| 1 | <?php | ||
| 9 | class NotificationController extends Controller | ||
| 10 | { | ||
| 11 | /** | ||
| 12 | * Undocumented function | ||
| 13 | * | ||
| 14 | * @return void | ||
| 15 | */ | ||
| 16 | public function index() | ||
| 20 | |||
| 21 | /** | ||
| 22 | * Mark a notification as read. | ||
| 23 | * | ||
| 24 | * @return \Illuminate\Http\JsonResponse | ||
| 25 | */ | ||
| 26 | public function markAsRead(Request $request): JsonResponse | ||
| 41 | |||
| 42 | /** | ||
| 43 | * Mark all notifications as read. | ||
| 44 | * | ||
| 45 | * @return \Illuminate\Http\JsonResponse | ||
| 46 | */ | ||
| 47 | public function markAllAsRead(): JsonResponse | ||
| 56 | } | ||
| 57 | 
If you access a property on an interface, you most likely code against a concrete implementation of the interface.
Available Fixes
Adding an additional type check:
Changing the type hint: