site_url()	Retrieves the URL for a given site where WordPress application files (e.g. wp-blog-header.php or the wp-admin/ folder) are accessible.
wp-includes/deprecated.php: get_shortcut_link()	Retrieves the Press This bookmarklet link.
wp-includes/link-template.php: get_adjacent_post_link()	Retrieves the adjacent post link.
wp-includes/link-template.php: get_pagenum_link()	Retrieves the link for a page number.
wp-includes/link-template.php: get_next_posts_link()	Retrieves the next posts page link.
wp-includes/link-template.php: get_previous_posts_link()	Retrieves the previous posts page link.
wp-includes/link-template.php: get_edit_user_link()	Retrieves the edit user link.
wp-includes/link-template.php: get_adjacent_post()	Retrieves the adjacent post.
wp-includes/link-template.php: get_adjacent_post_rel_link()	Retrieves the adjacent post relational link.
wp-includes/link-template.php: get_search_comments_feed_link()	Retrieves the permalink for the search results comments feed.
wp-includes/link-template.php: get_post_type_archive_link()	Retrieves the permalink for a post type archive.
wp-includes/link-template.php: get_post_type_archive_feed_link()	Retrieves the permalink for a post type archive feed.
wp-includes/link-template.php: get_edit_post_link()	Retrieves the edit post link for post.
wp-includes/link-template.php: edit_post_link()	Displays the edit post link for post.
wp-includes/link-template.php: get_delete_post_link()	Retrieves the delete posts link for post.
wp-includes/link-template.php: get_edit_comment_link()	Retrieves the edit comment link.
wp-includes/link-template.php: edit_comment_link()	Displays the edit comment link with formatting.
wp-includes/link-template.php: get_edit_bookmark_link()	Displays the edit bookmark link.
wp-includes/link-template.php: edit_bookmark_link()	Displays the edit bookmark link anchor content.
wp-includes/link-template.php: get_term_feed_link()	Retrieves the feed link for a term.
wp-includes/link-template.php: get_edit_tag_link()	Retrieves the edit link for a tag.
wp-includes/link-template.php: edit_tag_link()	Displays or retrieves the edit link for a tag with formatting.
wp-includes/link-template.php: get_edit_term_link()	Retrieves the URL for editing a given term.
wp-includes/link-template.php: edit_term_link()	Displays or retrieves the edit term link with formatting.
wp-includes/link-template.php: get_search_link()	Retrieves the permalink for a search.
wp-includes/link-template.php: get_search_feed_link()	Retrieves the permalink for the search results feed.
wp-includes/link-template.php: get_month_link()	Retrieves the permalink for the month archives with year.
wp-includes/link-template.php: get_day_link()	Retrieves the permalink for the day archives with year and month.
wp-includes/link-template.php: the_feed_link()	Displays the permalink for the feed type.
wp-includes/link-template.php: get_feed_link()	Retrieves the permalink for the feed type.
wp-includes/link-template.php: get_post_comments_feed_link()	Retrieves the permalink for the post comments feed.
wp-includes/link-template.php: post_comments_feed_link()	Displays the comment feed link for a post.
wp-includes/link-template.php: get_author_feed_link()	Retrieves the feed link for a given author.
wp-includes/link-template.php: get_permalink()	Retrieves the full permalink for the current post or post ID.
wp-includes/link-template.php: get_post_permalink()	Retrieves the permalink for a post of a custom post type.
wp-includes/link-template.php: get_page_link()	Retrieves the permalink for the current page or page ID.
wp-includes/link-template.php: _get_page_link()	Retrieves the page permalink.
wp-includes/link-template.php: get_attachment_link()	Retrieves the permalink for an attachment.
wp-includes/link-template.php: get_year_link()	Retrieves the permalink for the year archives.
wp-includes/link-template.php: the_permalink()	Displays the permalink for the current post.
wp-includes/link-template.php: user_trailingslashit()	Retrieves a trailing-slashed string if the site is set for adding trailing slashes.
wp-includes/update.php: wp_version_check()	Check WordPress version against the newest version.
wp-includes/update.php: wp_update_plugins()	Checks for available updates to plugins based on the latest versions hosted on WordPress.org.
wp-includes/update.php: wp_update_themes()	Checks for available updates to themes based on the latest versions hosted on WordPress.org.
wp-includes/update.php: wp_get_update_data()	Collect counts and UI strings for available updates
wp-includes/http.php: is_allowed_http_origin()	Determines if the HTTP origin is an authorized one.
wp-includes/http.php: wp_http_validate_url()	Validate a URL for safe use in the HTTP API.
wp-includes/http.php: get_http_origin()	Get the HTTP Origin of the current request.
wp-includes/http.php: get_allowed_http_origins()	Retrieve list of allowed HTTP origins.
wp-includes/class-wp-date-query.php: WP_Date_Query::validate_column()	Validates a column name parameter.
wp-includes/class-wp-date-query.php: WP_Date_Query::get_sql()	Generate WHERE clause to be appended to a main query.
wp-includes/shortcodes.php: do_shortcode_tag()	Regular Expression callable for do_shortcode() for calling shortcode hook.
wp-includes/shortcodes.php: shortcode_atts()	Combine user attributes with known attributes and fill in defaults when needed.
