You should really read Tie::Hash
Anyway, to give you a start here is an example:
#! /usr/bin/perl -l
use strict;
use warnings ;

package Remember;

    use strict;
    use warnings;

sub TIEHASH {
    my $class = shift ;     
    return bless {}, $class;
}
sub STORE {
   my ( $self, $key, $value) = @_ ;
   $self->{$key}= $value ;
}

sub FETCH {
   my ( $self, $key) = @_ ;
   return $self->{$key} ;
}

package main;
    my %fred;

    tie %fred, 'Remember' ;
    $fred{'abc'} = 'xyz' ;
    print "$fred{'abc'}";

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In reply to Re^3: using Tie::Hash CPAN module by jeanluca
in thread using Tie::Hash CPAN module by sudeep

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