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ðŸ“ ..
ðŸ“ ID3
ðŸ“ IXR
ðŸ“ PHPMailer
ðŸ“ Requests
ðŸ“ SimplePie
ðŸ“ Text
ðŸ“„ admin-bar.php(36.24 KB)
ðŸ“ assets
ðŸ“„ atomlib.php(11.79 KB)
ðŸ“„ author-template.php(18.51 KB)
ðŸ“ block-bindings
ðŸ“„ block-bindings.php(5.46 KB)
ðŸ“„ block-editor.php(28.12 KB)
ðŸ“„ block-i18n.json(316 B)
ðŸ“ block-patterns
ðŸ“„ block-patterns.php(12.9 KB)
ðŸ“ block-supports
ðŸ“„ block-template-utils.php(60.46 KB)
ðŸ“„ block-template.php(15 KB)
ðŸ“ blocks
ðŸ“„ blocks.php(109.11 KB)
ðŸ“„ bookmark-template.php(12.47 KB)
ðŸ“„ bookmark.php(15.07 KB)
ðŸ“„ cache-compat.php(5.83 KB)
ðŸ“„ cache.php(13.16 KB)
ðŸ“„ canonical.php(33.71 KB)
ðŸ“„ capabilities.php(41.72 KB)
ðŸ“„ category-template.php(55.67 KB)
ðŸ“„ category.php(12.53 KB)
ðŸ“ certificates
ðŸ“„ class-IXR.php(2.55 KB)
ðŸ“„ class-avif-info.php(28.92 KB)
ðŸ“„ class-feed.php(539 B)
ðŸ“„ class-http.php(367 B)
ðŸ“„ class-json.php(42.66 KB)
ðŸ“„ class-oembed.php(401 B)
ðŸ“„ class-phpass.php(6.61 KB)
ðŸ“„ class-phpmailer.php(664 B)
ðŸ“„ class-pop3.php(20.63 KB)
ðŸ“„ class-requests.php(2.18 KB)
ðŸ“„ class-simplepie.php(453 B)
ðŸ“„ class-smtp.php(457 B)
ðŸ“„ class-snoopy.php(36.83 KB)
ðŸ“„ class-walker-category-dropdown.php(2.41 KB)
ðŸ“„ class-walker-category.php(8.28 KB)
ðŸ“„ class-walker-comment.php(13.89 KB)
ðŸ“„ class-walker-nav-menu.php(11.76 KB)
ðŸ“„ class-walker-page-dropdown.php(2.65 KB)
ðŸ“„ class-walker-page.php(7.43 KB)
ðŸ“„ class-wp-admin-bar.php(17.46 KB)
ðŸ“„ class-wp-ajax-response.php(5.14 KB)
ðŸ“„ class-wp-application-passwords.php(16.7 KB)
ðŸ“„ class-wp-block-bindings-registry.php(8.26 KB)
ðŸ“„ class-wp-block-bindings-source.php(2.92 KB)
ðŸ“„ class-wp-block-editor-context.php(1.32 KB)
ðŸ“„ class-wp-block-list.php(4.65 KB)
ðŸ“„ class-wp-block-metadata-registry.php(11.62 KB)
ðŸ“„ class-wp-block-parser-block.php(2.5 KB)
ðŸ“„ class-wp-block-parser-frame.php(1.97 KB)
ðŸ“„ class-wp-block-parser.php(11.26 KB)
ðŸ“„ class-wp-block-pattern-categories-registry.php(5.25 KB)
ðŸ“„ class-wp-block-patterns-registry.php(10.53 KB)
ðŸ“„ class-wp-block-styles-registry.php(6.25 KB)
ðŸ“„ class-wp-block-supports.php(5.49 KB)
ðŸ“„ class-wp-block-template.php(1.99 KB)
ðŸ“„ class-wp-block-templates-registry.php(7.06 KB)
ðŸ“„ class-wp-block-type-registry.php(4.9 KB)
ðŸ“„ class-wp-block-type.php(16.86 KB)
