MySpace-like .htaccess config with ForceType directive

Hello there thanks for your attention,
I'm tryin to make somethin like myspace with htaccess. Which should be a extension-less link like http://www.mysite.com/username to show user profiles. I can assign "username" to be parsed as php by sth like:
but i don't want to have a specific page called "username" for every user. i want one single page that can parse the URL part after the ending "/" . Can someone help me please?

re: MySpace-like .htaccess config with ForceType directive

This is generally done on dynamic websites. A URL such as http://site.com/username will be read as http://site.com/?user=username. This can be accomplished with rewriting the URL.

Htaccess demo:
The above would change the URL http://site.com/user/mark to http://site.com/?user=mark. You could then use whatever language you are using to obtain this value (GET).

If you want the URL to be 'masked', change the R flag to L.