WordPress/wp-includes/class-wp-post-type.php
Peter Wilson b8b35c78b7 Posts, Post Types; Taxonomy: Translate default labels once.
Improve the translation of post type and taxonomy labels by caching the translations during runtime. To account for internationalisation plugins, the runtime cache is cleared as the post types/taxonomies are reinitiated on `change_local` hook.

The same property and methods are added to both `WP_Post_Type` and `WP_Taxonomy`:

* `$default_labels`: for storing the translated strings at runtime
* `get_default_labels()`: for getting the default labels, these are translated on the first run and stored in the new property.
* `reset_default_labels()`: to clear the runtime cache and force a re-translation of the default labels

Props Chouby, nacin, SergeyBiryukov, Rarst, chriscct7, ocean90, audrasjb, costdev.
Fixes #26746.


Built from https://develop.svn.wordpress.org/trunk@53058


git-svn-id: http://core.svn.wordpress.org/trunk@52647 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2022-04-04 03:50:07 +00:00

862 lines
24 KiB
PHP

<?php
/**
* Post API: WP_Post_Type class
*
* @package WordPress
* @subpackage Post
* @since 4.6.0
*/
/**
* Core class used for interacting with post types.
*
* @since 4.6.0
*
* @see register_post_type()
*/
final class WP_Post_Type {
/**
* Post type key.
*
* @since 4.6.0
* @var string $name
*/
public $name;
/**
* Name of the post type shown in the menu. Usually plural.
*
* @since 4.6.0
* @var string $label
*/
public $label;
/**
* Labels object for this post type.
*
* If not set, post labels are inherited for non-hierarchical types
* and page labels for hierarchical ones.
*
* @see get_post_type_labels()
*
* @since 4.6.0
* @var stdClass $labels
*/
public $labels;
/**
* Default labels.
*
* @since 6.0.0
* @var (string|null)[][] $default_labels
*/
protected static $default_labels = array();
/**
* A short descriptive summary of what the post type is.
*
* Default empty.
*
* @since 4.6.0
* @var string $description
*/
public $description = '';
/**
* Whether a post type is intended for use publicly either via the admin interface or by front-end users.
*
* While the default settings of $exclude_from_search, $publicly_queryable, $show_ui, and $show_in_nav_menus
* are inherited from public, each does not rely on this relationship and controls a very specific intention.
*
* Default false.
*
* @since 4.6.0
* @var bool $public
*/
public $public = false;
/**
* Whether the post type is hierarchical (e.g. page).
*
* Default false.
*
* @since 4.6.0
* @var bool $hierarchical
*/
public $hierarchical = false;
/**
* Whether to exclude posts with this post type from front end search
* results.
*
* Default is the opposite value of $public.
*
* @since 4.6.0
* @var bool $exclude_from_search
*/
public $exclude_from_search = null;
/**
* Whether queries can be performed on the front end for the post type as part of `parse_request()`.
*
* Endpoints would include:
*
* - `?post_type={post_type_key}`
* - `?{post_type_key}={single_post_slug}`
* - `?{post_type_query_var}={single_post_slug}`
*
* Default is the value of $public.
*
* @since 4.6.0
* @var bool $publicly_queryable
*/
public $publicly_queryable = null;
/**
* Whether to generate and allow a UI for managing this post type in the admin.
*
* Default is the value of $public.
*
* @since 4.6.0
* @var bool $show_ui
*/
public $show_ui = null;
/**
* Where to show the post type in the admin menu.
*
* To work, $show_ui must be true. If true, the post type is shown in its own top level menu. If false, no menu is
* shown. If a string of an existing top level menu ('tools.php' or 'edit.php?post_type=page', for example), the
* post type will be placed as a sub-menu of that.
*
* Default is the value of $show_ui.
*
* @since 4.6.0
* @var bool|string $show_in_menu
*/
public $show_in_menu = null;
/**
* Makes this post type available for selection in navigation menus.
*
* Default is the value $public.
*
* @since 4.6.0
* @var bool $show_in_nav_menus
*/
public $show_in_nav_menus = null;
/**
* Makes this post type available via the admin bar.
*
* Default is the value of $show_in_menu.
*
* @since 4.6.0
* @var bool $show_in_admin_bar
*/
public $show_in_admin_bar = null;
/**
* The position in the menu order the post type should appear.
