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  1. or download this
    foreach (@t_loop) {
       my $label = $_->{label};
    ...
    
       $final .= "$label=$value\n";
    }
    
  2. or download this
    %t_loop = (
       Dow => [ 'Sun', 'Mon', 'Tue', 'Wed' ],
    );
    
  3. or download this
    %t_loop = (
       UK => 'Country',
    );
    
  4. or download this
    while (my ($key, $val) = each %t_loop) {
       $val = join(' ', @$val)
    ...
    
       $final .= "$key=$val\n";
    }