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Functions related to registering and parsing blocks.
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| remove_block_asset_path_prefix( $asset_handle_or_path ) X-Ref |
| Removes the block asset's path prefix if provided. param: string $asset_handle_or_path Asset handle or prefixed path. since: 5.5.0 return: string Path without the prefix or the original value. |
| generate_block_asset_handle( $block_name, $field_name ) X-Ref |
| Generates the name for an asset based on the name of the block and the field name provided. param: string $block_name Name of the block. param: string $field_name Name of the metadata field. since: 5.5.0 return: string Generated asset name for the block's field. |
| register_block_script_handle( $metadata, $field_name ) X-Ref |
| Finds a script handle for the selected block metadata field. It detects when a path to file was provided and finds a corresponding asset file with details necessary to register the script under automatically generated handle name. It returns unprocessed script handle otherwise. param: array $metadata Block metadata. param: string $field_name Field name to pick from metadata. since: 5.5.0 return: string|false Script handle provided directly or created through |
| register_block_style_handle( $metadata, $field_name ) X-Ref |
| Finds a style handle for the block metadata field. It detects when a path to file was provided and registers the style under automatically generated handle name. It returns unprocessed style handle otherwise. param: array $metadata Block metadata. param: string $field_name Field name to pick from metadata. since: 5.5.0 return: string|false Style handle provided directly or created through |
| get_block_metadata_i18n_schema() X-Ref |
| Gets i18n schema for block's metadata read from `block.json` file. since: 5.9.0 return: object The schema for block's metadata. |
| register_block_type_from_metadata( $file_or_folder, $args = array() X-Ref |
| Registers a block type from the metadata stored in the `block.json` file. param: string $file_or_folder Path to the JSON file with metadata definition for param: array $args Optional. Array of block type arguments. Accepts any public property since: 5.5.0 since: 5.7.0 Added support for `textdomain` field and i18n handling for all translatable fields. since: 5.9.0 Added support for `variations` and `viewScript` fields. return: WP_Block_Type|false The registered block type on success, or false on failure. |
| register_block_type( $block_type, $args = array() X-Ref |
| Registers a block type. The recommended way is to register a block type using the metadata stored in the `block.json` file. param: string|WP_Block_Type $block_type Block type name including namespace, or alternatively param: array $args Optional. Array of block type arguments. Accepts any public property since: 5.0.0 since: 5.8.0 First parameter now accepts a path to the `block.json` file. return: WP_Block_Type|false The registered block type on success, or false on failure. |
| unregister_block_type( $name ) X-Ref |
| Unregisters a block type. param: string|WP_Block_Type $name Block type name including namespace, or alternatively since: 5.0.0 return: WP_Block_Type|false The unregistered block type on success, or false on failure. |
| has_blocks( $post = null ) X-Ref |
| Determines whether a post or content string has blocks. This test optimizes for performance rather than strict accuracy, detecting the pattern of a block but not validating its structure. For strict accuracy, you should use the block parser on post content. param: int|string|WP_Post|null $post Optional. Post content, post ID, or post object. since: 5.0.0 return: bool Whether the post has blocks. |
| has_block( $block_name, $post = null ) X-Ref |
| Determines whether a $post or a string contains a specific block type. This test optimizes for performance rather than strict accuracy, detecting whether the block type exists but not validating its structure and not checking reusable blocks. For strict accuracy, you should use the block parser on post content. param: string $block_name Full block type to look for. param: int|string|WP_Post|null $post Optional. Post content, post ID, or post object. since: 5.0.0 return: bool Whether the post content contains the specified block. |
| get_dynamic_block_names() X-Ref |
| Returns an array of the names of all registered dynamic block types. since: 5.0.0 return: string[] Array of dynamic block names. |