*
* To work, $show_in_menu must be true. Default null (at the bottom).
*
* @since 4.6.0
* @var int $menu_position
*/
public $menu_position = null;
/**
* The URL or reference to the icon to be used for this menu.
*
* Pass a base64-encoded SVG using a data URI, which will be colored to match the color scheme.
* This should begin with 'data:image/svg+xml;base64,'. Pass the name of a Dashicons helper class
* to use a font icon, e.g. 'dashicons-chart-pie'. Pass 'none' to leave div.wp-menu-image empty
* so an icon can be added via CSS.
*
* Defaults to use the posts icon.
*
* @since 4.6.0
* @var string $menu_icon
*/
public $menu_icon = null;
/**
* The string to use to build the read, edit, and delete capabilities.
*
* May be passed as an array to allow for alternative plurals when using
* this argument as a base to construct the capabilities, e.g.
* array( 'story', 'stories' ). Default 'post'.
*
* @since 4.6.0
* @var string $capability_type
*/
public $capability_type = 'post';
/**
* Whether to use the internal default meta capability handling.
*
* Default false.
*
* @since 4.6.0
* @var bool $map_meta_cap
*/
public $map_meta_cap = false;
/**
* Provide a callback function that sets up the meta boxes for the edit form.
*
* Do `remove_meta_box()` and `add_meta_box()` calls in the callback. Default null.
*
* @since 4.6.0
* @var callable $register_meta_box_cb
*/
public $register_meta_box_cb = null;
/**
* An array of taxonomy identifiers that will be registered for the post type.
*
* Taxonomies can be registered later with `register_taxonomy()` or `register_taxonomy_for_object_type()`.
*
* Default empty array.
*
* @since 4.6.0
* @var array $taxonomies
*/
public $taxonomies = array();
/**
* Whether there should be post type archives, or if a string, the archive slug to use.
*
* Will generate the proper rewrite rules if $rewrite is enabled. Default false.
*
* @since 4.6.0
* @var bool|string $has_archive
*/
public $has_archive = false;
/**
* Sets the query_var key for this post type.
*
* Defaults to $post_type key. If false, a post type cannot be loaded at `?{query_var}={post_slug}`.
* If specified as a string, the query `?{query_var_string}={post_slug}` will be valid.
*
* @since 4.6.0
* @var string|bool $query_var
*/
public $query_var;
/**
* Whether to allow this post type to be exported.
*
* Default true.
*
* @since 4.6.0
* @var bool $can_export
*/
public $can_export = true;
/**
* Whether to delete posts of this type when deleting a user.
*
* - If true, posts of this type belonging to the user will be moved to Trash when the user is deleted.
* - If false, posts of this type belonging to the user will *not* be trashed or deleted.
* - If not set (the default), posts are trashed if post type supports the 'author' feature.
* Otherwise posts are not trashed or deleted.
*
* Default null.
*
* @since 4.6.0
* @var bool $delete_with_user
*/
public $delete_with_user = null;
/**
* Array of blocks to use as the default initial state for an editor session.
*
* Each item should be an array containing block name and optional attributes.
*
* Default empty array.
*
* @link https://developer.wordpress.org/block-editor/developers/block-api/block-templates/
*
* @since 5.0.0
* @var array $template
*/
public $template = array();
/**
* Whether the block template should be locked if $template is set.
*
* - If set to 'all', the user is unable to insert new blocks, move existing blocks
* and delete blocks.
* - If set to 'insert', the user is able to move existing blocks but is unable to insert
* new blocks and delete blocks.
*
* Default false.
*
* @link https://developer.wordpress.org/block-editor/developers/block-api/block-templates/
*
* @since 5.0.0
* @var string|false $template_lock
*/
public $template_lock = false;
/**
* Whether this post type is a native or "built-in" post_type.
*
* Default false.
*
* @since 4.6.0
* @var bool $_builtin
*/
public $_builtin = false;
/**
* URL segment to use for edit link of this post type.
*
* Default 'post.php?post=%d'.
*
* @since 4.6.0
* @var string $_edit_link
*/
public $_edit_link = 'post.php?post=%d';
/**
* Post type capabilities.
*
* @since 4.6.0
* @var stdClass $cap
*/
public $cap;
/**
* Triggers the handling of rewrites for this post type.
