insert_hooked_blocks( array $parsed_anchor_block, string $relative_position, array $hooked_blocks, WP_Block_Template|WP_Post|array $context ): string

900function insert_hooked_blocks( &$parsed_anchor_block, $relative_position, $hooked_blocks, $context ) {901	$anchor_block_type  = $parsed_anchor_block['blockName'];902	$hooked_block_types = isset( $hooked_blocks[ $anchor_block_type ][ $relative_position ] )903		? $hooked_blocks[ $anchor_block_type ][ $relative_position ]904		: array();905 906	/**907	 * Filters the list of hooked block types for a given anchor block type and relative position.908	 *909	 * @since 6.4.0910	 *911	 * @param string[]                        $hooked_block_types The list of hooked block types.912	 * @param string                          $relative_position  The relative position of the hooked blocks.913	 *                                                            Can be one of 'before', 'after', 'first_child', or 'last_child'.914	 * @param string                          $anchor_block_type  The anchor block type.915	 * @param WP_Block_Template|WP_Post|array $context            The block template, template part, `wp_navigation` post type,916	 *                                                            or pattern that the anchor block belongs to.917	 */918	$hooked_block_types = apply_filters( 'hooked_block_types', $hooked_block_types, $relative_position, $anchor_block_type, $context );919 920	$markup = '';921	foreach ( $hooked_block_types as $hooked_block_type ) {922		$parsed_hooked_block = array(923			'blockName'    => $hooked_block_type,924			'attrs'        => array(),925			'innerBlocks'  => array(),926			'innerContent' => array(),927		);928 929		/**930		 * Filters the parsed block array for a given hooked block.931		 *932		 * @since 6.5.0933		 *934		 * @param array|null                      $parsed_hooked_block The parsed block array for the given hooked block type, or null to suppress the block.935		 * @param string                          $hooked_block_type   The hooked block type name.936		 * @param string                          $relative_position   The relative position of the hooked block.937		 * @param array                           $parsed_anchor_block The anchor block, in parsed block array format.938		 * @param WP_Block_Template|WP_Post|array $context             The block template, template part, `wp_navigation` post type,939		 *                                                             or pattern that the anchor block belongs to.940		 */941		$parsed_hooked_block = apply_filters( 'hooked_block', $parsed_hooked_block, $hooked_block_type, $relative_position, $parsed_anchor_block, $context );942 943		/**944		 * Filters the parsed block array for a given hooked block.945		 *946		 * The dynamic portion of the hook name, `$hooked_block_type`, refers to the block type name of the specific hooked block.947		 *948		 * @since 6.5.0949		 *950		 * @param array|null                      $parsed_hooked_block The parsed block array for the given hooked block type, or null to suppress the block.951		 * @param string                          $hooked_block_type   The hooked block type name.952		 * @param string                          $relative_position   The relative position of the hooked block.953		 * @param array                           $parsed_anchor_block The anchor block, in parsed block array format.954		 * @param WP_Block_Template|WP_Post|array $context             The block template, template part, `wp_navigation` post type,955		 *                                                             or pattern that the anchor block belongs to.956		 */957		$parsed_hooked_block = apply_filters( "hooked_block_{$hooked_block_type}", $parsed_hooked_block, $hooked_block_type, $relative_position, $parsed_anchor_block, $context );958 959		if ( null === $parsed_hooked_block ) {960			continue;961		}962 963		// It's possible that the filter returned a block of a different type, so we explicitly964		// look for the original `$hooked_block_type` in the `ignoredHookedBlocks` metadata.965		if (966			! isset( $parsed_anchor_block['attrs']['metadata']['ignoredHookedBlocks'] ) ||967			! in_array( $hooked_block_type, $parsed_anchor_block['attrs']['metadata']['ignoredHookedBlocks'], true )968		) {969			$markup .= serialize_block( $parsed_hooked_block );970		}971	}972 973	return $markup;974}