package MyConfig;

our %state_name_for = (
           AL => 'Alabama',
           AK => 'Alaska',
           AZ => 'Arizona'
           );

##</code><code>##

require 'config.pl';

for my $abbrev ( keys %MyConfig::state_name_for ){
  print $MyConfig::state_name_for{$abbrev};
}

##</code><code>##

package MyConfig;

my %state_name_for = (
           AL => 'Alabama',
           AK => 'Alaska',
           AZ => 'Arizona'
           );

sub state_name_for{
  return \%state_name_for;
}

##</code><code>##

require 'config.pl';

for my $abbrev ( keys %{MyConfig::state_name_for} ){
  print $MyConfig::state_name_for{$abbrev};
}