Dynamic function how

[eluser]stalwart[/eluser]
how to make second segment dynamic
like this
www.example.com/user/$username

[eluser]EEssam[/eluser]
Check this:

http://ellislab.com/codeigniter/user-gui...uting.html

[eluser]Seppo[/eluser]
As EEssam suggested, you can use routing so all your calls to user/something get remaped to user/lookfornickname/something, or you can use a _remap method (described here