I have some legacy code with a hash in the form $hash{$key1, $key2} which looks like a deprecated form of a 2D hash from searching the internet. Can anybody confirm this? Or is it some kind of slice? The code also uses another old method, dbmopen to save the data. The PODs from CPAN indicate that the interfaces (MLDBM, Berkeley, etc) are not very reliable for saving n-D hashes. Does anybody know a reliable way?
Thanks
Mike