Is there a good base for me to work from for php user registration + subscription in MVC format?

Question

Basically, I'm about to write a php script in the Zend Framework that's ONLY purpose is to handle user registration and offer AUTOMATIC MONTHLY subscriptions so that I can add other php driven scrips that they'll have access to based on their subscription status.

Does something already do this? I'm looking for barebones, not something like zencart or ecommerce software that does 10000 things. User registration and subscriptions only.

I want to use this as a base to offer other php driven tools that would require a subscription to access.

Answer 1

There is a php based mailing list PHPList, but I recommend Mailman, the de facto standard python powered mailing list program.

Answer 2

Apparently not.