*
* Defaults to true, using $post_type as slug.
*
* @since 4.6.0
* @var array|false $rewrite
*/
public $rewrite;
/**
* The features supported by the post type.
*
* @since 4.6.0
* @var array|bool $supports
*/
public $supports;
/**
* Whether this post type should appear in the REST API.
*
* Default false. If true, standard endpoints will be registered with
* respect to $rest_base and $rest_controller_class.
*
* @since 4.7.4
* @var bool $show_in_rest
*/
public $show_in_rest;
/**
* The base path for this post type's REST API endpoints.
*
* @since 4.7.4
* @var string|bool $rest_base
*/
public $rest_base;
/**
* The namespace for this post type's REST API endpoints.
*
* @since 5.9.0
* @var string|bool $rest_namespace
*/
public $rest_namespace;
/**
* The controller for this post type's REST API endpoints.
*
* Custom controllers must extend WP_REST_Controller.
*
* @since 4.7.4
* @var string|bool $rest_controller_class
*/
public $rest_controller_class;
/**
* The controller instance for this post type's REST API endpoints.
*
* Lazily computed. Should be accessed using {@see WP_Post_Type::get_rest_controller()}.
*
* @since 5.3.0
* @var WP_REST_Controller $rest_controller
*/
public $rest_controller;
/**
* Constructor.
*
* See the register_post_type() function for accepted arguments for `$args`.
*
* Will populate object properties from the provided arguments and assign other
* default properties based on that information.
*
* @since 4.6.0
*
* @see register_post_type()
*
* @param string $post_type Post type key.
* @param array|string $args Optional. Array or string of arguments for registering a post type.
* Default empty array.
*/
public function __construct( $post_type, $args = array() ) {
$this->name = $post_type;
$this->set_props( $args );
}
/**
* Sets post type properties.
*
* See the register_post_type() function for accepted arguments for `$args`.
*
* @since 4.6.0
*
* @param array|string $args Array or string of arguments for registering a post type.
*/
public function set_props( $args ) {
$args = wp_parse_args( $args );
/**
* Filters the arguments for registering a post type.
*
* @since 4.4.0
*
* @param array $args Array of arguments for registering a post type.
* See the register_post_type() function for accepted arguments.
* @param string $post_type Post type key.
*/
$args = apply_filters( 'register_post_type_args', $args, $this->name );
$has_edit_link = ! empty( $args['_edit_link'] );
// Args prefixed with an underscore are reserved for internal use.
$defaults = array(
'labels' => array(),
'description' => '',
'public' => false,
'hierarchical' => false,
'exclude_from_search' => null,
'publicly_queryable' => null,
'show_ui' => null,
'show_in_menu' => null,
'show_in_nav_menus' => null,
'show_in_admin_bar' => null,
'menu_position' => null,
'menu_icon' => null,
'capability_type' => 'post',
'capabilities' => array(),
'map_meta_cap' => null,
'supports' => array(),
'register_meta_box_cb' => null,
'taxonomies' => array(),
'has_archive' => false,
'rewrite' => true,
'query_var' => true,
'can_export' => true,
'delete_with_user' => null,
'show_in_rest' => false,
'rest_base' => false,
'rest_namespace' => false,
'rest_controller_class' => false,
'template' => array(),
'template_lock' => false,
'_builtin' => false,
'_edit_link' => 'post.php?post=%d',
);
$args = array_merge( $defaults, $args );
$args['name'] = $this->name;
// If not set, default to the setting for 'public'.
if ( null === $args['publicly_queryable'] ) {
$args['publicly_queryable'] = $args['public'];
}
// If not set, default to the setting for 'public'.
if ( null === $args['show_ui'] ) {
$args['show_ui'] = $args['public'];
}
// If not set, default rest_namespace to wp/v2 if show_in_rest is true.
if ( false === $args['rest_namespace'] && ! empty( $args['show_in_rest'] ) ) {
$args['rest_namespace'] = 'wp/v2';
}
// If not set, default to the setting for 'show_ui'.
if ( null === $args['show_in_menu'] || ! $args['show_ui'] ) {
$args['show_in_menu'] = $args['show_ui'];
}
// If not set, default to the setting for 'show_in_menu'.
