Example
Subdomain-based routing can be handled in Symfony using host parameter. For example, _locale parameter can be used as subdomain value.
Assuming
locale: en
domain: somedomain.com
parameters are defined in parameters.yml config file, route would be:
/**
* @Route(
* "/",
* name="homepage",
* host="{_locale}.{domain}",
* defaults={"_locale" = "%locale%", "domain" = "%domain%"},
* requirements={"_locale" = "%locale%|de|fr", "domain" = "%domain%"}
* )
* @Route(
* "/",
* name="homepage_default",
* defaults={"_locale" = "%locale%"}
* )
*/
From this point router can handle URI's such as http://de.somedomain.com. Second @Route annotation can be used as a fallback for default locale and void subdomain, http://somedomain.com.
