How do you handle database connection errors gracefully? Database connection errors को gracefully कैसे handle करें?

Set PDO to throw exceptions, catch them, log details for debugging, and show a generic message to users without exposing sensitive info.

try {
    $pdo = new PDO($dsn, $user, $pass, [
        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
    ]);
} catch (PDOException $e) {
    error_log('DB connection failed: ' . $e->getMessage());
    http_response_code(500);
    die('A database error occurred. Please try again later.');
}

Never echo raw exception messages to end users in production - they can reveal database structure, credentials, or file paths to attackers.