Title: wp-includes/blocks.php | Developer.WordPress.org --- # File: wp-includes/blocks.php * function[_wp_apply_block_content_filters()](https://developer.wordpress.org/reference/functions/_wp_apply_block_content_filters/) * Applies standard content filters similar to the ‘the_content’ filter. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_wp_apply_block_content_filters/#used-by) | Uses [7 functions](https://developer.wordpress.org/reference/functions/_wp_apply_block_content_filters/#uses) | Source: [wp-includes/blocks.php:2650](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L2650-L2674) * function[_wp_enqueue_auto_register_blocks()](https://developer.wordpress.org/reference/functions/_wp_enqueue_auto_register_blocks/) * Exposes blocks with autoRegister flag for ServerSideRender in the editor. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_wp_enqueue_auto_register_blocks/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/_wp_enqueue_auto_register_blocks/#uses) | Source: [wp-includes/blocks.php:3300](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L3300-L3317) * function[apply_block_hooks_to_content_from_post_object()](https://developer.wordpress.org/reference/functions/apply_block_hooks_to_content_from_post_object/) * Run the Block Hooks algorithm on a post object’s content. * Used by [1 function](https://developer.wordpress.org/reference/functions/apply_block_hooks_to_content_from_post_object/#used-by) | Uses [10 functions](https://developer.wordpress.org/reference/functions/apply_block_hooks_to_content_from_post_object/#uses) | Source: [wp-includes/blocks.php:1274](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1274-L1384) * function[wp_register_block_types_from_metadata_collection()](https://developer.wordpress.org/reference/functions/wp_register_block_types_from_metadata_collection/) * Registers all block types from a block metadata collection. * Used by [0 functions](https://developer.wordpress.org/reference/functions/wp_register_block_types_from_metadata_collection/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/wp_register_block_types_from_metadata_collection/#uses) | Source: [wp-includes/blocks.php:473](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L473-L482) * function[extract_serialized_parent_block()](https://developer.wordpress.org/reference/functions/extract_serialized_parent_block/) * Accepts the serialized markup of a block and its inner blocks, and returns serialized markup of the wrapper block. * Used by [2 functions](https://developer.wordpress.org/reference/functions/extract_serialized_parent_block/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/extract_serialized_parent_block/#uses) | Source: [wp-includes/blocks.php:1412](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1412-L1416) * function[wp_register_block_metadata_collection()](https://developer.wordpress.org/reference/functions/wp_register_block_metadata_collection/) * Registers a block metadata collection. * Used by [1 function](https://developer.wordpress.org/reference/functions/wp_register_block_metadata_collection/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/wp_register_block_metadata_collection/#uses) | Source: [wp-includes/blocks.php:496](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L496-L498) * function[filter_block_core_template_part_attributes()](https://developer.wordpress.org/reference/functions/filter_block_core_template_part_attributes/) * Sanitizes the value of the Template Part block’s `tagName` attribute. * Used by [1 function](https://developer.wordpress.org/reference/functions/filter_block_core_template_part_attributes/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/filter_block_core_template_part_attributes/#uses) | Source: [wp-includes/blocks.php:2226](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L2226-L2234) * function[resolve_pattern_blocks()](https://developer.wordpress.org/reference/functions/resolve_pattern_blocks/) * Replaces patterns in a block tree with their content. * Used by [3 functions](https://developer.wordpress.org/reference/functions/resolve_pattern_blocks/#used-by) | Uses [4 functions](https://developer.wordpress.org/reference/functions/resolve_pattern_blocks/#uses) | Source: [wp-includes/blocks.php:1935](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1935-L2033) * function[insert_hooked_blocks_into_rest_response()](https://developer.wordpress.org/reference/functions/insert_hooked_blocks_into_rest_response/) * Hooks into the REST API response for the Posts endpoint and adds the first and last inner blocks. * Used by [1 function](https://developer.wordpress.org/reference/functions/insert_hooked_blocks_into_rest_response/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/insert_hooked_blocks_into_rest_response/#uses) | Source: [wp-includes/blocks.php:1537](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1537-L1577) * function[apply_block_hooks_to_content()](https://developer.wordpress.org/reference/functions/apply_block_hooks_to_content/) * Runs the hooked blocks algorithm on the given content. * Used by [9 functions](https://developer.wordpress.org/reference/functions/apply_block_hooks_to_content/#used-by) | Uses [12 functions](https://developer.wordpress.org/reference/functions/apply_block_hooks_to_content/#uses) | Source: [wp-includes/blocks.php:1162](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1162-L1248) * function[remove_serialized_parent_block()](https://developer.wordpress.org/reference/functions/remove_serialized_parent_block/) * Accepts the serialized markup of a block and its inner blocks, and returns serialized markup of the inner blocks. * Used by [5 functions](https://developer.wordpress.org/reference/functions/remove_serialized_parent_block/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/remove_serialized_parent_block/#uses) | Source: [wp-includes/blocks.php:1395](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1395-L1399) * function[update_ignored_hooked_blocks_postmeta()](https://developer.wordpress.org/reference/functions/update_ignored_hooked_blocks_postmeta/) * Updates the wp_postmeta with the list of ignored hooked blocks where the inner blocks are stored as post content. * Used by [1 function](https://developer.wordpress.org/reference/functions/update_ignored_hooked_blocks_postmeta/#used-by) | Uses [7 functions](https://developer.wordpress.org/reference/functions/update_ignored_hooked_blocks_postmeta/#uses) | Source: [wp-includes/blocks.php:1429](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1429-L1501) * function[insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata()](https://developer.wordpress.org/reference/functions/insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata/) * Returns the markup for blocks hooked to the given anchor block in a specific relative position and then adds a list of hooked block types to an anchor block’s ignored hooked block types. * Used by [0 functions](https://developer.wordpress.org/reference/functions/insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata/#uses) | Source: [wp-includes/blocks.php:1519](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1519-L1524) * hook[hooked_block_{$hooked_block_type}](https://developer.wordpress.org/reference/hooks/hooked_block_hooked_block_type/) * Filters the parsed block array for a given hooked block. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/hooked_block_hooked_block_type/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/hooked_block_hooked_block_type/#uses) | Source: [wp-includes/blocks.php:1066](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1066-L1066) * function[set_ignored_hooked_blocks_metadata()](https://developer.wordpress.org/reference/functions/set_ignored_hooked_blocks_metadata/) * Adds a list of hooked block types to an anchor block’s ignored hooked block types. * Used by [1 function](https://developer.wordpress.org/reference/functions/set_ignored_hooked_blocks_metadata/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/set_ignored_hooked_blocks_metadata/#uses) | Source: [wp-includes/blocks.php:1100](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1100-L1142) * hook[hooked_block](https://developer.wordpress.org/reference/hooks/hooked_block/) * Filters the parsed block array for a given hooked block. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/hooked_block/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/hooked_block/#uses) | Source: [wp-includes/blocks.php:1050](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1050-L1050) * function[insert_hooked_blocks()](https://developer.wordpress.org/reference/functions/insert_hooked_blocks/) * Returns the markup for blocks hooked to the given anchor block in a specific relative position. * Used by [1 function](https://developer.wordpress.org/reference/functions/insert_hooked_blocks/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/insert_hooked_blocks/#uses) | Source: [wp-includes/blocks.php:1008](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1008-L1083) * function[register_block_script_module_id()](https://developer.wordpress.org/reference/functions/register_block_script_module_id/) * Finds a script module ID for the selected block metadata field. * Used by [1 function](https://developer.wordpress.org/reference/functions/register_block_script_module_id/#used-by) | Uses [6 functions](https://developer.wordpress.org/reference/functions/register_block_script_module_id/#uses) | Source: [wp-includes/blocks.php:169](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L169-L231) * function[_wp_footnotes_kses_init()](https://developer.wordpress.org/reference/functions/_wp_footnotes_kses_init/) * Registers the filter of footnotes meta field if the user does not have `unfiltered_html` capability. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_wp_footnotes_kses_init/#used-by) | Uses [3 functions](https://developer.wordpress.org/reference/functions/_wp_footnotes_kses_init/#uses) | Source: [wp-includes/blocks.php:3262](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L3262-L3267) * function[_wp_footnotes_force_filtered_html_on_import_filter()](https://developer.wordpress.org/reference/functions/_wp_footnotes_force_filtered_html_on_import_filter/) * Initializes the filters for footnotes meta field when imported data should be filtered. