First, you have a slight bug in the loop. You want exists:

  ## each missed field is placed in a new array
  for my $i(@required) {
    if (! exists $FORM{$i}) {
      push @missed_fields, $i;
    }
  }
[download]

I also took out the chomp as that simply removes the input record separator as defined by the $/ variable. Show us how you defined @required and that will help us out a bit more. Also, it will depend on the value of the radio buttons, so show us how those are defined in the HTML.

Cheers,
Ovid

Join the Perlmonks Setiathome Group or just click on the the link and check out our stats.