Sort hash by value and key (in that order)

Question

I\'m looking for a nice way to sort a hash in Perl by value first and by key afterwards.

Example:

 my %userids = (
  williams => \"Marketing\",
  smit         


        

Answer 1

Good reference: http://www.misc-perl-info.com/perl-sort.html#shv

#!/usr/bin/perl

my %userids = (
    williams => "Marketing",
    smith    => "Research",
    johnson  => "Research",
    jones    => "Marketing",
    brown    => "Marketing",
    davis    => "Research"
);

foreach (sort { ($userids{$a} cmp $userids{$b}) || ($a cmp $b) } keys %userids) 
{
    print "$_: $userids{$_}\n";
}