<?php /** * Server-side rendering of the `core/block` block. * * @package WordPress */ /** * Renders the `core/block` block on server. * * @param array $attributes The block attributes. * * @return string Rendered HTML of the referenced block. */ function render_block_core_block( $attributes ) { static $seen_refs = array(); if ( empty( $attributes['ref'] ) ) { return ''; } $reusable_block = get_post( $attributes['ref'] ); if ( ! $reusable_block || 'wp_block' !== $reusable_block->post_type ) { return ''; } if ( isset( $seen_refs[ $attributes['ref'] ] ) ) { // WP_DEBUG_DISPLAY must only be honored when WP_DEBUG. This precedent // is set in `wp_debug_mode()`. $is_debug = defined( 'WP_DEBUG' ) && WP_DEBUG && defined( 'WP_DEBUG_DISPLAY' ) && WP_DEBUG_DISPLAY; return $is_debug ? // translators: Visible only in the front end, this warning takes the place of a faulty block. __( '[block rendering halted]' ) : ''; } if ( 'publish' !== $reusable_block->post_status || ! empty( $reusable_block->post_password ) ) { return ''; } $seen_refs[ $attributes['ref'] ] = true; $result = do_blocks( $reusable_block->post_content ); unset( $seen_refs[ $attributes['ref'] ] ); return $result; } /** * Registers the `core/block` block. */ function register_block_core_block() { register_block_type_from_metadata( __DIR__ . '/block', array( 'render_callback' => 'render_block_core_block', ) ); } add_action( 'init', 'register_block_core_block' );