wp-includes/shortcodes.php: strip_shortcodes()	Remove all shortcode tags from the given content.
wp-includes/class-wp-image-editor.php: WP_Image_Editor::set_quality()	Sets Image Compression quality on a 1-100% scale.
wp-includes/class-wp-image-editor.php: WP_Image_Editor::get_output_format()	Returns preferred mime-type and extension based on provided file’s extension and mime, or current file’s extension and mime.
wp-includes/class-wp-oembed.php: WP_oEmbed::__construct()	Constructor.
wp-includes/class-wp-oembed.php: WP_oEmbed::get_html()	The do-it-all function that takes a URL and attempts to return the HTML.
wp-includes/class-wp-oembed.php: WP_oEmbed::discover()	Attempts to discover link tags at the given URL for an oEmbed provider.
wp-includes/class-wp-oembed.php: WP_oEmbed::fetch()	Connects to a oEmbed provider and returns the result.
wp-includes/class-wp-oembed.php: WP_oEmbed::_fetch_with_format()	Fetches result from an oEmbed provider for a specific format and complete provider URL
wp-includes/class-wp-oembed.php: WP_oEmbed::data2html()	Converts a data object from WP_oEmbed::fetch() and returns the HTML.
wp-includes/admin-bar.php: is_admin_bar_showing()	Determines whether the admin bar should be showing.
wp-includes/admin-bar.php: _wp_admin_bar_init()	Instantiate the admin bar object and set it up as a global for access elsewhere.
wp-includes/feed.php: get_the_category_rss()	Retrieve all of the post categories, formatted for use in feeds.
wp-includes/feed.php: rss_enclosure()	Display the rss enclosure for the current post.
wp-includes/feed.php: atom_enclosure()	Display the atom enclosure for the current post.
wp-includes/feed.php: self_link()	Display the link for the currently displayed feed in a XSS safe way.
wp-includes/feed.php: feed_content_type()	Return the content type for specified feed type.
wp-includes/feed.php: fetch_feed()	Build SimplePie object based on RSS or Atom feed from URL.
wp-includes/feed.php: get_the_content_feed()	Retrieve the post content for feeds.
wp-includes/feed.php: the_excerpt_rss()	Display the post excerpt for the feed.
wp-includes/feed.php: the_permalink_rss()	Display the permalink to the post for use in feeds.
wp-includes/feed.php: comments_link_feed()	Outputs the link to the comments for the current post in an xml safe way
wp-includes/feed.php: comment_link()	Display the link to the comments.
wp-includes/feed.php: get_comment_author_rss()	Retrieve the current comment author for use in the feeds.
wp-includes/feed.php: comment_text_rss()	Display the current comment content for use in the feeds.
wp-includes/feed.php: get_bloginfo_rss()	RSS container for the bloginfo function.
wp-includes/feed.php: bloginfo_rss()	Display RSS container for the bloginfo function.
wp-includes/feed.php: get_default_feed()	Retrieve the default feed.
wp-includes/feed.php: get_wp_title_rss()	Retrieve the blog title for the feed title.
wp-includes/feed.php: wp_title_rss()	Display the blog title for display of the feed title.
wp-includes/feed.php: get_the_title_rss()	Retrieve the current post title for the feed.
wp-includes/class-wp-customize-setting.php: WP_Customize_Setting::value()	Fetch the value of the setting.
wp-includes/class-wp-customize-setting.php: WP_Customize_Setting::js_value()	Sanitize the setting’s value for use in JavaScript.
wp-includes/class-wp-customize-setting.php: WP_Customize_Setting::sanitize()	Sanitize an input.
wp-includes/option.php: set_site_transient()	Sets/updates the value of a site transient.
wp-includes/option.php: get_site_transient()	Retrieves the value of a site transient.
wp-includes/option.php: get_transient()	Retrieves the value of a transient.
wp-includes/option.php: set_transient()	Sets/updates the value of a transient.
wp-includes/option.php: wp_load_alloptions()	Loads and caches all autoloaded options, if available or all options.
wp-includes/option.php: update_option()	Updates the value of an option that was already added.
wp-includes/option.php: add_option()	Adds a new option.
wp-includes/option.php: get_option()	Retrieves an option value based on an option name.
wp-includes/class-wp-user-query.php: WP_User_Query::prepare_query()	Prepare the query variables.
wp-includes/class-wp-user-query.php: WP_User_Query::query()	Execute the query, with the current variables.
wp-includes/user.php: wp_update_user()	Update a user in the database.
wp-includes/user.php: wp_get_user_contact_methods()	Set up the user contact methods.
wp-includes/user.php: check_password_reset_key()	Retrieves a user row based on password reset key and login
wp-includes/user.php: register_new_user()	Handles registering a new user.
wp-includes/user.php: username_exists()	Determines whether the given username exists.
wp-includes/user.php: email_exists()	Determines whether the given email exists.
wp-includes/user.php: validate_username()	Checks whether a username is valid.
wp-includes/user.php: wp_insert_user()	Insert a user into the database.
wp-includes/user.php: get_blogs_of_user()	Get the sites a user belongs to.
wp-includes/user.php: count_users()	Count number of users who have each of the user roles.
wp-includes/user.php: wp_dropdown_users()	Create dropdown HTML content of users.
wp-includes/user.php: sanitize_user_field()	Sanitize user field based on context.
wp-includes/user.php: wp_signon()	Authenticates and logs a user in with ‘remember’ capability.