if ( null === $args['show_in_admin_bar'] ) {
$args['show_in_admin_bar'] = (bool) $args['show_in_menu'];
}
// If not set, default to the setting for 'public'.
if ( null === $args['show_in_nav_menus'] ) {
$args['show_in_nav_menus'] = $args['public'];
}
// If not set, default to true if not public, false if public.
if ( null === $args['exclude_from_search'] ) {
$args['exclude_from_search'] = ! $args['public'];
}
// Back compat with quirky handling in version 3.0. #14122.
if ( empty( $args['capabilities'] )
&& null === $args['map_meta_cap'] && in_array( $args['capability_type'], array( 'post', 'page' ), true )
) {
$args['map_meta_cap'] = true;
}
// If not set, default to false.
if ( null === $args['map_meta_cap'] ) {
$args['map_meta_cap'] = false;
}
// If there's no specified edit link and no UI, remove the edit link.
if ( ! $args['show_ui'] && ! $has_edit_link ) {
$args['_edit_link'] = '';
}
$this->cap = get_post_type_capabilities( (object) $args );
unset( $args['capabilities'] );
if ( is_array( $args['capability_type'] ) ) {
$args['capability_type'] = $args['capability_type'][0];
}
if ( false !== $args['query_var'] ) {
if ( true === $args['query_var'] ) {
$args['query_var'] = $this->name;
} else {
$args['query_var'] = sanitize_title_with_dashes( $args['query_var'] );
}
}
if ( false !== $args['rewrite'] && ( is_admin() || get_option( 'permalink_structure' ) ) ) {
if ( ! is_array( $args['rewrite'] ) ) {
$args['rewrite'] = array();
}
if ( empty( $args['rewrite']['slug'] ) ) {
$args['rewrite']['slug'] = $this->name;
}
if ( ! isset( $args['rewrite']['with_front'] ) ) {
$args['rewrite']['with_front'] = true;
}
if ( ! isset( $args['rewrite']['pages'] ) ) {
$args['rewrite']['pages'] = true;
}
if ( ! isset( $args['rewrite']['feeds'] ) || ! $args['has_archive'] ) {
$args['rewrite']['feeds'] = (bool) $args['has_archive'];
}
if ( ! isset( $args['rewrite']['ep_mask'] ) ) {
if ( isset( $args['permalink_epmask'] ) ) {
$args['rewrite']['ep_mask'] = $args['permalink_epmask'];
} else {
$args['rewrite']['ep_mask'] = EP_PERMALINK;
}
}
}
foreach ( $args as $property_name => $property_value ) {
$this->$property_name = $property_value;
}
$this->labels = get_post_type_labels( $this );
$this->label = $this->labels->name;
}
/**
* Sets the features support for the post type.
*
* @since 4.6.0
*/
public function add_supports() {
if ( ! empty( $this->supports ) ) {
foreach ( $this->supports as $feature => $args ) {
if ( is_array( $args ) ) {
add_post_type_support( $this->name, $feature, $args );
} else {
add_post_type_support( $this->name, $args );
}
}
unset( $this->supports );
} elseif ( false !== $this->supports ) {
// Add default features.
add_post_type_support( $this->name, array( 'title', 'editor' ) );
}
}
/**
* Adds the necessary rewrite rules for the post type.
*
* @since 4.6.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
* @global WP $wp Current WordPress environment instance.
