imgboard . php

So I was browsing /b/ when it crashed, and a download popped up for imgboard.php

http://pastebin.com/m2c2883d7

Haven't gotten a chance to look through it yet. Is this win?

OP again

I'm not much of a web programmer, and to me the file seems HORRIBLY spaghetti-coded and hard to follow. A few things seem interesting, but figuring out what's actually going on is pretty difficult for me. If anyone finds something cool, please post an explanation.

Also if anyone has the included postfilter.php, which I assume has all the wordfilters listed, please put it up on pastebin.