the sfRequest instance, or failing that just use PHP environment vars.
> A filter **subdomainFilter**
> http://forum.symfony-project.org/index.php/m/80813/
> [[http://mirmodynamics.com/tag/howto|... browser/tags/RELEASE_1_2_7/lib/helper/AssetHelper.php#L600|source code]] [[http://trac.symfony-project.... gs/RELEASE_1_2_7/test/unit/helper/AssetHelperTest.php#L209|unit test]]
* [[http://www.symfony-project