Returning the value of a variable from controller to form or

hello everybody
Actually i am new to zend framework. I know that i can return a value of
a variable from a form to the controller. Can I also return a value from
the controller to any form or any model? If this is possible then please
tell me that how can we do it.

Thanks in advance.

I thought zend was a php framework, in some sense a competitor of
Rails. I did not know you could do Rails in the zend framework.