https://github.com/sitefusion
Store files into Database.
Java validation framework (not JSR-303 implementation).
controlled_vars.h to always work with valid variables
PHP Templating & Includes System
Extensible PSR-0 compatible class autoloader for PHP 5.3+
Pseudo-implementation of JavaScript for PHP 5.3+
Base class for PHP 5.3+ which allows design by contract in PHP