wp_update_comment_count( int|null $post_id, bool $do_deferred = false ): bool|null

3071function wp_update_comment_count( $post_id, $do_deferred = false ) {3072	static $_deferred = array();3073 3074	if ( empty( $post_id ) && ! $do_deferred ) {3075		return false;3076	}3077 3078	if ( $do_deferred ) {3079		$_deferred = array_unique( $_deferred );3080		foreach ( $_deferred as $i => $_post_id ) {3081			wp_update_comment_count_now( $_post_id );3082			unset( $_deferred[ $i ] );3083			/** @todo Move this outside of the foreach and reset $_deferred to an array instead */3084		}3085	}3086 3087	if ( wp_defer_comment_counting() ) {3088		$_deferred[] = $post_id;3089		return true;3090	} elseif ( $post_id ) {3091		return wp_update_comment_count_now( $post_id );3092	}3093	return null;3094}