0 of 0   
^ null

  0 of 0   
^ null

  0 of 0   
^ null

  0 of 0   
^ null
Failed to start the session because headers have already been sent by "/home/dataspk/www/test2/vendor/symfony/var-dumper/Dumper/AbstractDumper.php" at line 180. (500 Internal Server Error)

Symfony Exception

Symfony Docs

RuntimeException

HTTP 500 Internal Server Error

Failed to start the session because headers have already been sent by "/home/dataspk/www/test2/vendor/symfony/var-dumper/Dumper/AbstractDumper.php" at line 180.

RuntimeException

in vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php (line 145)
  1.         if (\PHP_SESSION_ACTIVE === session_status()) {
  2.             throw new \RuntimeException('Failed to start the session: already started by PHP.');
  3.         }
  5.         if (filter_var(ini_get('session.use_cookies'), \FILTER_VALIDATE_BOOLEAN) && headers_sent($file, $line)) {
  6.             throw new \RuntimeException(sprintf('Failed to start the session because headers have already been sent by "%s" at line %d.', $file, $line));
  7.         }
  9.         // ok to try and start the session
  10.         if (!session_start()) {
  11.             throw new \RuntimeException('Failed to start the session.');
in vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php -> start (line 316)
  1.         }
  3.         if (!$this->started && $this->saveHandler->isActive()) {
  4.             $this->loadSession();
  5.         } elseif (!$this->started) {
  6.             $this->start();
  7.         }
  9.         return $this->bags[$name];
  10.     }
in vendor/symfony/http-foundation/Session/Session.php -> getBag (line 261)
  1.     /**
  2.      * {@inheritdoc}
  3.      */
  4.     public function getBag(string $name)
  5.     {
  6.         $bag = $this->storage->getBag($name);
  8.         return method_exists($bag, 'getBag') ? $bag->getBag() : $bag;
  9.     }
  11.     /**
in vendor/symfony/http-foundation/Session/Session.php -> getBag (line 283)
  1.      *
  2.      * Note that this method was added to help with IDE autocompletion.
  3.      */
  4.     private function getAttributeBag(): AttributeBagInterface
  5.     {
  6.         return $this->getBag($this->attributeName);
  7.     }
  8. }
in vendor/symfony/http-foundation/Session/Session.php -> getAttributeBag (line 77)
  1.     /**
  2.      * {@inheritdoc}
  3.      */
  4.     public function get(string $name, $default = null)
  5.     {
  6.         return $this->getAttributeBag()->get($name, $default);
  7.     }
  9.     /**
  10.      * {@inheritdoc}
  11.      */
in vendor/symfony/security-http/Authentication/AuthenticationUtils.php -> get (line 67)
  2.         if ($request->attributes->has(Security::LAST_USERNAME)) {
  3.             return $request->attributes->get(Security::LAST_USERNAME, '');
  4.         }
  6.         return $request->hasSession() ? $request->getSession()->get(Security::LAST_USERNAME, '') : '';
  7.     }
  9.     /**
  10.      * @throws \LogicException
  11.      */
AuthenticationUtils->getLastUsername() in src/Controller/FrontController.php (line 118)
  1.                 'lastUserName' => $util->getLastUsername(),
  2.                 'error' => $util->getLastAuthenticationError()
  3.             ]);
  4.             
  5.         return $this->render('front/connexion.html.twig', [
  6.             'lastUserName' => $util->getLastUsername(),
  7.             'error' => $util->getLastAuthenticationError()
  8.         ]);
  9.     }
  10.     
  11.     /**
in vendor/symfony/http-kernel/HttpKernel.php -> connexion (line 158)
  1.         $this->dispatcher->dispatch($event, KernelEvents::CONTROLLER_ARGUMENTS);
  2.         $controller = $event->getController();
  3.         $arguments = $event->getArguments();
  5.         // call controller
  6.         $response = $controller(...$arguments);
  8.         // view
  9.         if (!$response instanceof Response) {
  10.             $event = new ViewEvent($this, $request, $type, $response);
  11.             $this->dispatcher->dispatch($event, KernelEvents::VIEW);
in vendor/symfony/http-kernel/HttpKernel.php -> handleRaw (line 80)
  1.     public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)
  2.     {
  3.         $request->headers->set('X-Php-Ob-Level', (string) ob_get_level());
  5.         try {
  6.             return $this->handleRaw($request, $type);
  7.         } catch (\Exception $e) {
  8.             if ($e instanceof RequestExceptionInterface) {
  9.                 $e = new BadRequestHttpException($e->getMessage(), $e);
  10.             }
  11.             if (false === $catch) {
in vendor/symfony/http-kernel/Kernel.php -> handle (line 201)
  1.         $this->boot();
  2.         ++$this->requestStackSize;
  3.         $this->resetServices = true;
  5.         try {
  6.             return $this->getHttpKernel()->handle($request, $type, $catch);
  7.         } finally {
  8.             --$this->requestStackSize;
  9.         }
  10.     }
Kernel->handle(object(Request)) in public/index.php (line 25)
  1.     Request::setTrustedHosts([$trustedHosts]);
  2. }
  4. $kernel = new Kernel($_SERVER['APP_ENV'], (bool) $_SERVER['APP_DEBUG']);
  5. $request = Request::createFromGlobals();
  6. $response = $kernel->handle($request);
  7. $response->send();
  8. $kernel->terminate($request, $response);