ðŸ“„ class-wp-block.php(22.5 KB)
ðŸ“„ class-wp-classic-to-block-menu-converter.php(3.99 KB)
ðŸ“„ class-wp-comment-query.php(47.26 KB)
ðŸ“„ class-wp-comment.php(9.22 KB)
ðŸ“„ class-wp-customize-control.php(25.25 KB)
ðŸ“„ class-wp-customize-manager.php(197.84 KB)
ðŸ“„ class-wp-customize-nav-menus.php(56.07 KB)
ðŸ“„ class-wp-customize-panel.php(10.46 KB)
ðŸ“„ class-wp-customize-section.php(10.95 KB)
ðŸ“„ class-wp-customize-setting.php(29.26 KB)
ðŸ“„ class-wp-customize-widgets.php(70.52 KB)
ðŸ“„ class-wp-date-query.php(34.89 KB)
ðŸ“„ class-wp-dependencies.php(14.78 KB)
ðŸ“„ class-wp-dependency.php(2.57 KB)
ðŸ“„ class-wp-duotone.php(39.83 KB)
ðŸ“„ class-wp-editor.php(70.64 KB)
ðŸ“„ class-wp-embed.php(15.56 KB)
ðŸ“„ class-wp-error.php(7.33 KB)
ðŸ“„ class-wp-exception.php(253 B)
ðŸ“„ class-wp-fatal-error-handler.php(7.96 KB)
ðŸ“„ class-wp-feed-cache-transient.php(3.1 KB)
ðŸ“„ class-wp-feed-cache.php(969 B)
ðŸ“„ class-wp-hook.php(15.63 KB)
ðŸ“„ class-wp-http-cookie.php(7.22 KB)
ðŸ“„ class-wp-http-curl.php(12.25 KB)
ðŸ“„ class-wp-http-encoding.php(6.53 KB)
ðŸ“„ class-wp-http-ixr-client.php(3.42 KB)
ðŸ“„ class-wp-http-proxy.php(5.84 KB)
ðŸ“„ class-wp-http-requests-hooks.php(1.97 KB)
ðŸ“„ class-wp-http-requests-response.php(4.3 KB)
ðŸ“„ class-wp-http-response.php(2.91 KB)
ðŸ“„ class-wp-http-streams.php(16.46 KB)
ðŸ“„ class-wp-http.php(40.6 KB)
ðŸ“„ class-wp-image-editor-gd.php(19.69 KB)
ðŸ“„ class-wp-image-editor-imagick.php(33.92 KB)
ðŸ“„ class-wp-image-editor.php(17.12 KB)
ðŸ“„ class-wp-list-util.php(7.27 KB)
ðŸ“„ class-wp-locale-switcher.php(6.62 KB)
ðŸ“„ class-wp-locale.php(16.49 KB)
ðŸ“„ class-wp-matchesmapregex.php(1.79 KB)
ðŸ“„ class-wp-meta-query.php(29.82 KB)
ðŸ“„ class-wp-metadata-lazyloader.php(6.67 KB)
ðŸ“„ class-wp-navigation-fallback.php(9 KB)
ðŸ“„ class-wp-network-query.php(19.39 KB)
ðŸ“„ class-wp-network.php(12.01 KB)
ðŸ“„ class-wp-object-cache.php(17.11 KB)
ðŸ“„ class-wp-oembed-controller.php(6.74 KB)
ðŸ“„ class-wp-oembed.php(30.91 KB)
ðŸ“„ class-wp-paused-extensions-storage.php(4.99 KB)
ðŸ“„ class-wp-phpmailer.php(3.71 KB)
ðŸ“„ class-wp-plugin-dependencies.php(24.72 KB)
ðŸ“„ class-wp-post-type.php(29.96 KB)
ðŸ“„ class-wp-post.php(6.34 KB)
ðŸ“„ class-wp-query.php(154.32 KB)
ðŸ“„ class-wp-recovery-mode-cookie-service.php(6.72 KB)
ðŸ“„ class-wp-recovery-mode-email-service.php(10.92 KB)
