username.domain.com - login system

[eluser]Unknown[/eluser]
Hello there,

I was introduced to CodeIgniter about 2 months ago and I decided to create my new web app using it. Im still a very beginner using it but hey we all started as a blank mind . My web app required a user login system (register, login etc...) It also requires to have the new registered user account as username.domain.com. Is that possible using CodeIgniter. Also is that possible doing this method on a localhost (XAMPP or WAMP for dev). I was thinking that I would need to redirect domain.com/username to the username.domain.com but then I think It will cause problem when it comes to domain mapping etc...

Well Thanks in advance I hope I get some help down here mirk: .
PS: I searched that issue for the past couple days but no clear result.

[eluser]treeface[/eluser]
This is a bit old, but it might be helpful:

http://andy.sinaptix.com/2007/08/22/user...deigniter/

[eluser]Udi[/eluser]
http://ellislab.com/forums/viewthread/162029/