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However, I've seen some sites usa a different URL structure:
How does Apache behave in this case? Does it call the index.php file, and does it then pass the "/foo/stuff" string to it?
Does Apache need any special configuration to do this, or it does this by default? If so, how then can I catch such string "/foo/stuff" in my PHP script?
A guide to search-engine-friendly links with mod_rewrite [webmasterworld.com] from our WebmasterWorld library.