ðŸ“„ class-wp-recovery-mode-key-service.php(4.77 KB)
ðŸ“„ class-wp-recovery-mode-link-service.php(3.38 KB)
ðŸ“„ class-wp-recovery-mode.php(11.18 KB)
ðŸ“„ class-wp-rewrite.php(62.2 KB)
ðŸ“„ class-wp-role.php(2.46 KB)
ðŸ“„ class-wp-roles.php(8.38 KB)
ðŸ“„ class-wp-script-modules.php(19.01 KB)
ðŸ“„ class-wp-scripts.php(27.68 KB)
ðŸ“„ class-wp-session-tokens.php(7.15 KB)
ðŸ“„ class-wp-simplepie-file.php(3.33 KB)
ðŸ“„ class-wp-simplepie-sanitize-kses.php(1.87 KB)
ðŸ“„ class-wp-site-query.php(30.88 KB)
ðŸ“„ class-wp-site.php(7.28 KB)
ðŸ“„ class-wp-speculation-rules.php(7.35 KB)
ðŸ“„ class-wp-styles.php(10.75 KB)
ðŸ“„ class-wp-tax-query.php(19.1 KB)
ðŸ“„ class-wp-taxonomy.php(18.12 KB)
ðŸ“„ class-wp-term-query.php(39.91 KB)
ðŸ“„ class-wp-term.php(5.17 KB)
ðŸ“„ class-wp-text-diff-renderer-inline.php(979 B)
ðŸ“„ class-wp-text-diff-renderer-table.php(18.44 KB)
ðŸ“„ class-wp-textdomain-registry.php(10.24 KB)
ðŸ“„ class-wp-theme-json-data.php(1.77 KB)
ðŸ“„ class-wp-theme-json-resolver.php(34.9 KB)
ðŸ“„ class-wp-theme-json-schema.php(7.19 KB)
ðŸ“„ class-wp-theme-json.php(159.71 KB)
ðŸ“„ class-wp-theme.php(64.27 KB)
ðŸ“„ class-wp-token-map.php(27.95 KB)
ðŸ“„ class-wp-url-pattern-prefixer.php(4.69 KB)
ðŸ“„ class-wp-user-meta-session-tokens.php(2.92 KB)
ðŸ“„ class-wp-user-query.php(42.63 KB)
ðŸ“„ class-wp-user-request.php(2.25 KB)
ðŸ“„ class-wp-user.php(22.46 KB)
ðŸ“„ class-wp-walker.php(13.01 KB)
ðŸ“„ class-wp-widget-factory.php(3.27 KB)
ðŸ“„ class-wp-widget.php(18 KB)
ðŸ“„ class-wp-xmlrpc-server.php(210.39 KB)
ðŸ“„ class-wp.php(25.7 KB)
ðŸ“„ class-wpdb.php(115.51 KB)
ðŸ“„ class.wp-dependencies.php(373 B)
ðŸ“„ class.wp-scripts.php(343 B)
ðŸ“„ class.wp-styles.php(338 B)
ðŸ“„ comment-template.php(100.47 KB)
ðŸ“„ comment.php(128.46 KB)
ðŸ“„ compat.php(15.99 KB)
ðŸ“„ cron.php(41.66 KB)
ðŸ“ css
ðŸ“ customize
ðŸ“„ date.php(400 B)
ðŸ“„ default-constants.php(11.1 KB)
ðŸ“„ default-filters.php(35.84 KB)
ðŸ“„ default-widgets.php(2.24 KB)
ðŸ“„ deprecated.php(187.07 KB)
ðŸ“„ embed-template.php(338 B)
ðŸ“„ embed.php(37.28 KB)
ðŸ“„ error-protection.php(4.02 KB)
ðŸ“„ error_log(503.15 KB)
ðŸ“„ feed-atom-comments.php(5.38 KB)
ðŸ“„ feed-atom.php(3.05 KB)
ðŸ“„ feed-rdf.php(2.61 KB)
ðŸ“„ feed-rss.php(1.16 KB)
ðŸ“„ feed-rss2-comments.php(4.04 KB)
ðŸ“„ feed-rss2.php(3.71 KB)
ðŸ“„ feed.php(22.86 KB)
ðŸ“ fonts
