How do you connect to a MySQL database using PDO? PDO का उपयोग करके MySQL database से कैसे connect करें?

Create a new PDO instance with a DSN (Data Source Name), username, password, and options. Always wrap it in try-catch since PDO throws exceptions on connection failure.

try {
    $pdo = new PDO(
        'mysql:host=localhost;dbname=mydb;charset=utf8mb4',
        'username',
        'password',
        [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
    );
} catch (PDOException $e) {
    die('Connection failed: ' . $e->getMessage());
}

Setting ERRMODE_EXCEPTION ensures database errors throw catchable exceptions instead of silent failures.