ons.php ` |  Attempts to raise the PHP memory limit for memory intensive processes.   
[ _deprecated_hook() ](https://developer.wordpress.org/reference/functions/_deprecated_hook/) ` wp-includes/functions.php ` |  Marks a deprecated action or filter hook as deprecated and throws a notice.   
[ wp_get_ext_types() ](https://developer.wordpress.org/reference/functions/wp_get_ext_types/) ` wp-includes/functions.php ` |  Retrieves the list of common file extensions and their types.   
[ wp_get_canonical_url() ](https://developer.wordpress.org/reference/functions/wp_get_canonical_url/) ` wp-includes/link-template.php ` |  Returns the canonical URL for a post.   
[ wp_get_attachment_caption() ](https://developer.wordpress.org/reference/functions/wp_get_attachment_caption/) ` wp-includes/post.php ` |  Retrieves the caption for an attachment.   
[ WP_Site_Query::get_site_ids() ](https://developer.wordpress.org/reference/classes/wp_site_query/get_site_ids/) ` wp-includes/class-wp-site-query.php ` |  Used internally to get a list of site IDs matching the query vars.   
[ WP_Site_Query::set_found_sites() ](https://developer.wordpress.org/reference/classes/wp_site_query/set_found_sites/) ` wp-includes/class-wp-site-query.php ` |  Populates found_sites and max_num_pages properties for the current query if the limit clause was used.   
[ WP_Posts_List_Table::categories_dropdown() ](https://developer.wordpress.org/reference/classes/wp_posts_list_table/categories_dropdown/) ` wp-admin/includes/class-wp-posts-list-table.php ` |  Displays a categories drop-down for filtering on the Posts list table.   
[ network_edit_site_nav() ](https://developer.wordpress.org/reference/functions/network_edit_site_nav/) ` wp-admin/includes/ms.php ` |  Outputs the HTML for a network’s “Edit Site” tabular interface.   
[ wxr_term_meta() ](https://developer.wordpress.org/reference/functions/wxr_term_meta/) ` wp-admin/includes/export.php ` |  Outputs term meta XML tags for a given term object.   
[ rest_get_server() ](https://developer.wordpress.org/reference/functions/rest_get_server/) ` wp-includes/rest-api.php ` |  Retrieves the current REST server instance.   
[ the_embed_site_title() ](https://developer.wordpress.org/reference/functions/the_embed_site_title/) ` wp-includes/embed.php ` |  Prints the necessary markup for the site title in an embed template.   
[ WP_Customize_Manager::get_nonces() ](https://developer.wordpress.org/reference/classes/wp_customize_manager/get_nonces/) ` wp-includes/class-wp-customize-manager.php ` |  Gets nonces for the Customizer.   
[ WP_Customize_Manager::get_previewable_devices() ](https://developer.wordpress.org/reference/classes/wp_customize_manager/get_previewable_devices/) ` wp-includes/class-wp-customize-manager.php ` |  Returns a list of devices to allow previewing.   
[ WP_Image_Editor_Imagick::thumbnail_image() ](https://developer.wordpress.org/reference/classes/wp_image_editor_imagick/thumbnail_image/) ` wp-includes/class-wp-image-editor-imagick.php ` |  Efficiently resize the current image   
[ get_custom_logo() ](https://developer.wordpress.org/reference/functions/get_custom_logo/) ` wp-includes/general-template.php ` |  Returns a custom logo, linked to home unless the theme supports removing the link on the home page.   
[ WP_REST_Request::from_url() ](https://developer.wordpress.org/reference/classes/wp_rest_request/from_url/) ` wp-includes/rest-api/class-wp-rest-request.php ` |  Retrieves a [ WP_REST_Request ](https://developer.wordpress.org/reference/classes/wp_rest_request/) object from a full URL.   
[ WP_REST_Response::get_curies() ](https://developer.wordpress.org/reference/classes/wp_rest_response/get_curies/) ` wp-includes/rest-api/class-wp-rest-response.php ` |  Retrieves the CURIEs (compact URIs) used for relations.   
[ _wp_get_current_user() ](https://developer.wordpress.org/reference/functions/_wp_get_current_user/) ` wp-includes/user.php ` |  Retrieves the current user object.   
[ wp_authenticate_emai