A free, bare-bones anti-spam test.
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This is a simple CAPTCHA script written in PHP. I was looking for something that was a small amount of code, looks good and is fairly customizable. This script is so easy to plug into your existing apps. It doesn't get much simpler. It can even act as a base for developers interested in building a stronger, more random CAPTCHA. Free for any use provided you keep the README.md file with it, and intact. CAPTCHA difficulty (strength) is low to moderate.
- 2020-03-06 - Added to GitHub, improved readme and simplified the code.
- 2009-06-04 - Changed to use a jpg image as a base. Otherwise doesn't work in some environments.
- 2009-02-12 - Removed the need for the external JS file. Now uses inline JS for the reload button.
- 2009-02-11 - Created AVCaptcha.