Given a node object how can I detect if it's first term (or term in a chosen vocabulary) contains a taxonomy image?

Question

Using php code and a node object, how can I detect whether or not the node's first term (or term in a chosen vocabulary) has a taxonomy image? Any help appreciated.

Answer 1

taxonomy_image_display returns an empty string iff the term has no image.

Given a node $node, the terms are stored in $node->taxonomy as an array indexed by term ID (see taxonomy_nodeapi($node, $op = 'load')).