| serialize_block_attributes( $block_attributes ) X-Ref |
| Given an array of attributes, returns a string in the serialized attributes format prepared for post content. The serialized result is a JSON-encoded string, with unicode escape sequence substitution for characters which might otherwise interfere with embedding the result in an HTML comment. This function must produce output that remains in sync with the output of the serializeAttributes JavaScript function in the block editor in order to ensure consistent operation between PHP and JavaScript. param: array $block_attributes Attributes object. since: 5.3.1 return: string Serialized attributes. |
| strip_core_block_namespace( $block_name = null ) X-Ref |
| Returns the block name to use for serialization. This will remove the default "core/" namespace from a block name. param: string $block_name Original block name. since: 5.3.1 return: string Block name to use for serialization. |
| get_comment_delimited_block_content( $block_name, $block_attributes, $block_content ) X-Ref |
| Returns the content of a block, including comment delimiters. param: string|null $block_name Block name. Null if the block name is unknown, param: array $block_attributes Block attributes. param: string $block_content Block save content. since: 5.3.1 return: string Comment-delimited block content. |
| serialize_block( $block ) X-Ref |
| Returns the content of a block, including comment delimiters, serializing all attributes from the given parsed block. This should be used when preparing a block to be saved to post content. Prefer `render_block` when preparing a block for display. Unlike `render_block`, this does not evaluate a block's `render_callback`, and will instead preserve the markup as parsed. param: array $block A representative array of a single parsed block object. See WP_Block_Parser_Block. since: 5.3.1 return: string String of rendered HTML. |
| serialize_blocks( $blocks ) X-Ref |
| Returns a joined string of the aggregate serialization of the given parsed blocks. param: array[] $blocks An array of representative arrays of parsed block objects. See serialize_block(). since: 5.3.1 return: string String of rendered HTML. |
| filter_block_content( $text, $allowed_html = 'post', $allowed_protocols = array() X-Ref |
| Filters and sanitizes block content to remove non-allowable HTML from parsed block attribute values. param: string $text Text that may contain block content. param: array[]|string $allowed_html An array of allowed HTML elements param: string[] $allowed_protocols Array of allowed URL protocols. since: 5.3.1 return: string The filtered and sanitized content result. |
| filter_block_kses( $block, $allowed_html, $allowed_protocols = array() X-Ref |
| Filters and sanitizes a parsed block to remove non-allowable HTML from block attribute values. param: WP_Block_Parser_Block $block The parsed block object. param: array[]|string $allowed_html An array of allowed HTML param: string[] $allowed_protocols Allowed URL protocols. since: 5.3.1 return: array The filtered and sanitized block object result. |
| filter_block_kses_value( $value, $allowed_html, $allowed_protocols = array() X-Ref |
| Filters and sanitizes a parsed block attribute value to remove non-allowable HTML. param: string[]|string $value The attribute value to filter. param: array[]|string $allowed_html An array of allowed HTML elements param: string[] $allowed_protocols Array of allowed URL protocols. since: 5.3.1 return: string[]|string The filtered and sanitized result. |
| excerpt_remove_blocks( $content ) X-Ref |
| Parses blocks out of a content string, and renders those appropriate for the excerpt. As the excerpt should be a small string of text relevant to the full post content, this function renders the blocks that are most likely to contain such text. param: string $content The content to parse. since: 5.0.0 return: string The parsed and filtered content. |
| _excerpt_render_inner_blocks( $parsed_block, $allowed_blocks ) X-Ref |
| Render inner blocks from the allowed wrapper blocks for generating an excerpt. param: array $parsed_block The parsed block. param: array $allowed_blocks The list of allowed inner blocks. since: 5.8.0 return: string The rendered inner blocks. |
| render_block( $parsed_block ) X-Ref |
| Renders a single block into a HTML string. param: array $parsed_block A single parsed block object. since: 5.0.0 return: string String of rendered HTML. |
