Graphical bot protection scripts for registration

[s|k]

You know, those images that bots can't read and users have to type into a field. Does anyone know where I can get one for a site scripted with PHP?

[Eich]

I don' t know where you can get one, but the way of making one is generate a random string of text, store it in a session or db and using the PHP function imagepstext or imagestring to add the string to an image. I haven't done it yet, but I think that's the way it works.

[Mandes]

Bokehman has just posted a great example of this, look here

Perhaps if you asked him nicely

[paulyG]

You know, those images that bots can't read and users have to type into a field. Does anyone know where I can get one for a site scripted with PHP?

If you grok OO code, you will always find stuff at www.phpclasses.org, you have to register, and the quality differs wildly, but you can see what other people are donating in the way of capchas.

If not try www.phpguru.org - theres a nice text to numbers script he uses, U don't need the server to make images.
TextualNumber