I'm attempting to retrieve a GET request variable for use in a twig template. For instance if you go to the page myurl.com/node/64?name=Dave I want the page to render


However I'm having trouble retrieving this variable. I've attempted


In my twig template but it turns up empty. How would I retrieve a GET variable from within a twig template?

2 Answers 2


You didn't say what template this is for, but app is not defined in any of the templates I have seen.

What you could do, is add a theme_preprocess_TEMPLATE function to include the GET params. Here is a page template example:

In your mytheme.theme file, add a hook_preprocess_page function.

 * Implements hook_preprocess_page()
function MYTHEME_preprocess_page(&$vars) {
  $vars['get']['name'] = $_GET['name'];

Then in your page.html.twig you can render it like this:

<h1>{{ get.name }}</h1>
  • My template is actually a block template and I can't seem to get access to the variable from preprocess_page. I tried doing the same thing in preprocess_block but the block template can't seem to see any variable I create for it.
    – Amy
    Oct 14, 2016 at 20:36
  • Did you rebuild the cache after adding the hook?
    – Chance G
    Oct 14, 2016 at 20:37
  • yes. As I test I did mymodule_preprocess_block(&$variables){ $variables['test'] = 'testing'; } and inside my template {{ test }} but it came out null. I tried it as $variables and $vars.
    – Amy
    Oct 14, 2016 at 20:39
  • 2
    If you add your own template called newsarchive, then it's ...preprocess_newsarchive, not block.
    – Berdir
    Oct 14, 2016 at 21:04
  • 3
    Note that in this case, I would actually recommend you just pass along that from the request object in your block: #name => \Drupal::request()->query->get('name'), make sure you define it as well in your hook_theme(). And last note, the xss filtering is not needed, that would only result in double escaping. auto-escape takes care of that
    – Berdir
    Oct 14, 2016 at 21:14

You can create a Twig function to achieve this. E.g:

namespace App\Twig;

use Twig\Extension\AbstractExtension;
use Twig\TwigFunction;

class AppExtension extends AbstractExtension
    public function getFunctions()
        return [
            new TwigFunction('getQueryArg', [$this, 'getQueryArg']),

    public function getQueryArg(string $argName): string|int {
      return \Drupal::request()->query->get($argName);

In TWIG you would call it as: {{ getQueryArg('name') }}

See https://symfony.com/doc/current/templating/twig_extension.html

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