Anti-Spam Center Script

[InNeedofHelp]

Does anybody know where I could find a free easy to use Anti-Spam Center Scripts? One of those things at the bottom of forms that shows a picture where you type into the input field what letters are displayed in that picture?

[djr33]

You just need an image to relate a code to in the php.
For example:
if the image is 234903.gif, and has that in the image, they'd need to type 234903.
however, the catch is that bots would check for the filename, so you'd need a database or something to relate filename to content.
Anyway, that's it.
Just randomly choose (or even generate) a picture.

[jr_yeo]

what u need is a turing code :p i think :D
this link (http://en.wikipedia.org/wiki/Captcha) will explain it