http://www.perlmonks.org?node_id=596445


in reply to A Case with 5 Var's

Use a hash instead of five scalars. Then you can do:

my @found;
foreach my $field_name (qw/name vorname plz tel tel49/) {
  push(@found, $field_name) if ($my_hash{$field_name});
}

[download]

(Untested)

That will give you an array of all the fields that are set. This may or may not be helpful - you didn't say what you planned to do with the results.

In Section Seekers of Perl Wisdom