PHP를 사용하여 MySQL 및 PostgreSQL 데이터베이스로 자동 CSV 및 Excel 데이터 가져오기

<?php
// MySQL connection
$mysqlHost = 'localhost';
$mysqlDB = 'mysql_database';
$mysqlUser = 'mysql_user';
$mysqlPassword = 'mysql_password';

try {
    $mysqlConnection = new PDO("mysql:host=$mysqlHost;dbname=$mysqlDB", $mysqlUser, $mysqlPassword);
    $mysqlConnection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected to MySQL successfully.<br>";
} catch (PDOException $e) {
    die("MySQL connection failed: " . $e->getMessage());
}

// PostgreSQL connection
$pgHost = 'localhost';
$pgDB = 'pgsql_database';
$pgUser = 'pgsql_user';
$pgPassword = 'pgsql_password';

try {
    $pgConnection = new PDO("pgsql:host=$pgHost;dbname=$pgDB", $pgUser, $pgPassword);
    $pgConnection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    echo "Connected to PostgreSQL successfully.<br>";
} catch (PDOException $e) {
    die("PostgreSQL connection failed: " . $e->getMessage());
}
?>

<?php
require 'path/to/PHPExcel.php';

function readFileData($filePath) {
    $fileType = strtolower(pathinfo($filePath, PATHINFO_EXTENSION));

    if ($fileType === 'csv') {
        $data = [];
        if (($handle = fopen($filePath, 'r')) !== false) {
            while (($row = fgetcsv($handle, 1000, ',')) !== false) {
                $data[] = $row;
            }
            fclose($handle);
        }
        return $data;
    } elseif ($fileType === 'xls' || $fileType === 'xlsx') {
        $data = [];
        $excel = PHPExcel_IOFactory::load($filePath);
        $sheet = $excel->getActiveSheet();
        foreach ($sheet->getRowIterator() as $row) {
            $rowData = [];
            $cellIterator = $row->getCellIterator();
            $cellIterator->setIterateOnlyExistingCells(false);
            foreach ($cellIterator as $cell) {
                $rowData[] = $cell->getValue();
            }
            $data[] = $rowData;
        }
        return $data;
    } else {
        throw new Exception("Unsupported file format");
    }
}
?>

<?php
function insertIntoMySQL($mysqlConnection, $data) {
    $query = "INSERT INTO your_mysql_table (column1, column2, column3) VALUES (?, ?, ?)";
    $stmt = $mysqlConnection->prepare($query);
    foreach ($data as $row) {
        $stmt->execute($row);
    }
    echo "Data inserted into MySQL successfully.<br>";
}

function insertIntoPostgreSQL($pgConnection, $data) {
    $query = "INSERT INTO your_pg_table (column1, column2, column3) VALUES (?, ?, ?)";
    $stmt = $pgConnection->prepare($query);
    foreach ($data as $row) {
        $stmt->execute($row);
    }
    echo "Data inserted into PostgreSQL successfully.<br>";
}
?>

<?php
$filePath = 'path/to/yourfile.csv'; // or .xls / .xlsx
try {
    $data = readFileData($filePath);
    insertIntoMySQL($mysqlConnection, $data);
    insertIntoPostgreSQL($pgConnection, $data);
} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
}
?>