Re: anti-spam GD security image code validation

From: Date: Wed, 21 Feb 2007 13:21:56 +0000
Subject: Re: anti-spam GD security image code validation
References: 1  Groups: php.general 
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Could you not ? 1. Generate a code and put it in a session variable 2. Create the validation picture and display to the user 3. On validating compare the code to the session variable Regards Scott. ""Bare"" <labunski@latnet.lv> wrote in message news:58.A3.30289.1964CD54@pb1.pair.com... > Can someone explain how the validation works? > I have included a code (that generates random security code and places it > on a GIF) to the page where the submission form is. Now, when submitting a > comment, the user has to type and submit this security code. > So far it's OK, but how to VALIDATE if he has typed the correct code? > Cause after submitting the form, the code is generated again, but to be > able to validate submitter's code, I have to check if submitter's code is > equal to previously generated code, and not to the code that's generated > after submitting the form. > > Ok, I could store actual security code in a hidden text field of the form, > but then it wold be visible to spam bots, isn't it? > Or maybe there's another way to do this? > > > Thanks in advance!

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