How can errors and issues during database backup restoration be effectively troubleshooted in PHP?

Issue: Errors and issues during database backup restoration in PHP can be effectively troubleshooted by checking the backup file's integrity, ensuring proper permissions are set for the backup file, verifying database connection details, and logging any errors for debugging. 

// Check backup file integrity
if (!file_exists('backup.sql')) {
    die('Backup file not found');
}

// Ensure proper permissions
if (!is_readable('backup.sql')) {
    die('Backup file is not readable');
}

// Database connection details
$host = 'localhost';
$username = 'root';
$password = '';
$database = 'my_database';

// Connect to database
$conn = new mysqli($host, $username, $password, $database);
if ($conn->connect_error) {
    die('Connection failed: ' . $conn->connect_error);
}

// Restore backup
$restore = file_get_contents('backup.sql');
if ($conn->multi_query($restore) === TRUE) {
    echo 'Backup restored successfully';
} else {
    echo 'Error restoring backup: ' . $conn->error;
}

// Close connection
$conn->close();

Keywords

database backup restoration troubleshooting PHP errors issues

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