false, 'message' => 'Missing parameter [[fcm_token]]'])); $fcmtoken = $_GET['fcm_token']; $user_key = generateRandomAuthKey(); $pdo = getDatabase(); $stmt = $pdo->prepare('INSERT INTO users (user_key, fcm_token, timestamp_accessed) VALUES (:key, :token, NOW())'); $stmt->execute(['key' => $user_key, 'token' => $fcmtoken]); $user_id = $pdo->lastInsertId('user_id'); echo json_encode(['success' => true, 'user_id' => $user_id, 'user_key' => $user_key, 'message' => 'new user registered']); return 0;