ðŸ“„ fonts.php(9.52 KB)
ðŸ“„ formatting.php(334.24 KB)
ðŸ“„ functions.php(280.81 KB)
ðŸ“„ functions.wp-scripts.php(14.22 KB)
ðŸ“„ functions.wp-styles.php(8.38 KB)
ðŸ“„ general-template.php(168.46 KB)
ðŸ“„ global-styles-and-settings.php(20.76 KB)
ðŸ“ html-api
ðŸ“„ http.php(24.72 KB)
ðŸ“„ https-detection.php(5.72 KB)
ðŸ“„ https-migration.php(4.63 KB)
ðŸ“ images
ðŸ“ interactivity-api
ðŸ“ js
ðŸ“„ kses.php(72.73 KB)
ðŸ“ l10n
ðŸ“„ l10n.php(66.92 KB)
ðŸ“„ link-template.php(154.1 KB)
ðŸ“„ load.php(55.12 KB)
ðŸ“„ locale.php(162 B)
ðŸ“„ media-template.php(61.58 KB)
ðŸ“„ media.php(215.12 KB)
ðŸ“„ meta.php(63.71 KB)
ðŸ“„ ms-blogs.php(25.24 KB)
ðŸ“„ ms-default-constants.php(4.81 KB)
ðŸ“„ ms-default-filters.php(6.48 KB)
ðŸ“„ ms-deprecated.php(21.25 KB)
ðŸ“„ ms-files.php(2.68 KB)
ðŸ“„ ms-functions.php(89.44 KB)
ðŸ“„ ms-load.php(19.42 KB)
ðŸ“„ ms-network.php(3.69 KB)
ðŸ“„ ms-settings.php(4.1 KB)
ðŸ“„ ms-site.php(40.35 KB)
ðŸ“„ nav-menu-template.php(25.38 KB)
ðŸ“„ nav-menu.php(43.33 KB)
ðŸ“„ option.php(100.65 KB)
ðŸ“ php-compat
ðŸ“„ pluggable-deprecated.php(6.18 KB)
ðŸ“„ pluggable.php(119.82 KB)
ðŸ“„ plugin.php(34.63 KB)
ðŸ“ pomo
ðŸ“„ post-formats.php(6.94 KB)
ðŸ“„ post-template.php(67.04 KB)
ðŸ“„ post-thumbnail-template.php(10.62 KB)
ðŸ“„ post.php(284.88 KB)
ðŸ“„ query.php(36.17 KB)
ðŸ“„ registration-functions.php(200 B)
ðŸ“„ registration.php(200 B)
ðŸ“ rest-api
ðŸ“„ rest-api.php(97.91 KB)
ðŸ“„ revision.php(30.02 KB)
ðŸ“„ rewrite.php(19.08 KB)
ðŸ“„ robots-template.php(5.06 KB)
ðŸ“„ rss-functions.php(255 B)
ðŸ“„ rss.php(22.57 KB)
ðŸ“„ script-loader.php(130.14 KB)
ðŸ“„ script-modules.php(7.53 KB)
ðŸ“„ session.php(258 B)
ðŸ“„ shortcodes.php(23.49 KB)
ðŸ“ sitemaps
ðŸ“„ sitemaps.php(3.16 KB)
ðŸ“ sodium_compat
ðŸ“„ speculative-loading.php(8.36 KB)
ðŸ“„ spl-autoload-compat.php(441 B)
ðŸ“ style-engine
ðŸ“„ style-engine.php(7.39 KB)
ðŸ“„ taxonomy.php(172.1 KB)
ðŸ“„ template-canvas.php(544 B)
ðŸ“„ template-loader.php(2.94 KB)
ðŸ“„ template.php(23.59 KB)
ðŸ“ theme-compat
ðŸ“„ theme-i18n.json(1.49 KB)
ðŸ“„ theme-previews.php(2.77 KB)
ðŸ“„ theme-templates.php(6.09 KB)
ðŸ“„ theme.json(8.5 KB)
ðŸ“„ theme.php(131.16 KB)
ðŸ“„ update.php(36.62 KB)
ðŸ“„ user.php(171.7 KB)
ðŸ“„ vars.php(6.41 KB)
ðŸ“„ version.php(1.06 KB)
ðŸ“ widgets
ðŸ“„ widgets.php(69.06 KB)
ðŸ“„ wp-db.php(445 B)
ðŸ“„ wp-diff.php(799 B)