wp-includes/user.php: wp_authenticate_username_password()	Authenticate a user, confirming the username and password are valid.
wp-includes/user.php: wp_authenticate_spam_check()	For Multisite blogs, check if the authenticated user has been marked as a spammer, or if the user’s primary blog has been marked as spam.
wp-includes/user.php: count_user_posts()	Number of posts user has written.
wp-includes/user.php: get_user_option()	Retrieve user option that can be either per Site or per Network.
wp-includes/bookmark-template.php: wp_list_bookmarks()	Retrieve or echo all of the bookmarks.
wp-includes/template.php: get_query_template()	Retrieve path to a template
wp-includes/class-wp-image-editor-gd.php: WP_Image_Editor_GD::_save()
wp-includes/class-walker-nav-menu.php: Walker_Nav_Menu::start_el()	Starts the element output.
wp-includes/post-thumbnail-template.php: has_post_thumbnail()	Determines whether a post has an image attached.
wp-includes/post-thumbnail-template.php: get_the_post_thumbnail()	Retrieve the post thumbnail.
wp-includes/class-walker-page-dropdown.php: Walker_PageDropdown::start_el()	Starts the element output.
wp-includes/class-walker-nav-menu.php: Walker_Nav_Menu::start_lvl()	Starts the list before the elements are added.
wp-includes/nav-menu-template.php: wp_nav_menu()	Displays a navigation menu.
wp-includes/class-walker-page.php: Walker_Page::start_el()	Outputs the beginning of the current element in the tree.
wp-includes/post-template.php: wp_get_attachment_link()	Retrieve an attachment page link using an image or icon, if possible.
wp-includes/post-template.php: prepend_attachment()	Wrap attachment in paragraph tag before content.
wp-includes/post-template.php: get_the_password_form()	Retrieve protected post password form content.
wp-includes/post-template.php: wp_post_revision_title_expanded()	Retrieve formatted date timestamp of a revision (linked to that revisions’s page).
wp-includes/post-template.php: post_password_required()	Whether post requires password and correct password has been provided.
wp-includes/post-template.php: wp_link_pages()	The formatted output of a list of pages.
wp-includes/post-template.php: wp_dropdown_pages()	Retrieve or display a list of pages as a dropdown (select list).
wp-includes/post-template.php: wp_list_pages()	Retrieve or display a list of pages (or hierarchical post type items) in list (li) format.
wp-includes/post-template.php: wp_page_menu()	Displays or retrieves a list of pages with an optional home link.
wp-includes/post-template.php: get_the_guid()	Retrieve the Post Global Unique Identifier (guid).
wp-includes/post-template.php: the_content()	Display the post content.
wp-includes/post-template.php: get_the_content()	Retrieve the post content.
wp-includes/post-template.php: the_excerpt()	Display the post excerpt.
wp-includes/post-template.php: get_the_excerpt()	Retrieves the post excerpt.
wp-includes/post-template.php: get_post_class()	Retrieves an array of the class names for the post container element.
wp-includes/post-template.php: get_body_class()	Retrieves an array of the class names for the body element.
wp-includes/post-template.php: get_the_title()	Retrieve post title.
wp-includes/post-template.php: the_guid()	Display the Post Global Unique Identifier (guid).
wp-includes/media.php: get_media_embedded_in_content()	Check the content HTML for a audio, video, object, embed, or iframe tags.
wp-includes/media.php: get_post_galleries()	Retrieves galleries from the passed post’s content.
wp-includes/media.php: get_post_gallery()	Check a specified post’s content for gallery and, if present, return the first
wp-includes/media.php: wp_max_upload_size()	Determines the maximum upload size allowed in php.ini.
wp-includes/media.php: wp_plupload_default_settings()	Prints default Plupload arguments.
wp-includes/media.php: wp_prepare_attachment_for_js()	Prepares an attachment post object for JS, where it is expected to be JSON-encoded and fit into an Attachment model.
wp-includes/media.php: wp_enqueue_media()	Enqueues all scripts, styles, settings, and templates necessary to use all media JS APIs.
wp-includes/media.php: get_attached_media()	Retrieves media attached to the passed post.
wp-includes/embed.php: wp_embed_defaults()	Creates default array of embed parameters.
wp-includes/embed.php: wp_maybe_load_embeds()	Determines if default embed handlers should be loaded.
wp-includes/embed.php: wp_embed_handler_audio()	Audio embed handler callback.
wp-includes/embed.php: wp_embed_handler_video()	Video embed handler callback.
wp-includes/media.php: wp_get_video_extensions()	Returns a filtered list of supported video formats.
wp-includes/media.php: wp_video_shortcode()	Builds the Video shortcode output.
wp-includes/media.php: gallery_shortcode()	Builds the Gallery shortcode output.
wp-includes/media.php: wp_playlist_shortcode()	Builds the Playlist shortcode output.
wp-includes/media.php: wp_mediaelement_fallback()	Provides a No-JS Flash fallback as a last resort for audio / video.
wp-includes/media.php: wp_get_audio_extensions()	Returns a filtered list of supported audio formats.
wp-includes/media.php: wp_get_attachment_id3_keys()	Returns useful keys to use to lookup data from an attachment’s stored metadata.
wp-includes/media.php: wp_audio_shortcode()	Builds the Audio shortcode output.
wp-includes/media.php: get_image_tag()	Gets an img tag for an image attachment, scaling it down if requested.