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_wp_footnotes_force_filtered_html_on_import_filter/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/_wp_footnotes_force_filtered_html_on_import_filter/#uses) | Source: [wp-includes/blocks.php:3283](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L3283-L3289) * function[_wp_footnotes_remove_filters()](https://developer.wordpress.org/reference/functions/_wp_footnotes_remove_filters/) * Removes the filters for footnotes meta field. * Used by [1 function](https://developer.wordpress.org/reference/functions/_wp_footnotes_remove_filters/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/_wp_footnotes_remove_filters/#uses) | Source: [wp-includes/blocks.php:3252](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L3252-L3254) * function[_wp_footnotes_kses_init_filters()](https://developer.wordpress.org/reference/functions/_wp_footnotes_kses_init_filters/) * Adds the filters for footnotes meta field. * Used by [2 functions](https://developer.wordpress.org/reference/functions/_wp_footnotes_kses_init_filters/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/_wp_footnotes_kses_init_filters/#uses) | Source: [wp-includes/blocks.php:3242](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L3242-L3244) * function[_wp_filter_post_meta_footnotes()](https://developer.wordpress.org/reference/functions/_wp_filter_post_meta_footnotes/) * Strips all HTML from the content of footnotes, and sanitizes the ID. * Used by [0 functions](https://developer.wordpress.org/reference/functions/_wp_filter_post_meta_footnotes/#used-by) | Uses [5 functions](https://developer.wordpress.org/reference/functions/_wp_filter_post_meta_footnotes/#uses) | Source: [wp-includes/blocks.php:3219](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L3219-L3234) * function[traverse_and_serialize_blocks()](https://developer.wordpress.org/reference/functions/traverse_and_serialize_blocks/) * Given an array of parsed block trees, applies callbacks before and after serializing them and returns their concatenated output. * Used by [2 functions](https://developer.wordpress.org/reference/functions/traverse_and_serialize_blocks/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/traverse_and_serialize_blocks/#uses) | Source: [wp-includes/blocks.php:2070](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L2070-L2105) * function[traverse_and_serialize_block()](https://developer.wordpress.org/reference/functions/traverse_and_serialize_block/) * Traverses a parsed block tree and applies callbacks before and after serializing it. * Used by [2 functions](https://developer.wordpress.org/reference/functions/traverse_and_serialize_block/#used-by) | Uses [2 functions](https://developer.wordpress.org/reference/functions/traverse_and_serialize_block/#uses) | Source: [wp-includes/blocks.php:1875](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1875-L1923) * function[make_after_block_visitor()](https://developer.wordpress.org/reference/functions/make_after_block_visitor/) * Returns a function that injects the hooked blocks after a given block. * Used by [1 function](https://developer.wordpress.org/reference/functions/make_after_block_visitor/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/functions/make_after_block_visitor/#uses) | Source: [wp-includes/blocks.php:1658](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1658-L1686) * hook[hooked_block_types](https://developer.wordpress.org/reference/hooks/hooked_block_types/) * Filters the list of hooked block types for a given anchor block type and relative position. * Used by [2 functions](https://developer.wordpress.org/reference/hooks/hooked_block_types/#used-by) | Uses [0 functions](https://developer.wordpress.org/reference/hooks/hooked_block_types/#uses) | Source: [wp-includes/blocks.php:1026](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1026-L1026) * function[make_before_block_visitor()](https://developer.wordpress.org/reference/functions/make_before_block_visitor/) * Returns a function that injects the theme attribute into, and hooked blocks before, a given block. * Used by [1 function](https://developer.wordpress.org/reference/functions/make_before_block_visitor/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/make_before_block_visitor/#uses) | Source: [wp-includes/blocks.php:1601](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L1601-L1634) * function[get_hooked_blocks()](https://developer.wordpress.org/reference/functions/get_hooked_blocks/) * Retrieves block types hooked into the given block, grouped by anchor block type and the relative position. * Used by [2 functions](https://developer.wordpress.org/reference/functions/get_hooked_blocks/#used-by) | Uses [1 function](https://developer.wordpress.org/reference/functions/get_hooked_blocks/#uses) | Source: [wp-includes/blocks.php:974](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L974-L993) * function[get_block_asset_url()](https://developer.wordpress.org/reference/functions/get_block_asset_url/) * Gets the URL to a block asset. * Used by [3 functions](https://developer.wordpress.org/reference/functions/get_block_asset_url/#used-by) | Uses [10 functions](https://developer.wordpress.org/reference/functions/get_block_asset_url/#uses) | Source: [wp-includes/blocks.php:97](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/blocks.php#L97-L136) 1 [2](https://developer.wordpress.org/reference/files/wp-includes/blocks.php/page/2/?output_format=md) [3](https://developer.wordpress.org/reference/files/wp-includes/blocks.php/page/3/?output_format=md) [Next Page](https://developer.wordpress.org/reference/files/wp-includes/blocks.php/page/2/?output_format=md)