Sure, they are the same. You assigned the same reference twice.

If you want two different copies, use two different references. E.g. the original \@maintainers and a copy [ @maintainers ] or two new copies. 

 #!/usr/local/bin/perl -w

use strict;
use warnings;

use Data::Dumper;

my @maintainers = qw/ worker@company.com manager@company.com /;

my %services = (
    service1 => { email => [ @maintainers ] }, # shallow copy of @main
+tainers
    service2 => { email => [ @maintainers ] }, # another shallow ...
);

print Data::Dumper->Dump( [ \%services ], [qw/*services/] );

exit 0;

__DATA__

%services = (
              'service1' => {
                              'email' => [
                                           'worker@company.com',
                                           'manager@company.com'
                                         ]
                            },
              'service2' => {
                              'email' => [
                                           'worker@company.com',
                                           'manager@company.com'
                                         ]
                            }
            );

[download]

One more thing. I was creating a shallow copy in the example above. For more complex data structures, you might need to copy recursively or use something like Storable::dclone or Clone.

In reply to Re: Putting an array into a hash gives an unexpected reference to the hash itself. by Perlbotics
in thread Putting an array into a hash gives an unexpected reference to the hash itself. by polarbear

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