The second condition can generate a false-positive - a value of '0' is a valid one, but wouldn't be catched here.

Also, the `_get_validation_object()` existance is justified as something that would be used a lot in this helper, but since you'll need two libraries here, it's better with something like this:

    $CI =& get_instance();
    $CI->form_validation->whatever;
    $CI->input->whatever;