wp-includes/media.php: wp_constrain_dimensions()	Calculates the new dimensions for a down-sampled image.
wp-includes/media.php: image_resize_dimensions()	Retrieves calculated resize dimensions for use in WP_Image_Editor.
wp-includes/media.php: image_get_intermediate_size()	Retrieves the image’s intermediate size (resized) path, width, and height.
wp-includes/media.php: get_intermediate_image_sizes()	Gets the available intermediate image size names.
wp-includes/media.php: wp_get_attachment_image_src()	Retrieves an image to represent an attachment.
wp-includes/media.php: wp_get_attachment_image()	Get an HTML img element representing an image attachment.
wp-includes/media.php: img_caption_shortcode()	Builds the Caption shortcode output.
wp-includes/media.php: image_downsize()	Scale an image to fit a particular size (such as ‘thumb’ or ‘medium’).
wp-includes/media.php: image_constrain_size_for_editor()	Scale down the default size of an image.
wp-includes/post.php: wp_mime_type_icon()	Retrieve the icon for a MIME type or attachment.
wp-includes/post.php: get_lastpostdate()	Retrieves the most recent time that a post on the site was published.
wp-includes/post.php: get_lastpostmodified()	Get the most recent time that a post on the site was modified.
wp-includes/post.php: wp_delete_attachment()	Trash or delete an attachment.
wp-includes/post.php: wp_get_attachment_metadata()	Retrieves attachment metadata for attachment ID.
wp-includes/post.php: wp_update_attachment_metadata()	Updates metadata for an attachment.
wp-includes/post.php: wp_get_attachment_url()	Retrieve the URL for an attachment.
wp-includes/post.php: wp_get_attachment_thumb_file()	Retrieve thumbnail for an attachment.
wp-includes/post.php: wp_get_attachment_thumb_url()	Retrieve URL for an attachment thumbnail.
wp-includes/post.php: get_enclosed()	Retrieve enclosures already enclosed for a post.
wp-includes/post.php: get_pung()	Retrieve URLs already pinged for a post.
wp-includes/post.php: get_to_ping()	Retrieve URLs that need to be pinged.
wp-includes/post.php: get_page_uri()	Build the URI path for a page.
wp-includes/post.php: get_pages()	Retrieve an array of pages (or hierarchical post type items).
wp-includes/post.php: wp_unique_post_slug()	Computes a unique slug for the post, when given the desired slug and some post details.
wp-includes/post.php: wp_set_post_categories()	Set categories for a post.
wp-includes/post.php: add_ping()	Add a URL to those already pinged.
wp-includes/post.php: wp_insert_post()	Insert or update a post.
wp-includes/post.php: get_post_mime_types()	Get default post mime types.
wp-includes/post.php: wp_delete_post()	Trash or delete a post or page.
wp-includes/post.php: wp_trash_post()	Move a post or page to the Trash
wp-includes/post.php: wp_untrash_post()	Restores a post from the Trash.
wp-includes/post.php: is_sticky()	Determines whether a post is sticky.
wp-includes/post.php: sanitize_post_field()	Sanitizes a post field based on context.
wp-includes/post.php: wp_count_posts()	Count number of posts of a post type and if user has permissions to view.
wp-includes/post.php: wp_count_attachments()	Count number of attachments for the mime type(s).
wp-includes/post.php: get_post_type_labels()	Builds an object with all post type labels out of a post type object.
wp-includes/post.php: get_post_status()	Retrieve the post status based on the post ID.
wp-includes/post.php: get_attached_file()	Retrieve attached file path based on attachment ID.
wp-includes/post.php: update_attached_file()	Update attachment file path based on attachment ID.
wp-includes/post.php: _wp_relative_upload_path()	Return relative path to an uploaded file.
wp-includes/class-wp-rewrite.php: WP_Rewrite::mod_rewrite_rules()	Retrieves mod_rewrite-formatted rewrite rules to write to .htaccess.
wp-includes/class-wp-rewrite.php: WP_Rewrite::iis7_url_rewrite_rules()	Retrieves IIS7 URL Rewrite formatted rewrite rules to write to web.config file.
wp-includes/class-wp-rewrite.php: WP_Rewrite::flush_rules()	Removes rewrite rules and then recreate rewrite rules.
wp-includes/class-wp-rewrite.php: WP_Rewrite::rewrite_rules()	Constructs rewrite matches and queries from permalink structure.
wp-includes/rewrite.php: url_to_postid()	Examine a URL and try to determine the post ID it represents.
wp-includes/canonical.php: redirect_canonical()	Redirects incoming links to the proper URL based on the site url.
wp-includes/canonical.php: redirect_guess_404_permalink()	Attempts to guess the correct URL for a 404 request based on query vars.
wp-includes/revision.php: wp_revisions_to_keep()	Determine how many revisions to retain for a given post.
wp-includes/ms-functions.php: get_space_used()	Returns the space used by the current site.
wp-includes/ms-functions.php: get_space_allowed()	Returns the upload quota for the current blog.
wp-includes/ms-functions.php: wp_is_large_network()	Whether or not we have a large network.
wp-includes/revision.php: _wp_post_revision_fields()	Determines which fields of posts are to be saved in revisions.
wp-includes/revision.php: wp_save_post_revision()	Creates a revision for the current version of a post.
wp-includes/ms-functions.php: wp_maybe_update_network_site_counts()	Update the count of sites for the current network.
wp-includes/ms-functions.php: wp_maybe_update_network_user_counts()	Update the network-wide users count.
