ass']}->{$call['function']}" : $call['function'];
		}

		return join( ', ', $caller );
	}

	/**
	 * The database version number.
	 *
	 * @since 2.7.0
	 *
	 * @return false|string false on failure, version number on success
	 */
	function db_version() {
		return preg_replace( '/[^0-9.].*/', '', mysql_get_server_info( $this->dbh ) );
	}
}

?>