Not sure I understand what you're trying to do.  Do you want to retrieve the value of my $var1 or the value of $self->{$var1} (i.e. where the attribute name is in the value of the class variable $var1) ?

The first could be achieved like this

sub get_var{
   my ($self, $var_name) = @_;
   return eval "\$$var_name";
}
[download]

the second like so

sub get_var{
   my ($self, $var_name) = @_;
   return $self->{eval "\$$var_name"};
}
[download]

(As both are methods, you'd need to call them as $val = $obj->get_var('var1').)

Update: here's a full example, so you know how I interpreted your intentions... :)

#!/usr/bin/perl -wl
use strict;

package parser;

my $var1 = "foo";

sub new {
    my $self = bless {}, $_[0];
    $self->parse();
    return $self;
}
sub parse{
    my $self = shift;
    $self->{$var1} = 'bar';
}

sub get_class_var{
   my ($self, $var_name) = @_;
   return eval "\$$var_name";
}
sub get_inst_var{
   my ($self, $var_name) = @_;
   return $self->{eval "\$$var_name"};
}

package main;

my $p = parser->new();

print $p->get_class_var('var1');    # -> foo
print $p->get_inst_var( 'var1');    # -> bar
[download]

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