You can store a filehandle as hash value, but you can't store it as hash key. As key the filehandle gets stringified and loses any special properties

#!/usr/bin/perl
use warnings;
use strict;

my %f;

open($f{r},'>','test.txt') or die;
my $fhvalue=$f{r};
print '<',ref $fhvalue,">\n";
my %i;
$i{$fhvalue}= 1;
my ($fhkey)= keys %i;
print '<',ref $fhkey,">\n";

#prints
<GLOB>
<>

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UPDATED with the code example

In reply to Re: printing to filehandle contained in a hash by jethro
in thread printing to filehandle contained in a hash by deadpickle

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