Showing relevant categories on custom taxonomy template

Question

I an using two taxonomies with private posts.

1. category e.g. massage, travel
2. location e.g. new-york-city, boston etc.

On a location page, I want to show categories that are relevant to that location. e.g. If I am on ?location=boston page I would find all the posts that are in boston, then I would find a list of categories in which these posts are categorized. I want this list to be displayed on top of location page.

Is there is a simple, built-in way to do all this?

Answer 1

In the_loop, just add this code...

<?php
    $cats = wp_get_object_terms(get_the_id(), 'category');
?>

Print_r $cats, it will have the list of the categories applied to this post.