Unsure if you'll even see this but this is prone to an RFI (http://en.wikipedia.org/wiki/Remote_file_inclusion) or even more likely a local file inclusion attack given the current state of the code provided. I could simply exploit your $_GET variable and force download your system account usernames and passwords from the server. Of course it is a tutorial but if a user were to have used that code without any knowledge of PHP and simply just c&p, like most do, then I wouldn't advise using it as is.
Yeah I checked that out recently, which is how I came to the conclusion that I would have had to acquire my GUID.
As to you quoting me on being bothered to, it was merely due to the fact it's too time consuming to even worry about it, thanks anyways.
Hey,
Was just recently banned for 2 days because someone had TK'd me and I somehow took the fall, anyways it made me register on the forum. I was planning on appealing but I can't be bothered posting my GUID. Anyways, my name is Alfredo & I'm a web developer and play Wolfenstein on my Mac when I get occasionally bored of coding. Yup, simple enough.
The end.