LJ::get_friend_group — Returns friendgroup row(s) for a given user.
LJ::get_friend_group(uuserid, opt);
uuserid. a userid or u object
opt. a hashref with keys: 'bit' => bit number of group to return 'name' => name of group to return
cgi-bin/ljlib.pl
hashref; if bit/name are specified, returns hashref with keys being friendgroup rows, or undef if the group wasn't found. otherwise, returns hashref of all group rows with keys being group bit numbers and values being row col => val hashrefs