This is a simple PHP CAPTCHA that uses a small bit of JavaScript used to enable the user to refresh the captcha and get a new string. This CAPTCHA is not meant to be used to secure your site, but give you an example of how a CAPTCHA might be made.

Forgive me if it’s not perfect I wrote this a while back, but I have gone over everything and reworked most of it. With a little improvement on what I have provided this could become a robust anti spamming measure.

Features

• Completely dynamic
• Completely Random
• Uses JavaScript to load a new CAPTCHA image
• Config file to customizable just able everything easily

Preview

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