wp-includes/functions.php: recurse_dirsize()	Get the size of a directory recursively.
wp-includes/ms-functions.php: wpmu_welcome_user_notification()	Notify a user that their account activation has been successful.
wp-includes/ms-functions.php: maybe_redirect_404()	Correct 404 redirects when NOBLOGREDIRECT is defined.
wp-includes/ms-functions.php: newblog_notify_siteadmin()	Notifies the network admin that a new site has been activated.
wp-includes/ms-functions.php: newuser_notify_siteadmin()	Notifies the network admin that a new user has been activated.
wp-includes/ms-functions.php: domain_exists()	Checks whether a site name is already taken.
wp-includes/ms-functions.php: wpmu_welcome_notification()	Notifies the site administrator that their site activation was successful.
wp-includes/ms-functions.php: is_email_address_unsafe()	Checks an email address against a list of banned domains.
wp-includes/ms-functions.php: wpmu_validate_user_signup()	Sanitize and validate data required for a user sign-up.
wp-includes/ms-functions.php: wpmu_validate_blog_signup()	Processes new site registrations.
wp-includes/ms-functions.php: wpmu_signup_blog()	Record site signup information for future activation.
wp-includes/ms-functions.php: wpmu_signup_user()	Record user signup information for future activation.
wp-includes/ms-functions.php: wpmu_signup_blog_notification()	Send a confirmation request email to a user when they sign up for a new site. The new site will not become active until the confirmation link is clicked.
wp-includes/ms-functions.php: wpmu_signup_user_notification()	Send a confirmation request email to a user when they sign up for a new user account (without signing up for a site at the same time). The user account will not become active until the confirmation link is clicked.
wp-includes/bookmark.php: sanitize_bookmark_field()	Sanitizes a bookmark field.
wp-includes/ms-functions.php: add_user_to_blog()	Adds a user to a blog, along with specifying the user’s role.
wp-includes/class-wp-http-ixr-client.php: WP_HTTP_IXR_Client::query()
wp-includes/ms-load.php: get_site_by_path()	Retrieves the closest matching site object by its domain and path.
wp-includes/bookmark.php: get_bookmarks()	Retrieves the list of bookmarks
wp-includes/ms-load.php: ms_site_check()	Checks status of current blog.
wp-includes/ms-deprecated.php: graceful_fail()	Deprecated functionality to gracefully fail.
wp-includes/class.wp-scripts.php: WP_Scripts::do_item()	Processes a script dependency.
wp-includes/class.wp-scripts.php: WP_Scripts::all_deps()	Determines script dependencies.
wp-includes/author-template.php: get_the_author_meta()	Retrieves the requested data of the author of the current post.
wp-includes/author-template.php: the_author_meta()	Outputs the field from the user’s DB object. Defaults to current post’s author.
wp-includes/author-template.php: get_author_posts_url()	Retrieve the URL to the author page for the user with the ID provided.
wp-includes/author-template.php: is_multi_author()	Determines whether this site has more than one author.
wp-includes/author-template.php: get_the_author()	Retrieve the author of the current post.
wp-includes/author-template.php: get_the_modified_author()	Retrieve the author who last edited the current post.
wp-includes/ms-blogs.php: get_blog_option()	Retrieve option value for a given blog id based on name of option.
wp-includes/nav-menu.php: wp_setup_nav_menu_item()	Decorates a menu item object with the shared navigation menu item properties.
wp-includes/nav-menu.php: has_nav_menu()	Determines whether a registered nav menu location has a menu assigned to it.
wp-includes/nav-menu.php: wp_get_nav_menus()	Returns all navigation menu objects.
wp-includes/nav-menu.php: wp_get_nav_menu_items()	Retrieves all menu items of a navigation menu.
wp-includes/nav-menu.php: wp_get_nav_menu_object()	Returns a navigation menu object.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::mt_supportedTextFilters()	Retrieve an empty array because we don’t support per-post text filters.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::pingback_ping()	Retrieves a pingback and registers it.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::pingback_error()	Sends a pingback error based on the given error code and message.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::mw_newMediaObject()	Uploads a file, following your settings.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getPostType()	Retrieves a post type
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getPostTypes()	Retrieves a post types
