Pass the SEF'ed URL into php?

Well, I was using this to serve specific banners to the various sections I have on my website.

So I was pulling the sef url, then using the explode function in php to extract the section name and using that name to serve the specific banner I wanted.

I'm sure there can be many uses for it...

Thats a very great idea.... diefferent invocation-codes for different cats/sections......
Currently i mange that via hundreds of custom-modules, publish in the specified menu-entry for a cat/section.

Regards, Christian