In my homepage loop, I have something that will show which category the post is in. It will say something like "Posted 4 hours ago in Sports by ...". However, when there is no category set, it will omit the category (obviously) and just say "Posted 4 hours ago in by ...". My question is: how do I check if a post belongs to any category in WordPress.
I know that the function
in_category() exists, but I would like to avoid having to type out all of the categories, in case they change, or whatever.