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I wondering how I would do this:

website.com/tutorial/12

Basicly, that would bring up the tutorial with the id 12.or:
website.com/news/submit etc.

Thanks in advance :P

If I understand what you mean, I do not think that this is the most efficient way of going about your problem. I do have a solution though.

The process you are talking about is as follows:
1. Grab the address bar information (simple enough).
2. Strip it apart, search for the "/" character and grab the folder names that you need.
3. Now, for every subdirectory that you have, you need an index.php or something in there to catch the call.
4. From there, you are probably forwarding to another page, with the ID (foldername).

Solution:
- Cut out steps 1 to 3. This will save file space and a lot of unnecessary time.
- Create your tutorials.php that asks for one variable, id.
- According to what id is, the appropriate tutorial will appear.
- Links will be like: http://www.website.com/tutorials.php?id=34 rather than http://www.website.com/tutorials/34/