I just got to know about ADR (Action Domain Responder) pattern that seems to be much more efficient than MVC (Model View Controller), but as oppose to MVC, I have it difficult to find a framework for ADR. The reason must be its age, it is so young. But still does anyone knows a PHP(or any other languages) framework that implements ADR?
Symfony 2 is not really a MVC based framework. A controller can be any callable; so you can use it for ADR.
Some links explaining how use controllers as actions:
It could also be a good idea to use controllers to instantiate and parameterize your actions; so an action don't have to know if it was asked from an HTTP request or console command, for example.