Psr7Middlewares\Utils\Helpers::isRedirect PHP Метод

    public static function isRedirect(ResponseInterface $response)
    {
        return in_array($response->getStatusCode(), [302, 301]);
    }

 /**
  * Execute the middleware.
  *
  * @param ServerRequestInterface $request
  * @param ResponseInterface      $response
  * @param callable               $next
  *
  * @return ResponseInterface
  */
 public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
 {
     if (!Middleware::hasAttribute($request, FormatNegotiator::KEY)) {
         throw new RuntimeException('This middleware needs FormatNegotiator executed before');
     }
     $ajax = Utils\Helpers::isAjax($request);
     $debugBar = $this->debugBar ?: new StandardDebugBar();
     //Redirection response
     if (Utils\Helpers::isRedirect($response)) {
         if ($debugBar->isDataPersisted() || session_status() === PHP_SESSION_ACTIVE) {
             $debugBar->stackData();
         }
         //Html response
     } elseif (FormatNegotiator::getFormat($request) === 'html') {
         $renderer = $debugBar->getJavascriptRenderer();
         ob_start();
         echo '<style>';
         $renderer->dumpCssAssets();
         echo '</style>';
         echo '<script>';
         $renderer->dumpJsAssets();
         echo '</script>';
         echo $renderer->render(!$ajax);
         $response = $this->inject($response, ob_get_clean());
         //Ajax response
     } elseif ($ajax && $this->captureAjax) {
         $headers = $debugBar->getDataAsHeaders();
         foreach ($headers as $name => $value) {
             $response = $response->withHeader($name, $value);
         }
     }
     return $next($request, $response);
 }