How to do a RedirectResponse with a destination query parameter

How to do a RedirectResponse with a destination query parameter

 

Drupal 8 and on, is well integrated with Symfony technology and object 

good example is the Response with a redirect

use Symfony\Component\HttpFoundation\RedirectResponse;

$target = 65; // a parameter you want to add
$url = Url::fromUri('internal:/node/add/page'); // choose a path
$link_options = array(
  'attributes' => array(
     'class' => array(
        'btn',
     ),
   ),
   'query' => array(
     'target' => $target
   )
);
$url->setOptions($link_options);
$destination = $url->toString();

$response = new RedirectResponse($destination);
$response->send();

 

$redirectURL = '/cart/add/p2';
return new RedirectResponse(base_path().$redirectURL);

you can also use Drupal HttpFoundation library

object: SecuredRedirectResponse

Provides a standard base class for safe redirects.

In case you want to redirect to external URLs use TrustedRedirectResponse.

For local URLs, we use LocalRedirectResponse which opts out of external redirects.

abstract class SecuredRedirectResponse
The HttpFoundation Component