Anti Spam SMTP Gateway
Centralized vetting and records of Certificate Signing Requests (CSRs)
Automatic CSRF protection for JavaScript apps using a Symfony API
Free Static Code Analysis Tool for PHP Applications
A small, simple PHP MVC framework skeleton that encapsulates a lot of
Free and Open Source Web Sites Builder
A simple PHP-AJAX captcha application
an extremely buggy web app !
ASP or PHP Captcha, completly configurable, with prevalidation
Php User Login System Exentended
A simple script for distributed computing through PHP: