I

_cleanup_image_add_caption() – Private preg_replace callback used in image_add_caption()

_copy_image_file() – Copy an existing image file.

_crop_image_resource() – Crops an image resource. Internal use only.

_doing_it_wrong() – Mark something as being incorrectly called.

_flip_image_resource() – Flips an image resource. Internal use only.

_get_non_cached_ids() – Retrieve IDs that are not already present in the cache.

_get_widget_id_base() – Retrieves the widget ID base value.

_image_get_preview_ratio() – Image preview ratio. Internal use only.

_insert_into_post_button() – This was once used to display an ‘Insert into Post’ button.

_ipad_meta() –

_is_valid_nav_menu_item() – Return if a menu item is valid.

_load_image_to_edit_path() – Retrieve the path or url of an attachment’s attached file.

_load_textdomain_just_in_time() – Loads plugin and theme textdomains just-in-time.

_nav_menu_item_id_use_once() – Prevents a menu item ID from being used more than once.

_remove_qs_args_if_not_in_url() – Removes arguments from a query string if they are not present in a URL DO NOT use this in plugin code.

_rotate_image_resource() – Returns an image resource. Internal use only.

_sort_nav_menu_items() – Sort menu items by the desired key.

_usort_terms_by_ID() – Sort categories by ID.

_wp_admin_bar_init() – Instantiate the admin bar object and set it up as a global for access elsewhere.

_wp_customize_include() – Includes and instantiates the WP_Customize_Manager class.

_wp_die_process_input() – Processes arguments passed to wp_die() consistently for its handlers.

_wp_get_image_size_from_meta() – Get the image size as array from its meta data.

_wp_image_editor_choose() – Tests which editors are capable of supporting the request.

_wp_iso_convert() – Helper function to convert hex encoded chars to ASCII

_wp_menu_item_classes_by_context() – Add the class property classes for the current context, if applicable.

_wp_sanitize_utf8_in_redirect() – URL encode UTF-8 characters in a URL.

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

. $editor_id_attr . ); // Prepare the content for the Visual or Text editor, only when TinyMCE is used (back-compat). if ( self::$this_tinymce ) { add_filter( , , 10, 2 ); } /** * Filters the default editor content. * * @since 2.1.0 * * @param string $content Default editor content. * @param string $default_editor The default editor for the current user. * Either or . */ $content = apply_filters( , $content, $default_editor ); // Remove the filter as the next editor on the same page may not need it. if ( self::$this_tinymce ) { remove_filter( , ); } // Back-compat for the `htmledit_pre` and `richedit_pre` filters if ( === $default_editor && has_filter( ) ) { // TODO: needs _deprecated_filter(), use _deprecated_function() as substitute for now _deprecated_function( – filter

$adjacent_image_link – filter

$type_upload_iframe_src – filter

AbstractLogger::info() – Interesting events.

Actions::compile_dependency_injection_container() – Compiles the dependency injection container.

add_clean_index() – Adds an index to a specified table.

add_custom_image_header() – Add callbacks for image header display.

add_image_size() – Register a new image size.

add_index() – add index

add_inline_data – action

adjacent_image_link() – Displays next or previous image link that has the same post parent.

admin_bar_init – action

Admin_Conditional::is_met() –

admin_email_check_interval – filter

admin_init – action

admin_print_scripts-index.php – action

admin/class-admin-init.php

admin/class-help-center-item.php

admin/class-yoast-input-validation.php

admin/config-ui/components/interface-component.php

admin/endpoints/class-endpoint-indexable.php

admin/endpoints/interface-endpoint-storable.php

admin/formatter/interface-metabox-formatter.php

admin/import

admin/import/class-import-detector.php

admin/import/class-import-plugin.php

admin/import/class-import-settings.php

admin/import/class-import-status.php

admin/import/plugins

admin/import/plugins/class-abstract-plugin-importer.php

admin/import/plugins/class-import-aioseo.php

admin/import/plugins/class-import-greg-high-performance-seo.php

admin/import/plugins/class-import-headspace.php

admin/import/plugins/class-import-jetpack.php

admin/import/plugins/class-import-platinum-seo-pack.php

admin/import/plugins/class-import-premium-seo-pack.php

admin/import/plugins/class-import-seo-framework.php

admin/import/plugins/class-import-seopressor.php

admin/import/plugins/class-import-smartcrawl.php

admin/import/plugins/class-import-squirrly.php

admin/import/plugins/class-import-ultimate-seo.php

admin/import/plugins/class-import-woothemes-seo.php

admin/import/plugins/class-import-wp-meta-seo.php

admin/import/plugins/class-import-wpseo.php

admin/import/plugins/class-importers.php

admin/index.php

admin/interface-collection.php

admin/interface-installable.php

admin/links/class-link-installer.php

admin/links/class-link-internal-lookup.php

admin/metabox/interface-metabox-analysis.php

admin/metabox/interface-metabox-section.php

admin/metabox/interface-metabox-tab.php

admin/notifiers/interface-notification-handler.php

admin/services/class-indexable-post-provider.php

admin/services/class-indexable-provider.php

admin/services/class-indexable-term-provider.php