*/
public function add_rewrite_rules() {
global $wp_rewrite, $wp;
if ( false !== $this->query_var && $wp && is_post_type_viewable( $this ) ) {
$wp->add_query_var( $this->query_var );
}
if ( false !== $this->rewrite && ( is_admin() || get_option( 'permalink_structure' ) ) ) {
if ( $this->hierarchical ) {
add_rewrite_tag( "%$this->name%", '(.+?)', $this->query_var ? "{$this->query_var}=" : "post_type=$this->name&pagename=" );
} else {
add_rewrite_tag( "%$this->name%", '([^/]+)', $this->query_var ? "{$this->query_var}=" : "post_type=$this->name&name=" );
}
if ( $this->has_archive ) {
$archive_slug = true === $this->has_archive ? $this->rewrite['slug'] : $this->has_archive;
if ( $this->rewrite['with_front'] ) {
$archive_slug = substr( $wp_rewrite->front, 1 ) . $archive_slug;
} else {
$archive_slug = $wp_rewrite->root . $archive_slug;
}
add_rewrite_rule( "{$archive_slug}/?$", "index.php?post_type=$this->name", 'top' );
if ( $this->rewrite['feeds'] && $wp_rewrite->feeds ) {
$feeds = '(' . trim( implode( '|', $wp_rewrite->feeds ) ) . ')';
add_rewrite_rule( "{$archive_slug}/feed/$feeds/?$", "index.php?post_type=$this->name" . '&feed=$matches[1]', 'top' );
add_rewrite_rule( "{$archive_slug}/$feeds/?$", "index.php?post_type=$this->name" . '&feed=$matches[1]', 'top' );
}
if ( $this->rewrite['pages'] ) {
add_rewrite_rule( "{$archive_slug}/{$wp_rewrite->pagination_base}/([0-9]{1,})/?$", "index.php?post_type=$this->name" . '&paged=$matches[1]', 'top' );
}
}
$permastruct_args = $this->rewrite;
$permastruct_args['feed'] = $permastruct_args['feeds'];
add_permastruct( $this->name, "{$this->rewrite['slug']}/%$this->name%", $permastruct_args );
}
}
/**
* Registers the post type meta box if a custom callback was specified.
*
* @since 4.6.0
*/
public function register_meta_boxes() {
if ( $this->register_meta_box_cb ) {
add_action( 'add_meta_boxes_' . $this->name, $this->register_meta_box_cb, 10, 1 );
}
}
/**
* Adds the future post hook action for the post type.
*
* @since 4.6.0
*/
public function add_hooks() {
add_action( 'future_' . $this->name, '_future_post_hook', 5, 2 );
}
/**
* Registers the taxonomies for the post type.
*
* @since 4.6.0
*/
public function register_taxonomies() {
foreach ( $this->taxonomies as $taxonomy ) {
register_taxonomy_for_object_type( $taxonomy, $this->name );
}
}
/**
* Removes the features support for the post type.
*
* @since 4.6.0
*
* @global array $_wp_post_type_features Post type features.
*/
public function remove_supports() {
global $_wp_post_type_features;
unset( $_wp_post_type_features[ $this->name ] );
}
/**
* Removes any rewrite rules, permastructs, and rules for the post type.
*
* @since 4.6.0
*
* @global WP_Rewrite $wp_rewrite WordPress rewrite component.
* @global WP $wp Current WordPress environment instance.
* @global array $post_type_meta_caps Used to remove meta capabilities.
*/
public function remove_rewrite_rules() {
global $wp, $wp_rewrite, $post_type_meta_caps;
// Remove query var.
if ( false !== $this->query_var ) {
$wp->remove_query_var( $this->query_var );
}
// Remove any rewrite rules, permastructs, and rules.
if ( false !== $this->rewrite ) {
remove_rewrite_tag( "%$this->name%" );
remove_permastruct( $this->name );
foreach ( $wp_rewrite->extra_rules_top as $regex => $query ) {
if ( false !== strpos( $query, "index.php?post_type=$this->name" ) ) {
unset( $wp_rewrite->extra_rules_top[ $regex ] );
}
}
}
// Remove registered custom meta capabilities.
foreach ( $this->cap as $cap ) {
unset( $post_type_meta_caps[ $cap ] );
}
}
/**
* Unregisters the post type meta box if a custom callback was specified.
*
* @since 4.6.0
*/
public function unregister_meta_boxes() {
if ( $this->register_meta_box_cb ) {
remove_action( 'add_meta_boxes_' . $this->name, $this->register_meta_box_cb, 10 );
}
}
/**
* Removes the post type from all taxonomies.
*
* @since 4.6.0
*/
public function unregister_taxonomies() {
foreach ( get_object_taxonomies( $this->name ) as $taxonomy ) {
unregister_taxonomy_for_object_type( $taxonomy, $this->name );
}
}
/**
* Removes the future post hook action for the post type.
*
* @since 4.6.0
*/
public function remove_hooks() {
remove_action( 'future_' . $this->name, '_future_post_hook', 5 );
}
/**
* Gets the REST API controller for this post type.
*
* Will only instantiate the controller class once per request.
*
* @since 5.3.0
*
* @return WP_REST_Controller|null The controller instance, or null if the post type
* is set not to show in rest.
