\n"; exit(1); } $email = $argv[1]; try { $pdo = db(); $stmt = $pdo->prepare("UPDATE users SET role = 'admin' WHERE email = ?"); $stmt->execute([$email]); if ($stmt->rowCount() > 0) { echo "User '{$email}' has been promoted to admin.\n"; } else { echo "Could not find a user with email '{$email}'.\n"; } } catch (PDOException $e) { die("Database error: " . $e->getMessage() . "\n"); }