| parse_blocks( $content ) X-Ref |
| Parses blocks out of a content string. param: string $content Post content. since: 5.0.0 return: array[] Array of parsed block objects. |
| do_blocks( $content ) X-Ref |
| Parses dynamic blocks out of `post_content` and re-renders them. param: string $content Post content. since: 5.0.0 return: string Updated post content. |
| _restore_wpautop_hook( $content ) X-Ref |
| If do_blocks() needs to remove wpautop() from the `the_content` filter, this re-adds it afterwards, for subsequent `the_content` usage. param: string $content The post content running through this filter. since: 5.0.0 return: string The unmodified content. |
| block_version( $content ) X-Ref |
| Returns the current version of the block format that the content string is using. If the string doesn't contain blocks, it returns 0. param: string $content Content to test. since: 5.0.0 return: int The block format version is 1 if the content contains one or more blocks, 0 otherwise. |
| register_block_style( $block_name, $style_properties ) X-Ref |
| Registers a new block style. param: string $block_name Block type name including namespace. param: array $style_properties Array containing the properties of the style name, since: 5.3.0 return: bool True if the block style was registered with success and false otherwise. |
| unregister_block_style( $block_name, $block_style_name ) X-Ref |
| Unregisters a block style. param: string $block_name Block type name including namespace. param: string $block_style_name Block style name. since: 5.3.0 return: bool True if the block style was unregistered with success and false otherwise. |
| block_has_support( $block_type, $feature, $default = false ) X-Ref |
| Checks whether the current block type supports the feature requested. param: WP_Block_Type $block_type Block type to check for support. param: string $feature Name of the feature to check support for. param: mixed $default Optional. Fallback value for feature support. Default false. since: 5.8.0 return: bool Whether the feature is supported. |
| wp_migrate_old_typography_shape( $metadata ) X-Ref |
| Converts typography keys declared under `supports.*` to `supports.typography.*`. Displays a `_doing_it_wrong()` notice when a block using the older format is detected. param: array $metadata Metadata for registering a block type. since: 5.8.0 return: array Filtered metadata for registering a block type. |
| build_query_vars_from_query_block( $block, $page ) X-Ref |
| Helper function that constructs a WP_Query args array from a `Query` block properties. It's used in Query Loop, Query Pagination Numbers and Query Pagination Next blocks. param: WP_Block $block Block instance. param: int $page Current query's page. since: 5.8.0 return: array Returns the constructed WP_Query arguments. |
| get_query_pagination_arrow( $block, $is_next ) X-Ref |
| Helper function that returns the proper pagination arrow HTML for `QueryPaginationNext` and `QueryPaginationPrevious` blocks based on the provided `paginationArrow` from `QueryPagination` context. It's used in QueryPaginationNext and QueryPaginationPrevious blocks. param: WP_Block $block Block instance. param: boolean $is_next Flag for handling `next/previous` blocks. since: 5.9.0 return: string|null The pagination arrow HTML or null if there is none. |
| _wp_multiple_block_styles( $metadata ) X-Ref |
| Allows multiple block styles. param: array $metadata Metadata for registering a block type. since: 5.9.0 return: array Metadata for registering a block type. |
| build_comment_query_vars_from_block( $block ) X-Ref |
| Helper function that constructs a comment query vars array from the passed block properties. It's used with the Comment Query Loop inner blocks. param: WP_Block $block Block instance. since: 6.0.0 return: array Returns the comment query parameters to use with the |
| get_comments_pagination_arrow( $block, $pagination_type = 'next' ) X-Ref |
| Helper function that returns the proper pagination arrow HTML for `CommentsPaginationNext` and `CommentsPaginationPrevious` blocks based on the provided `paginationArrow` from `CommentsPagination` context. It's used in CommentsPaginationNext and CommentsPaginationPrevious blocks. param: WP_Block $block Block instance. param: string $pagination_type Type of the arrow we will be rendering. since: 6.0.0 return: string|null The pagination arrow HTML or null if there is none. |
| Generated: Tue Jul 1 01:00:02 2025 | Cross-referenced by PHPXref 0.7.1 |