In Symfony2 how do I redirect within a Controller to a URL with an anchor tag/hash

Question

I'm in a Controller and I want to redirect back to a URL, say /home/news/example#comment1423

How can I add the hash in to the return params?

return $this->redirect(
    $this->generateUrl("news_view", array("permalink" => "example"))
);

Answer 1

The simplest solution would probably be concatenation:

$url = $this->generateUrl("news_view", array("permalink" => "example"));
return $this->redirect(
    sprintf('%s#%s', $url, 'comment1423')
);