Oh, it is ordered in some way, just not any way that is obvious to the casual user. The sort order is indicative of how perl is modelling the hash internally. Yes you'll see the same order each time you run the script, but that may well not be true if you were to run it on another operating system or a different version of Perl.

All in all, it's best to assume that the ordering is random.

"Perl makes the fun jobs fun
and the boring jobs bearable" - me