get_hooked_blocks

WordPress Version: 6.4

/**
 * Retrieves block types hooked into the given block, grouped by anchor block type and the relative position.
 *
 * @since 6.4.0
 *
 * @return array[] Array of block types grouped by anchor block type and the relative position.
 */
function get_hooked_blocks()
{
    $block_types = WP_Block_Type_Registry::get_instance()->get_all_registered();
    $hooked_blocks = array();
    foreach ($block_types as $block_type) {
        if (!$block_type instanceof WP_Block_Type || !is_array($block_type->block_hooks)) {
            continue;
        }
        foreach ($block_type->block_hooks as $anchor_block_type => $relative_position) {
            if (!isset($hooked_blocks[$anchor_block_type])) {
                $hooked_blocks[$anchor_block_type] = array();
            }
            if (!isset($hooked_blocks[$anchor_block_type][$relative_position])) {
                $hooked_blocks[$anchor_block_type][$relative_position] = array();
            }
            $hooked_blocks[$anchor_block_type][$relative_position][] = $block_type->name;
        }
    }
    return $hooked_blocks;
}