get_comment_pages_count

		if ( empty( $type ) ) {
			$type = 'comment';
		}

		$comments_by_type[ $type ][] = &$comments[ $i ];

		if ( 'trackback' === $type || 'pingback' === $type ) {
			$comments_by_type['pings'][] = &$comments[ $i ];
		}
	}

	return $comments_by_type;
}

/**
 * Calculate the total number of comment pages.
 *
 * @since 2.7.0
 *
 * @uses Walker_Comment
 *
 * @global WP_Query $wp_query WordPress Query object.
 *
 * @param WP_Comment[] $comments Optional. Array of WP_Comment objects. Defaults to `$wp_query->comments`.
 * @param int          $per_page Optional. Comments per page.
 * @param bool         $threaded Optional. Control over flat or threaded comments.
 * @return int Number of comment pages.
 */
function get_comment_pages_count( $comments = null, $per_page = null, $threaded = null ) {
	global $wp_query;

	if ( null === $comments && null === $per_page && null === $threaded && ! empty( $wp_query->max_num_comment_pages ) ) {
		return $wp_query->max_num_comment_pages;
	}

	if ( ( ! $comments || ! is_array( $comments ) ) && ! empty( $wp_query->comments ) ) {
		$comments = $wp_query->comments;
	}

	if ( empty( $comments ) ) {
		return 0;