Hello Monks,

I've run into a strange problem using a HoH within a subroutine. It appears that even though I initialize the hash and use 'my', the hash is persisting outside the scope of the sub. When I call the sub a second time instead of creating and populating a new HoH it uses the previous HoH. I would think that the HoH would be destroyed when the sub returned. Is this a bug or am I not cleaning up after myself?

Example:

my $group1 = "group1";
my $group2 = "group1"; # using primary key again bw diff values
my $list1 = "1-2-3-4-5-6-7-8";
my $list2 = "1-2-3-4-5";

&test_hash($list1, $group1);
&test_hash($list2, $group2);

sub test_hash {
    my $list = $_[0];
    my $group = $_[1];
    my @vals = split /-/, $list;
    my %test_hash;
    $test_hash{$group} = $group;
    for (my $i = 0; $i < scalar @vals; $i++){
        $test_hash{$group}{$vals[$i]} = $vals[$i];
    }
    foreach $k(keys %test_hash){
        print "$k\n";
            foreach $v (keys %{ $test_hash{$k} }){
                print "\t$test_hash{$k}{$v}\n";
            }
    }
    
}

Output:
group1
        8
        6
        4
        1
        3
        7
        2
        5
group1 # 6,7,8 should not be in the new HoH below...
        8
        6
        4
        1
        3
        7
        2
        5

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In reply to my Hash Persisting? by Anonymous Monk

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