I need a false value returned if the zip code doesn't match, 1 returned if the 1st 5 digits match, and a 2 if all 9 digits match.

How about something like this? 

    sub zipMatch {
        my $zip_card = shift;

        return 0 unless $zip_card =~ m/\b(\d{5})(?:-(\d{4}))?/b/;
        return 1 unless $2;
        return 2;
    }

[download]
The \b are to avoid accidentally matching an invalid zipcode like 
  0000000000-0000000000

[download]

In reply to Re: Zipcode Regex Help by dws
in thread Zipcode Regex Help by tcf22

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