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getRevisions()	Retrieve revisions for a specific post.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_newComment()	Create new comment.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getPosts()	Retrieve posts.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getTaxonomy()	Retrieve a taxonomy.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getTaxonomies()	Retrieve all taxonomies.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getUser()	Retrieve a user.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getUsers()	Retrieve users.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getProfile()	Retrieve information about the requesting user.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::_prepare_page()	Prepares page data for return in an XML-RPC object.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::_prepare_comment()	Prepares comment data for return in an XML-RPC object.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::_prepare_user()	Prepares user data for return in an XML-RPC object.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::_insert_post()	Helper method for wp_newPost() and wp_editPost(), containing shared logic.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::wp_getPost()	Retrieve a post.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::_prepare_taxonomy()	Prepares taxonomy data for return in an XML-RPC object.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::_prepare_term()	Prepares term data for return in an XML-RPC object.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::_prepare_post()	Prepares post data for return in an XML-RPC object.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::_prepare_post_type()	Prepares post data for return in an XML-RPC object.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::_prepare_media_item()	Prepares media item data for return in an XML-RPC object.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::__construct()	Registers all of the XMLRPC methods that XMLRPC server understands.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::login()	Log user in.
wp-includes/class-wp-xmlrpc-server.php: wp_xmlrpc_server::initialise_blog_option_info()	Set up blog options property.
wp-includes/wp-db.php: wpdb::query()	Performs a MySQL database query, using current database connection.
wp-includes/wp-db.php: wpdb::set_sql_mode()	Changes the current SQL mode, and ensures its WordPress compatibility.
wp-includes/class-wp-widget.php: WP_Widget::display_callback()	Generates the actual widget content (Do NOT override).
wp-includes/class-wp-widget.php: WP_Widget::update_callback()	Handles changed settings (Do NOT override).
wp-includes/class-wp-widget.php: WP_Widget::form_callback()	Generates the widget control form (Do NOT override).
wp-includes/widgets.php: dynamic_sidebar()	Display dynamic sidebar.
wp-includes/widgets.php: is_active_sidebar()	Determines whether a sidebar contains widgets.
wp-includes/widgets.php: wp_get_sidebars_widgets()	Retrieve full list of sidebars and their widget instance IDs.
wp-includes/widgets.php: the_widget()	Output an arbitrary widget as a template tag.
wp-includes/widgets.php: register_sidebar()	Builds the definition for a single sidebar and returns the ID.
wp-includes/comment-template.php: get_post_reply_link()	Retrieves HTML content for reply to post link.
wp-includes/comment-template.php: get_cancel_comment_reply_link()	Retrieves HTML content for cancel comment reply link.
wp-includes/comment-template.php: get_comment_id_fields()	Retrieves hidden input HTML for replying to comments.
wp-includes/comment-template.php: wp_list_comments()	Displays a list of comments.
wp-includes/comment-template.php: comment_form()	Outputs a complete commenting form for use within a template.
wp-includes/comment-template.php: get_trackback_url()	Retrieves the current post’s trackback URL.
wp-includes/comment-template.php: comments_open()	Determines whether the current post is open for comments.
wp-includes/comment-template.php: pings_open()	Determines whether the current post is open for pings.
wp-includes/comment-template.php: comments_template()	Loads the comment template specified in $file.
wp-includes/comment-template.php: comments_popup_link()	Displays the link to the comments for the current post ID.
wp-includes/comment-template.php: get_comment_reply_link()	Retrieves HTML content for reply to comment link.
wp-includes/comment-template.php: get_comment_link()	Retrieves the link to a given comment.
wp-includes/comment-template.php: get_comments_link()	Retrieves the link to the current post comments.
wp-includes/comment-template.php: get_comments_number()	Retrieves the amount of comments a post has.
wp-includes/comment-template.php: get_comment_text()	Retrieves the text of the current comment.
wp-includes/comment-template.php: comment_text()	Displays the text of the current comment.
wp-includes/comment-template.php: get_comment_time()	Retrieves the comment time of the current comment.
wp-includes/comment-template.php: get_comment_type()	Retrieves the comment type of the current comment.
wp-includes/comment-template.php: comment_author_url()	Displays the URL of the author of the current comment, not linked.
wp-includes/comment-template.php: get_comment_author_url_link()	Retrieves the HTML link of the URL of the author of the current comment.
wp-includes/comment-template.php: get_comment_class()	Returns the classes for the comment div as an array.
wp-includes/comment-template.php: get_comment_date()	Retrieves the comment date of the current comment.
wp-includes/comment-template.php: get_comment_excerpt()	Retrieves the excerpt of the given comment.
wp-includes/comment-template.php: comment_excerpt()	Displays the excerpt of the current comment.
wp-includes/comment-template.php: get_comment_ID()	Retrieves the comment ID of the current comment.
wp-includes/comment-template.php: get_comment_author()	Retrieves the author of the current comment.
wp-includes/comment-template.php: comment_author()	Displays the author of the current comment.
