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Image Verification (updated)

Submitted on: 1/1/2015 12:42:00 PM
By: Dracarys (from psc cd)  
Level: Intermediate
User Rating: By 14 Users
Compatibility: PHP 4.0
Views: 4894
     This tutorial will show you how to make an image verification like they use (used?) on Yahoo or they still do on Planet Source Code. It is quite useful in order to prevent users from writing scripts that would do the voting, posting or whatever. Now, whenever a user wants to vote for something, he gets an image with a randomly generated string, that consists of uppercase and lowercase characters and numbers from 0 to 9. He then has to enter the string he sees on the picture and only if the code is correct, he will be allowed to proceed. I hope this code will help you. I admit, i took the idea from a recent post on Planet Source Code. (canīt remember, who it was) But the method used was too unsecure and relied on posting variables. :)

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Note: Due to the size or complexity of this submission, the author has submitted it as a .zip file to shorten your download time. Afterdownloading it, you will need a program like Winzip to decompress it.Virus note:All files are scanned once-a-day by Planet Source Code for viruses, but new viruses come out every day, so no prevention program can catch 100% of them. For your own safety, please:
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