I would like to make a special sidebar that appears only when the reader is looking at a post from a specific category.
I can't figure out how to display the parent category id for a post.
So I need to do do a if them statment to display they proper sidebar...
If category 1 then display sidebar.php
If category 2 then display sidebar2.php
So how do I know what category a post is in and assign it to a variable?