wp-includes/comment-template.php: get_comment_author_email()	Retrieves the email of the author of the current comment.
wp-includes/comment-template.php: comment_author_email()	Displays the email of the author of the current global $comment.
wp-includes/comment-template.php: get_comment_author_email_link()	Returns the HTML email link to the author of the current comment.
wp-includes/comment-template.php: get_comment_author_link()	Retrieves the HTML link to the URL of the author of the current comment.
wp-includes/comment-template.php: get_comment_author_IP()	Retrieve the IP address of the author of the current comment.
wp-includes/comment-template.php: get_comment_author_url()	Retrieves the URL of the author of the current comment, not linked.
wp-includes/class-wp-customize-widgets.php: WP_Customize_Widgets::capture_filter_pre_get_option()	Pre-filters captured option values before retrieving.
wp-includes/class-wp-customize-widgets.php: WP_Customize_Widgets::get_setting_args()	Retrieves common arguments to supply when constructing a Customizer setting.
wp-includes/class-wp-customize-widgets.php: WP_Customize_Widgets::customize_register()	Registers Customizer settings and controls for all sidebars and widgets.
wp-includes/class-wp-customize-widgets.php: WP_Customize_Widgets::is_wide_widget()	Determines whether the widget is considered “wide”.
wp-includes/script-loader.php: print_head_scripts()	Prints the script queue in the HTML head on admin pages.
wp-includes/script-loader.php: print_footer_scripts()	Prints the scripts that were queued for the footer or too late for the HTML head.
wp-includes/script-loader.php: print_admin_styles()	Prints the styles queue in the HTML head on admin pages.
wp-includes/script-loader.php: print_late_styles()	Prints the styles that were queued too late for the HTML head.
wp-includes/script-loader.php: wp_default_scripts()	Register all WordPress scripts.
wp-includes/comment.php: _close_comments_for_old_posts()	Close comments on old posts on the fly, without any extra DB queries. Hooked to the_posts.
wp-includes/comment.php: _close_comments_for_old_post()	Close comments on an old post. Hooked to comments_open and pings_open.
wp-includes/comment.php: wp_new_comment()	Adds a new comment to the database.
wp-includes/comment.php: wp_update_comment()	Updates an existing comment in the database.
wp-includes/comment.php: wp_update_comment_count_now()	Updates the comment count for the post.
wp-includes/comment.php: do_trackbacks()	Perform trackbacks.
wp-includes/comment.php: pingback()	Pings back the links found in a post.
wp-includes/comment.php: wp_get_current_commenter()	Get current commenter’s name, email, and URL.
wp-includes/comment.php: wp_filter_comment()	Filters and sanitizes comment data.
wp-includes/comment.php: get_page_of_comment()	Calculate what page number a comment will appear on for comment paging.
wp-includes/comment.php: wp_count_comments()	Retrieves the total comment counts for the whole site or a single post.
wp-includes/comment.php: wp_set_comment_cookies()	Sets the cookies used to store an unauthenticated commentator’s identity. Typically used to recall previous comments by this commentator that are still held in moderation.
wp-includes/comment.php: sanitize_comment_cookies()	Sanitizes the cookies sent to the user already.
wp-includes/comment.php: wp_allow_comment()	Validates whether this comment is allowed to be made.
wp-includes/comment.php: check_comment()	Check whether a comment passes internal checks to be allowed to add.
wp-includes/comment.php: get_comment()	Retrieves comment data given a comment ID or comment object.
wp-includes/meta.php: is_protected_meta()	Determines whether a meta key is considered protected.
wp-includes/meta.php: sanitize_meta()	Sanitizes meta value.
wp-includes/meta.php: register_meta()	Registers a meta key.
wp-includes/meta.php: delete_metadata()	Deletes metadata for the specified object.
wp-includes/meta.php: metadata_exists()	Determines if a meta field with the given key exists for the given object ID.
wp-includes/meta.php: get_metadata_by_mid()	Retrieves metadata by meta ID.
wp-includes/meta.php: update_metadata_by_mid()	Updates metadata by meta ID.
wp-includes/meta.php: delete_metadata_by_mid()	Deletes metadata by meta ID.
wp-includes/meta.php: update_meta_cache()	Updates the metadata cache for the specified objects.
wp-includes/class-wp-editor.php: _WP_Editors::wp_link_query()	Performs post queries for internal linking.
wp-includes/meta.php: add_metadata()	Adds metadata for the specified object.
wp-includes/meta.php: update_metadata()	Updates metadata for the specified object. If no value already exists for the specified object ID and metadata key, the metadata will be added.
wp-includes/class-wp-editor.php: _WP_Editors::editor_settings()
wp-includes/class-wp-editor.php: _WP_Editors::wp_mce_translation()	Translates the default TinyMCE strings and returns them as JSON encoded object ready to be loaded with tinymce.addI18n(), or as JS snippet that should run after tinymce.js is loaded.
wp-includes/class-wp-editor.php: _WP_Editors::parse_settings()	Parse default arguments for the editor instance.
wp-includes/class-wp-editor.php: _WP_Editors::editor()	Outputs the HTML for a single instance of the editor.
wp-includes/media-template.php: wp_print_media_templates()	Prints the templates used in the media manager.

