It is kind of difficult to figure out exactly what you are trying to do. As far as I can tell, you are trying to do something like the following. You end up with an awful lot of duplicated information though.

If you showed an example of what your expected data structure looked like, it would be easier to help you.

Update: I see anonymonk already had similar advice...

use warnings;
use strict;
use Data::Dumper;

my @totlines = map {chomp; [split /,/, $_]} <DATA>;

#print Dumper \@totlines;

my %hash = (
    '_W9C2JJDCB' => 
    [
        '_W9C2JJDCB',
        '201200240',
        'TEST: IGNORE',
        'John Doe',
        'Closed',
        'HIP',
        'email@email.com',
        'email2@email.com',
    ],
    '_W9C2JJDCA' =>
    [
        '_W9C2JJDCA',
        '201200245',
        'TEST: IGNORE',
        'Jane Doe',
        'Closed',
        'HOP',
        'email@imail.com',
        'email2@imail.com',
    ], 
);

for my $line (@totlines) {
    my $key = $line->[0];
    if ( defined $hash{$key} ){
        push @{$hash{$key}}, @$line;
    }
}
print Dumper \%hash;

__DATA__
_W9C2JJDCA,<P>This is the problem1.</P>,<P>This is res1</P>
_W9C2JJDCA,<P>This is the problem2.</P>,<P>This is res2</P>
_W9C2JJDCA,<P>This is the problem3.</P>,<P>This is res3</P>
_W9C2JJDCB,<P>This is the problem1.</P>,<P>This is res1</P>
_W9C2JJDCB,<P>This is the problem2.</P>,<P>This is res2</P>
_W9C2JJDCB,<P>This is the problem3.</P>,<P>This is res3</P>
_W9C2JJDCC,<P>This is the problem1.</P>,<P>This is res1</P>
_W9C2JJDCC,<P>This is the problem2.</P>,<P>This is res2</P>
_W9C2JJDCC,<P>This is the problem3.</P>,<P>This is res3</P>

[download]

In reply to Re: Comparing Hash key with array by thundergnat
in thread Comparing Hash key with array by packetstormer

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