The test is to create a Kohana project and build a simple file upload project that allows a user to upload an image and then the user can tag the image. It's up to you how far you take this, or how you implement. We're not looking at your creative front end skills so don't worry too much on design but use twitter bootstrap UI framework. Code should be self documenting.
What we're testing is:
> understanding of PHP OO
> understanding of correct use of MVC framework
> understanding of Kohana
> understanding of file security
> understanding of how easy to read your code is
Bonus points for HTML5 file uploader