filter type taxonomy

hi

I want to know if there any embedded function that allow me to determine filter type for current views. For example I've created a view to display all nodes with node type "PAGE" and added some filters to this view, for example filtering by taxonomy terms for certain vocabulary and filtering by "Node: Author is anonymous" (just an example!!!!).

I'm developing custom module for views so mu question is how do I determine if some view filers are related to taxonomy tasks and some is not?

Also I've got an array of my filters. Can anybody explain it's values?
<?php
Array
(