Setup how to enter random chars on a form.

I want to know how would I go about setting up a way to make sure that a spammer is not automatically creating accounts in a forum. I've seen where you have to type in some random letters, about five or so.

Thanks!
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Elton BrownAsked:
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PhilHowCommented:
What you are referring to is actuall aan image and the technology is CAPTCHA:

http://en.wikipedia.org/wiki/Captcha
http://www.captcha.net/

Free services here:
http://captchas.net/
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Elton BrownAuthor Commented:
Thanks PhilHow!

I guess I can move along from here. I just read how to set it up. Interesting...

Cheers!
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