Tags → Php Captcha Tutorial

Creating a CAPTCHA in PHP with GD

A CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a system designed to test if input is originating from a human or a computer. This tutorial will explain how to make your own CAPTCHA using PHP and the bundled ...

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PHP CAPTCHA Tutorial

Captcha stands for &"Completely Automated Public Turing test to tell Computers and Humans Apart&" and is used for telling humans and computers apart. Here is a tutorial that will teach you how to create your own PHP CAPTCHA.

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Math Captcha image validation

With all the Captcha decoders these days, its impossible to build a solid Captcha image validator with a string. The solution? Have a captcha that asks simple math addition questions! Decoders are not very good at breaking these. This tutorial ...

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How to Create CAPTCHA Protection using PHP and AJAX

CAPTCHA is a simple test to determine if a user is a computer or a human. It is used to prevent spam abuse on the websites. So if you use CAPTCHA on your web site forms, this can help in stopping some bots and making life harder for other bots in acc...

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