[Twisted-Python] HTTP POST method in php on twisted server

Hi, I am trying to use php script on twisted server using twcgi.I want to make use of http POST method in that.What I want to do is, suppose I am having one html page say index.html and from that page I want to redirect to other php page and pass data to that php page using POST method.But I am not able to access any POST data in php script.When I debugged through twcgi.CGIScript.render method, I didn't find any reference to POST data.So how can i make use of POST data in php ? Thank You.