Getting the base url of the website and globally passing it to twig in Symfony 2

This is now available for free in twig templates (tested on sf2 version 2.0.14)

{{ app.request.getBaseURL() }}

In later Symfony versions (tested on 2.5), try :

{{ app.request.getSchemeAndHttpHost() }}

Why do you need to get this root url ? Can't you generate directly absolute URL's ?

{{ url('_demo_hello', { 'name': 'Thomas' }) }}

This Twig code will generate the full http:// url to the _demo_hello route.

In fact, getting the base url of the website is only getting the full url of the homepage route :

{{ url('homepage') }}

(homepage, or whatever you call it in your routing file).

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