Question

I have

config.yml

#Here locale is en
translator:      { fallback: %locale% }
...
session:
    default_locale: %locale%

routing.yml

AcmeDemoBundle_homepage:
    pattern:  /{_locale}/index
    defaults: { _controller: AcmeDemoBundle:Default:index, _locale: de}
    requirements:
    _locale: en|de

So here by manually typing URL will lead /en/index to English and /de/index to German.

How we can make automatically go to german, if browser Accept language is de_DE or de(German), else go to english(all other browser Accept languages)?

Answer 1

Basically you can do something like that

$this->get('session')->setLocale(
    $request->getPreferredLanguage(array('en', 'de'))
);

and its should do the trick. But yeah add it in every action can be hard… that why you can create own kernel event listener.

Those links can be helpful I think:

Symfony2 wrong locale detection?

http://symfony.com/doc/current/cookbook/service_container/event_listener.html