Web Spam Protection (Captcha) for PHP and Perl
ZZEE Human Pictcha is a protection in a form of an image (a captcha), which can be embedded inside your web forms, and which will filter out various forum spam, guestbook spam, form spam, signup spam, password attacks, etc. It is a library and a set of tools and examples for PHP and can be used with Perl as well. Please see requirements at the left menu as well as detailed description in the help file.

Human Pictcha is fairly easy to install and embed into your existing PHP or Perl forms. You can download a free demo version to see if it is compatible with your web site and how easy to use it in your forms. Human Pictcha comes with the full open source, which is a big advantage.

Here are the most important features of Human Pictcha:

Secure and hard to defeat by OCR. You can significantly adjust the level of protection by enabling or disabling security features and changing various parameters.
You can embed Human Pictcha into your PHP or Perl forms.
You can change the HTML code being inserted into your forms to match your website looks.
Compatible with the typical webserver setup (PHP/MySQL).
Image code can consist of Digits and letters or only digits, making it easy to ADAPT to international markets.
Easy to setup and maintain.
Has complete documentation.
Comes with the full open source. This gives you Freedom to modify Human Pictcha to fit your needs.
Human Pictcha is designed to be hard to defeat by the OCR software, but at the same keep the human pass rate at about 90%. This will ensure both smooth user experience and hard time for spam BOTS. you can free download Human Pictcha 1.0.5 now.