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Re: Reading the output of Dumper
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Ah! Muchas Gracias for the explanation and the link.
Eric
Mark Dominus wrote:
When I invoke Dumper on a variable like this:
my $cgi2 = new CGI;
print "<pre>" ;
print Dumper($cgi2) ;
print "</pre>" ;
I get this output:
$VAR1 = bless( {
...
}, 'CGI' );
So far, so good.
Now, how do I access the elements of $cgi2 ?
$cgi2 is not a hash, but a reference to a hash.
So one uses:
print $cgi2->{'display'}[0] # prints 10
print $cgi2->{'charset'} # prints 'ISO-8859-1'
push @{$cgi2->{'display'}}, 17, 23, 119; # Push onto array
I suggest that you read http://perl.plover.com/FAQs/references.html ,
"Understand References Today", which has a short symmary of reference
syntax.
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--
# Eric Lucas
#
# "Oh, I have slipped the surly bond of earth
# And danced the skies on laughter-silvered wings...
# -- John Gillespie Magee Jr
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