php mysql procedure获取多个结果集

protected function getRs($id) {
        $db = new mysqli(C("DB_HOST"), C("DB_USER"), C("DB_PWD"), C("DB_NAME"), C("DB_PORT"));
        if (mysqli_connect_errno())
            throw_exception(mysqli_connect_error());
        $sql = "call `room_match`.`wsKocMatchLoadResultHeader`($id);";
        $results = array();
        if ($db->multi_query($sql)) {
            do {
                $records = array();
                if ($result = $db->use_result()) {
                    while ($row = $result->fetch_array(MYSQLI_ASSOC)) {
                        $records[] = $row;
                    }
                    $result->close();
                }
                $results[] = $records;
            } while ($db->next_result());
        }
        $db->close();
        $this->assign("list1", $results[1]);
        $this->assign("list2", $results[2]);
        $this->assign("list3", $results[3]);
    }