I'm using the unofficial PHP library.

Is there a good way to get the profiles of all 'my' friends?

The 'friends' request sends back some minimal info (including user id), but I want to get more stuff from all their profiles, and would like to do this with one request, rather than looping through the results of a 'friends' request.

Any ideas?

There isn't a single request to handle this. Also note that you cannot collect full profile information from any Friends unless they've given the App permission by adding it to their profiles.