Zend\Mvc\MvcEvent::getResponse PHP Method

    public function getResponse()
    {
        return $this->response;
    }

 /**
  * @private
  * @param  MvcEvent $event
  * @return void
  */
 public function onError(MvcEvent $event)
 {
     // Do nothing if no error or if response is not HTTP response
     if (!$event->getParam('exception') instanceof UnauthorizedExceptionInterface || $event->getResult() instanceof HttpResponse || !$event->getResponse() instanceof HttpResponse) {
         return;
     }
     $router = $event->getRouter();
     if ($this->authenticationService->hasIdentity()) {
         if (!$this->options->getRedirectWhenConnected()) {
             return;
         }
         $redirectRoute = $this->options->getRedirectToRouteConnected();
     } else {
         $redirectRoute = $this->options->getRedirectToRouteDisconnected();
     }
     $uri = $router->assemble([], ['name' => $redirectRoute]);
     if ($this->options->getAppendPreviousUri()) {
         $redirectKey = $this->options->getPreviousUriQueryKey();
         $previousUri = $event->getRequest()->getUriString();
         $uri = $router->assemble([], ['name' => $redirectRoute, 'query' => [$redirectKey => $previousUri]]);
     }
     $response = $event->getResponse() ?: new HttpResponse();
     $response->getHeaders()->addHeaderLine('Location', $uri);
     $response->setStatusCode(302);
     $event->setResponse($response);
     $event->setResult($response);
 }