What?!?

It is syntactically valid, it just won't do what he wants (no chance in hell).

The expression will evaluate to $xml->{{}}, and that key (the stringified version of that anonymous hashref) is not defined, so a warning will be thrown.
something like that ;)(actually $xml->{gene}{{}} , but it's not really important)

If you didn't know what the comma operator would do in this expression, read "List" is a Four-Letter Word, as well as perldoc perlop

update: 

use Data::Dumper;
local $\="\n";

$a = {
    gene => { id => 3, label => 'generrrous' }
};

print $a->{ gene, id}=1;
print $a->{ gene => id };
print Dumper $a;

__END__
1
1
$VAR1 = {
          'gene' => {
                      'label' => 'generrrous',
                      'id' => 3
                    },
          'gene‡˜id' => 1
        };

[download]

MJD says you can't just make shit up and expect the computer to know what you mean, retardo!
** The Third rule of perl club is a statement of fact: pod is sexy.

In reply to Re: Re: (jeffa) Re: XML::Simple by PodMaster
in thread How to access results of XML::Simple? by matth

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