Editing: class-wp-block-metadata-registry.php

<?php
/**
 * Block Metadata Registry
 *
 * @package WordPress
 * @subpackage Blocks
 * @since 6.7.0
 */

/**
 * Class used for managing block metadata collections.
 *
 * The WP_Block_Metadata_Registry allows plugins to register metadata for large
 * collections of blocks (e.g., 50-100+) using a single PHP file. This approach
 * reduces the need to read and decode multiple `block.json` files, enhancing
 * performance through opcode caching.
 *
 * @since 6.7.0
 */
class WP_Block_Metadata_Registry {

/**
	 * Container for storing block metadata collections.
	 *
	 * Each entry maps a base path to its corresponding metadata and callback.
	 *
	 * @since 6.7.0
	 * @var array<string, array<string, mixed>>
	 */
	private static $collections = array();

/**
	 * Caches the last matched collection path for performance optimization.
	 *
	 * @since 6.7.0
	 * @var string|null
	 */
	private static $last_matched_collection = null;

/**
	 * Stores the default allowed collection root paths.
	 *
	 * @since 6.7.2
	 * @var string[]|null
	 */
	private static $default_collection_roots = null;

/**
	 * Registers a block metadata collection.
	 *
	 * This method allows registering a collection of block metadata from a single
	 * manifest file, improving performance for large sets of blocks.
	 *
	 * The manifest file should be a PHP file that returns an associative array, where
	 * the keys are the block identifiers (without their namespace) and the values are
	 * the corresponding block metadata arrays. The block identifiers must match the
	 * parent directory name for the respective `block.json` file.
	 *
	 * Example manifest file structure:
	 * ```
	 * return array(
	 *     'example-block' => array(
	 *         'title' => 'Example Block',
	 *         'category' => 'widgets',
	 *         'icon' => 'smiley',
	 *         // ... other block metadata
	 *     ),
	 *     'another-block' => array(
	 *         'title' => 'Another Block',
	 *         'category' => 'formatting',
	 *         'icon' => 'star-filled',
	 *         // ... other block metadata
	 *     ),
	 *     // ... more block metadata entries
	 * );
	 * ```
	 *
	 * @since 6.7.0
	 *
	 * @param string $path     The absolute base path for the collection ( e.g., WP_PLUGIN_DIR . '/my-plugin/blocks/' ).
	 * @param string $manifest The absolute path to the manifest file containing the metadata collection.
	 * @return bool True if the collection was registered successfully, false otherwise.
	 */
	public static function register_collection( $path, $manifest ) {
		$path = rtrim( wp_normalize_path( $path ), '/' );

$collection_roots = self::get_default_collection_roots();

/**
		 * Filters the root directory paths for block metadata collections.
		 *
		 * Any block metadata collection that is registered must not use any of these paths, or any parent directory
		 * path of them. Most commonly, block metadata collections should reside within one of these paths, though in
		 * some scenarios they may also reside in entirely different directories (e.g. in case of symlinked plugins).
		 *
		 * Example:
		 * * It is allowed to register a collection with path `WP_PLUGIN_DIR . '/my-plugin'`.
		 * * It is not allowed to register a collection with path `WP_PLUGIN_DIR`.
		 * * It is not allowed to register a collection with path `dirname( WP_PLUGIN_DIR )`.
		 *
		 * The default list encompasses the `wp-includes` directory, as well as the root directories for plugins,
		 * must-use plugins, and themes. This filter can be used to expand the list, e.g. to custom directories that
		 * contain symlinked plugins, so that these root directories cannot be used themselves for a block metadata
		 * collection either.
		 *
		 * @since 6.7.2
		 *
		 * @param string[] $collection_roots List of allowed metadata collection root paths.
		 */
		$collection_roots = apply_filters( 'wp_allowed_block_metadata_collection_roots', $collection_roots );