*/
public function get_rest_controller() {
if ( ! $this->show_in_rest ) {
return null;
}
$class = $this->rest_controller_class ? $this->rest_controller_class : WP_REST_Posts_Controller::class;
if ( ! class_exists( $class ) ) {
return null;
}
if ( ! is_subclass_of( $class, WP_REST_Controller::class ) ) {
return null;
}
if ( ! $this->rest_controller ) {
$this->rest_controller = new $class( $this->name );
}
if ( ! ( $this->rest_controller instanceof $class ) ) {
return null;
}
return $this->rest_controller;
}
/**
* Returns the default labels for post types.
*
* @since 6.0.0
*
* @return (string|null)[][] The default labels for post types.
*/
public static function get_default_labels() {
if ( ! empty( self::$default_labels ) ) {
return self::$default_labels;
}
self::$default_labels = array(
'name' => array( _x( 'Posts', 'post type general name' ), _x( 'Pages', 'post type general name' ) ),
'singular_name' => array( _x( 'Post', 'post type singular name' ), _x( 'Page', 'post type singular name' ) ),
'add_new' => array( _x( 'Add New', 'post' ), _x( 'Add New', 'page' ) ),
'add_new_item' => array( __( 'Add New Post' ), __( 'Add New Page' ) ),
'edit_item' => array( __( 'Edit Post' ), __( 'Edit Page' ) ),
'new_item' => array( __( 'New Post' ), __( 'New Page' ) ),
'view_item' => array( __( 'View Post' ), __( 'View Page' ) ),
'view_items' => array( __( 'View Posts' ), __( 'View Pages' ) ),
'search_items' => array( __( 'Search Posts' ), __( 'Search Pages' ) ),
'not_found' => array( __( 'No posts found.' ), __( 'No pages found.' ) ),
'not_found_in_trash' => array( __( 'No posts found in Trash.' ), __( 'No pages found in Trash.' ) ),
'parent_item_colon' => array( null, __( 'Parent Page:' ) ),
'all_items' => array( __( 'All Posts' ), __( 'All Pages' ) ),
'archives' => array( __( 'Post Archives' ), __( 'Page Archives' ) ),
'attributes' => array( __( 'Post Attributes' ), __( 'Page Attributes' ) ),
'insert_into_item' => array( __( 'Insert into post' ), __( 'Insert into page' ) ),
'uploaded_to_this_item' => array( __( 'Uploaded to this post' ), __( 'Uploaded to this page' ) ),
'featured_image' => array( _x( 'Featured image', 'post' ), _x( 'Featured image', 'page' ) ),
'set_featured_image' => array( _x( 'Set featured image', 'post' ), _x( 'Set featured image', 'page' ) ),
'remove_featured_image' => array( _x( 'Remove featured image', 'post' ), _x( 'Remove featured image', 'page' ) ),
'use_featured_image' => array( _x( 'Use as featured image', 'post' ), _x( 'Use as featured image', 'page' ) ),
'filter_items_list' => array( __( 'Filter posts list' ), __( 'Filter pages list' ) ),
'filter_by_date' => array( __( 'Filter by date' ), __( 'Filter by date' ) ),
'items_list_navigation' => array( __( 'Posts list navigation' ), __( 'Pages list navigation' ) ),
'items_list' => array( __( 'Posts list' ), __( 'Pages list' ) ),
'item_published' => array( __( 'Post published.' ), __( 'Page published.' ) ),
'item_published_privately' => array( __( 'Post published privately.' ), __( 'Page published privately.' ) ),
'item_reverted_to_draft' => array( __( 'Post reverted to draft.' ), __( 'Page reverted to draft.' ) ),
'item_scheduled' => array( __( 'Post scheduled.' ), __( 'Page scheduled.' ) ),
'item_updated' => array( __( 'Post updated.' ), __( 'Page updated.' ) ),
'item_link' => array(
_x( 'Post Link', 'navigation link block title' ),
_x( 'Page Link', 'navigation link block title' ),
),
'item_link_description' => array(
_x( 'A link to a post.', 'navigation link block description' ),
_x( 'A link to a page.', 'navigation link block description' ),
),
);
return self::$default_labels;
}
/**
* Resets the cache for the default labels.
*
* @since 6.0.0
*/
public static function reset_default_labels() {
self::$default_labels = array();
}
}