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Version	Description
0.71	Introduced.

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User Contributed Notes User Contributed Notes

Contributed by Codex — 6 years ago

Echo after Filtering

echo apply_filters( $tag, $value );

Get Filtered

$myvar = apply_filters( $tag, $value );

Additional Filter Arguments

$myvar = apply_filters( $tag, $value, $param, $otherparam );

For example:

$myvar = apply_filters( 'example_filter', 'filter me', 'arg1', 'arg2 ');

With the_title filter

$my_custom_title = apply_filters('the_title', '  My Custom Title (tm)  ');
$my_custom_title will now contain 'My Custom Title ™', since the_title filter applies wptexturize() and trim(), among others.

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Contributed by icc97 — 4 years ago
One fundamental argument that is easy to miss is specifying the number of arguments. Most filters have only one argument and so people drop the argument from add_filter.

The 3, below is very important.
```
add_filter( 'example_filter', 'example_callback', 10, 3 );
```
Otherwise you get the following error, such as this StackOverflow question(http://stackoverflow.com/questions/24198086/missing-argument-2-for-the-function-in-wordpress):

Missing argument 2 for example_callback()
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Contributed by peakwebsites — 2 years ago

Something that is not obvious from reading this function’s definition and description is that if add_filter( 'filter_name', 'filter_function' ) is never called/executed in code, the use of apply_filters( 'filter_name', $value ) will return the value of $value by default.

I noticed a call to apply_filters( 'my_filter', ... ) in my theme’s functions.php file and couldn’t find a similar add_filter( 'my_filter', ... ) call anywhere else and was confused about this (I’m still wrapping my head around filters/hooks).

More detail on this can be seen in the example found on this page: https://docs.presscustomizr.com/article/26-wordpress-actions-filters-and-hooks-a-guide-for-non-developers at the section about Filters.

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Contributed by tampadave — 6 years ago

Uh huh.

apply_filters ( string $tag, mixed $value );

function apply_filters( $tag, $value )

Parameters:
$tag — (string) (Required) The name of the filter hook.
$value — (mixed) (Required) The value on which the filters hooked to $tag are applied on.
$var — (mixed) (Required) Additional variables passed to the functions hooked to $tag.

Right. Tip: this does not make sense, in case you missed it.

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Code Reference

apply_filters( string $hook_name, mixed $value )

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apply_filters( string $hook_name, mixed $value )

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Parameters #Parameters

Return #Return

Source #Source

Related #Related

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Used By #Used By

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User Contributed Notes #User Contributed Notes

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