$collection_roots = array_unique(
			array_map(
				static function ( $allowed_root ) {
					return rtrim( wp_normalize_path( $allowed_root ), '/' );
				},
				$collection_roots
			)
		);

// Check if the path is valid:
		if ( ! self::is_valid_collection_path( $path, $collection_roots ) ) {
			_doing_it_wrong(
				__METHOD__,
				sprintf(
					/* translators: %s: list of allowed collection roots */
					__( 'Block metadata collections cannot be registered as one of the following directories or their parent directories: %s' ),
					esc_html( implode( wp_get_list_item_separator(), $collection_roots ) )
				),
				'6.7.2'
			);
			return false;
		}

if ( ! file_exists( $manifest ) ) {
			_doing_it_wrong(
				__METHOD__,
				__( 'The specified manifest file does not exist.' ),
				'6.7.0'
			);
			return false;
		}

self::$collections[ $path ] = array(
			'manifest' => $manifest,
			'metadata' => null,
		);

return true;
	}

/**
	 * Retrieves block metadata for a given block within a specific collection.
	 *
	 * This method uses the registered collections to efficiently lookup
	 * block metadata without reading individual `block.json` files.
	 *
	 * @since 6.7.0
	 *
	 * @param string $file_or_folder The path to the file or folder containing the block.
	 * @return array|null The block metadata for the block, or null if not found.
	 */
	public static function get_metadata( $file_or_folder ) {
		$file_or_folder = wp_normalize_path( $file_or_folder );

$path = self::find_collection_path( $file_or_folder );
		if ( ! $path ) {
			return null;
		}

$collection = &self::$collections[ $path ];

if ( null === $collection['metadata'] ) {
			// Load the manifest file if not already loaded
			$collection['metadata'] = require $collection['manifest'];
		}

// Get the block name from the path.
		$block_name = self::default_identifier_callback( $file_or_folder );

return isset( $collection['metadata'][ $block_name ] ) ? $collection['metadata'][ $block_name ] : null;
	}

/**
	 * Gets the list of absolute paths to all block metadata files that are part of the given collection.
	 *
	 * For instance, if a block metadata collection is registered with path `WP_PLUGIN_DIR . '/my-plugin/blocks/'`,
	 * and the manifest file includes metadata for two blocks `'block-a'` and `'block-b'`, the result of this method
	 * will be an array containing:
	 * * `WP_PLUGIN_DIR . '/my-plugin/blocks/block-a/block.json'`
	 * * `WP_PLUGIN_DIR . '/my-plugin/blocks/block-b/block.json'`
	 *
	 * @since 6.8.0
	 *
	 * @param string $path The absolute base path for a previously registered collection.
	 * @return string[] List of block metadata file paths, or an empty array if the given `$path` is invalid.
	 */
	public static function get_collection_block_metadata_files( $path ) {
		$path = rtrim( wp_normalize_path( $path ), '/' );

if ( ! isset( self::$collections[ $path ] ) ) {
			_doing_it_wrong(
				__METHOD__,
				__( 'No registered block metadata collection was found for the provided path.' ),
				'6.8.0'
			);
			return array();
		}

$collection = &self::$collections[ $path ];

if ( null === $collection['metadata'] ) {
			// Load the manifest file if not already loaded.
			$collection['metadata'] = require $collection['manifest'];
		}

return array_map(
			// No normalization necessary since `$path` is already normalized and `$block_name` is just a folder name.
			static function ( $block_name ) use ( $path ) {
				return "{$path}/{$block_name}/block.json";
			},
			array_keys( $collection['metadata'] )
		);
	}

/**
	 * Finds the collection path for a given file or folder.
	 *
	 * @since 6.7.0
	 *
	 * @param string $file_or_folder The normalized path to the file or folder.
	 * @return string|null The normalized collection path if found, or null if not found.
	 */
	private static function find_collection_path( $file_or_folder ) {
		if ( empty( $file_or_folder ) ) {
			return null;
		}

