Extended form_validation: now with file checking :)

[eluser]devbro[/eluser]
I have been thinking of doing this for a long time and finally did .
http://devbro.com/testing/ci_form_validation/


I extended the form_validation to now have ability to check $_FILES (file uploading).

here is the way it can be used:

Code:

$this->form_validation->set_rules('image','Image','file_required|file_size_max[500]|file_allowed_type[image]');

I added 3 set of rules so far:
1. file_required: same as required
2. file_size_max: define maximum file size in KB
3. file_allowed_type: what type of file to expect.

So what do you think? is there any way to improve it further?