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Posted by Mike on 10/16/07 18:41
I've created a form on a web site that asks for users comments. I am
not asking anyone to register or login but I do ask them for an email
address which is then checked for existence. After a few weeks I
noticed lots of bogus advertising/spam comments from bogus Ids.
I tried checking to see if the HTTP_REFERER was from my site before
allowing the PHP code to update the MySQL tables but that didn't seem
to work.
Are there any tricks to stopping this kind of behavior?
Thanks.
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