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   1  <?php
   2  /**
   3   * Server-side rendering of the `core/post-comments-count` block.
   4   *
   5   * @package WordPress
   6   */
   7  
   8  /**
   9   * Renders the `core/post-comments-count` block on the server.
  10   *
  11   * @since 6.9.0
  12   *
  13   * @param array    $attributes Block attributes.
  14   * @param string   $content    Block default content.
  15   * @param WP_Block $block      Block instance.
  16   * @return string Returns the filtered post comments count for the current post.
  17   */
  18  function render_block_core_post_comments_count( $attributes, $content, $block ) {
  19      if ( ! isset( $block->context['postId'] ) ) {
  20          return '';
  21      }
  22  
  23      $classes = '';
  24      if ( isset( $attributes['textAlign'] ) ) {
  25          $classes .= 'has-text-align-' . $attributes['textAlign'];
  26      }
  27  
  28      $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classes ) );
  29      return sprintf(
  30          '<div %1$s>%2$s</div>',
  31          $wrapper_attributes,
  32          get_comments_number( $block->context['postId'] )
  33      );
  34  }
  35  
  36  /**
  37   * Registers the `core/post-comments-count` block on the server.
  38   *
  39   * @since 6.9.0
  40   */
  41  function register_block_core_post_comments_count() {
  42      register_block_type_from_metadata(
  43          __DIR__ . '/post-comments-count',
  44          array(
  45              'render_callback' => 'render_block_core_post_comments_count',
  46          )
  47      );
  48  }
  49  add_action( 'init', 'register_block_core_post_comments_count' );