src/EventSubscriber/CsvHeaderSubscriber.php line 23

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  1. <?php
  3. namespace App\EventSubscriber;
  5. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  6. use Symfony\Component\HttpKernel\Event\ResponseEvent;
  7. use Symfony\Component\HttpKernel\KernelEvents;
  9. class CsvHeaderSubscriber implements EventSubscriberInterface
  10. {
  11.     /**
  12.      * @inheritDoc
  13.      */
  14.     public static function getSubscribedEvents()
  15.     {
  16.         return [
  17.             KernelEvents::RESPONSE => [
  18.                 ['addDownloadHeader', -2],
  19.             ],
  20.         ];
  21.     }
  23.     public function addDownloadHeader(ResponseEvent $event)
  24.     {
  25.         if (substr($event->getResponse()->headers->get('Content-Type'), 0, 8) == 'text/csv') {
  26.             $event->getResponse()->headers->set('Content-Disposition', 'attachment; filename="export.csv"');
  27.         }
  28.     }
  29. }