Yeakum is a PHP framework that I created from scratch to show some of our employees how a MVC Framework works. Yeakum is open source and is up on the sourceforge repository.

Kohana modules are reusable collections of related files that together add a particular functionality to an application.  Modules are for use across applications or within an individual application itself.  Modules will not automatically be auto loaded by the auto loader.  First you need to add the module to the $config[‘modules’] array in the application/config/config.php file [...]

Kohana’s helpers are for static methods where the class does not need to be instantiated in order to use the methods.  You can consider these methods as handy functions that you can use throughout your application.  Helper classes are auto loaded by the framework so there is no need to include them.  Helper files are [...]

Kohana’s libraries are for things like captcha, session, and authentication where you need a class that will be instantiated in order to use its methods.  Kohana’s Libraries are auto loaded by the framework so there is no need to include them.  You need to put the library files in the application/libraries folder.  Library class names [...]