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Posted by Michael on 12/26/05 21:21
Answer to what the letters do: It is to stop bots, spam bots, macros,
anything automated really from making account to spam or whatever.
I doubt there is an existing script as it is only useful if you are
validating something and most code uses a different sytle of system for
certain things. But use php GD and i would probably md5 the value and
put it in a $_GET value.
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