Deprecated: Constant E_STRICT is deprecated since 8.4, the error level was removed in /var/www/bet-analyzer/vendor/symfony/error-handler/ErrorHandler.php on line 58

Deprecated: Constant E_STRICT is deprecated since 8.4, the error level was removed in /var/www/bet-analyzer/vendor/symfony/error-handler/ErrorHandler.php on line 76
Failed to start the session because headers have already been sent by "/var/www/bet-analyzer/vendor/symfony/error-handler/ErrorHandler.php" at line 58. (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 "/var/www/bet-analyzer/vendor/symfony/error-handler/ErrorHandler.php" at line 58.

Exception

RuntimeException

in vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php (line 132)
  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_BOOL) && 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.         $sessionId = $_COOKIE[session_name()] ?? null;
  10.         /*
  11.          * Explanation of the session ID regular expression: `/^[a-zA-Z0-9,-]{22,250}$/`.
in vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php -> start (line 311)
  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 222)
  1.         $this->storage->registerBag(new SessionBagProxy($bag, $this->data, $this->usageIndex, $this->usageReporter));
  2.     }
  4.     public function getBag(string $name): SessionBagInterface
  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 242)
  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.      * @return void
  3.      */
  4.     public function set(string $name, mixed $value)
  5.     {
  6.         $this->getAttributeBag()->set($name, $value);
  7.     }
  9.     public function all(): array
  10.     {
  11.         return $this->getAttributeBag()->all();
in vendor/symfony/web-profiler-bundle/Controller/ProfilerController.php -> set (line 267)
  1.         $profileType = $request->query->get('type', 'request');
  3.         if (!$request->attributes->getBoolean('_stateless') && $request->hasSession()) {
  4.             $session = $request->getSession();
  6.             $session->set('_profiler_search_ip', $ip);
  7.             $session->set('_profiler_search_method', $method);
  8.             $session->set('_profiler_search_status_code', $statusCode);
  9.             $session->set('_profiler_search_url', $url);
  10.             $session->set('_profiler_search_start', $start);
  11.             $session->set('_profiler_search_end', $end);
in vendor/symfony/http-kernel/HttpKernel.php -> searchAction (line 181)
  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, $event);
  11.             $this->dispatcher->dispatch($event, KernelEvents::VIEW);
in vendor/symfony/http-kernel/HttpKernel.php -> handleRaw (line 76)
  1.         $request->headers->set('X-Php-Ob-Level', (string) ob_get_level());
  3.         $this->requestStack->push($request);
  4.         $response = null;
  5.         try {
  6.             return $response = $this->handleRaw($request, $type);
  7.         } catch (\Throwable $e) {
  8.             if ($e instanceof \Error && !$this->handleAllThrowables) {
  9.                 throw $e;
  10.             }
in vendor/symfony/http-kernel/Kernel.php -> handle (line 197)
  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.     }
in vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php -> handle (line 35)
  1.     ) {
  2.     }
  4.     public function run(): int
  5.     {
  6.         $response = $this->kernel->handle($this->request);
  8.         if (Kernel::VERSION_ID >= 60400) {
  9.             $response->send(false);
  11.             if (\function_exists('fastcgi_finish_request') && !$this->debug) {
in vendor/autoload_runtime.php -> run (line 29)
  1. $app = $app(...$args);
  3. exit(
  4.     $runtime
  5.         ->getRunner($app)
  6.         ->run()
  7. );
require_once('/var/www/bet-analyzer/vendor/autoload_runtime.php') in public/index.php (line 5)
  1. <?php
  3. use App\Kernel;
  5. require_once dirname(__DIR__).'/vendor/autoload_runtime.php';
  7. return function (array $context) {
  8.     return new Kernel($context['APP_ENV'], (bool) $context['APP_DEBUG']);
  9. };

Logs 1

Level Channel Message
CRITICAL 13:04:33 request Uncaught PHP Exception RuntimeException: "Failed to start the session because headers have already been sent by "/var/www/bet-analyzer/vendor/symfony/error-handler/ErrorHandler.php" at line 58." at NativeSessionStorage.php line 132 
{
    "exception": {}
}

Stack Trace

RuntimeException 
RuntimeException:
Failed to start the session because headers have already been sent by "/var/www/bet-analyzer/vendor/symfony/error-handler/ErrorHandler.php" at line 58.

  at vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php:132
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->start()
     (vendor/symfony/http-foundation/Session/Storage/NativeSessionStorage.php:311)
  at Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage->getBag('attributes')
     (vendor/symfony/http-foundation/Session/Session.php:222)
  at Symfony\Component\HttpFoundation\Session\Session->getBag('attributes')
     (vendor/symfony/http-foundation/Session/Session.php:242)
  at Symfony\Component\HttpFoundation\Session\Session->getAttributeBag()
     (vendor/symfony/http-foundation/Session/Session.php:77)
  at Symfony\Component\HttpFoundation\Session\Session->set('_profiler_search_ip', null)
     (vendor/symfony/web-profiler-bundle/Controller/ProfilerController.php:267)
  at Symfony\Bundle\WebProfilerBundle\Controller\ProfilerController->searchAction(object(Request))
     (vendor/symfony/http-kernel/HttpKernel.php:181)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
     (vendor/symfony/http-kernel/HttpKernel.php:76)
  at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
     (vendor/symfony/http-kernel/Kernel.php:197)
  at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
     (vendor/symfony/runtime/Runner/Symfony/HttpKernelRunner.php:35)
  at Symfony\Component\Runtime\Runner\Symfony\HttpKernelRunner->run()
     (vendor/autoload_runtime.php:29)
  at require_once('/var/www/bet-analyzer/vendor/autoload_runtime.php')
     (public/index.php:5)