// Check the last matched collection first, since block registration usually happens in batches per plugin or theme.
		$path = rtrim( $file_or_folder, '/' );
		if ( self::$last_matched_collection && str_starts_with( $path, self::$last_matched_collection ) ) {
			return self::$last_matched_collection;
		}

$collection_paths = array_keys( self::$collections );
		foreach ( $collection_paths as $collection_path ) {
			if ( str_starts_with( $path, $collection_path ) ) {
				self::$last_matched_collection = $collection_path;
				return $collection_path;
			}
		}
		return null;
	}

/**
	 * Checks if metadata exists for a given block name in a specific collection.
	 *
	 * @since 6.7.0
	 *
	 * @param string $file_or_folder The path to the file or folder containing the block metadata.
	 * @return bool True if metadata exists for the block, false otherwise.
	 */
	public static function has_metadata( $file_or_folder ) {
		return null !== self::get_metadata( $file_or_folder );
	}

/**
	 * Default identifier function to determine the block identifier from a given path.
	 *
	 * This function extracts the block identifier from the path:
	 * - For 'block.json' files, it uses the parent directory name.
	 * - For directories, it uses the directory name itself.
	 * - For empty paths, it returns an empty string.
	 *
	 * For example:
	 * - Path: '/wp-content/plugins/my-plugin/blocks/example/block.json'
	 *   Identifier: 'example'
	 * - Path: '/wp-content/plugins/my-plugin/blocks/another-block'
	 *   Identifier: 'another-block'
	 *
	 * This default behavior matches the standard WordPress block structure.
	 *
	 * @since 6.7.0
	 *
	 * @param string $path The normalized file or folder path to determine the block identifier from.
	 * @return string The block identifier, or an empty string if the path is empty.
	 */
	private static function default_identifier_callback( $path ) {
		// Ensure $path is not empty to prevent unexpected behavior.
		if ( empty( $path ) ) {
			return '';
		}

if ( str_ends_with( $path, 'block.json' ) ) {
			// Return the parent directory name if it's a block.json file.
			return basename( dirname( $path ) );
		}

// Otherwise, assume it's a directory and return its name.
		return basename( $path );
	}

/**
	 * Checks whether the given block metadata collection path is valid against the list of collection roots.
	 *
	 * @since 6.7.2
	 *
	 * @param string   $path             Normalized block metadata collection path, without trailing slash.
	 * @param string[] $collection_roots List of normalized collection root paths, without trailing slashes.
	 * @return bool True if the path is allowed, false otherwise.
	 */
	private static function is_valid_collection_path( $path, $collection_roots ) {
		foreach ( $collection_roots as $allowed_root ) {
			// If the path matches any root exactly, it is invalid.
			if ( $allowed_root === $path ) {
				return false;
			}

// If the path is a parent path of any of the roots, it is invalid.
			if ( str_starts_with( $allowed_root, $path ) ) {
				return false;
			}
		}

return true;
	}

/**
	 * Gets the default collection root directory paths.
	 *
	 * @since 6.7.2
	 *
	 * @return string[] List of directory paths within which metadata collections are allowed.
	 */
	private static function get_default_collection_roots() {
		if ( isset( self::$default_collection_roots ) ) {
			return self::$default_collection_roots;
		}

$collection_roots = array(
			wp_normalize_path( ABSPATH . WPINC ),
			wp_normalize_path( WP_CONTENT_DIR ),
			wp_normalize_path( WPMU_PLUGIN_DIR ),
			wp_normalize_path( WP_PLUGIN_DIR ),
		);

$theme_roots = get_theme_roots();
		if ( ! is_array( $theme_roots ) ) {
			$theme_roots = array( $theme_roots );
		}
		foreach ( $theme_roots as $theme_root ) {
			$collection_roots[] = trailingslashit( wp_normalize_path( WP_CONTENT_DIR ) ) . ltrim( wp_normalize_path( $theme_root ), '/' );
		}

self::$default_collection_roots = array_unique( $collection_roots );
		return self::$default_collection_roots;
	}
}

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