Does anyone know of a php program(or any kind for that matter) that allows users to sign up for a free hosting account and have it created automatically directly after signing up?

Also, it needs to be compatible with subdomains, not domains. Like for example, when signing up, there is a field where they can choose what subdomain they would like, or see if it is taken, etc.

I know I'm not exactly the best when it comes to explaining things, but do any of you by chance know what I'm talking about?


Reeve