<?phpnamespace App\EventSubscriber;use Symfony\Component\EventDispatcher\EventSubscriberInterface;use Symfony\Component\Security\Http\Event\LogoutEvent;class AfterLogoutSubscriber implements EventSubscriberInterface{ public function onLogoutEvent(LogoutEvent $event): void { $request = $event->getRequest(); $session = $request->getSession(); $session->set('unauthentified', true); } public static function getSubscribedEvents(): array { return [ LogoutEvent::class => 'onLogoutEvent', ]; }}