* Server-side rendering of the `core/post-comments-count` block.
* Renders the `core/post-comments-count` block on the server.
* @param array $attributes Block attributes.
* @param string $content Block default content.
* @param WP_Block $block Block instance.
* @return string Returns the filtered post comments count for the current post.
function render_block_core_post_comments_count( $attributes, $content, $block ) {
if ( ! isset( $block->context['postId'] ) ) {
if ( isset( $attributes['textAlign'] ) ) {
$classes .= 'has-text-align-' . $attributes['textAlign'];
$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classes ) );
get_comments_number( $block->context['postId'] )
* Registers the `core/post-comments-count` block on the server.
function register_block_core_post_comments_count() {
register_block_type_from_metadata(
__DIR__ . '/post-comments-count',
'render_callback' => 'render_block_core_post_comments_count',
add_action( 'init', 'register_block_core_post_comments_count' );