I was thinking about the following but to be honest I'm not even sure if it's possible (or how it is done). Let's suppose that I have www.domain.com, I need to create like "fake pages/alias" for my users. For example, user peter should be able to get to www.domain.com/peter and see his stuff.
As a workaround I've created a PHP scripts and Apache config that are basically reading whatever is added after the .com/ (in this case peter) and redirecting the user to www.domain.com/x/?peter, which is actually index.php?peter but this is not really what I was looking for.
Looking for any idea/suggestions :)