Use a hash and don't abuse globals just to pass arguments. to paraphrase your code: 

#!/usr/bin/perl -w
use strict;
check(qw(a b c));


sub check {
  my %hash = (
   a => 'here',
   b => 'present',
   c => 'me too',
  );

  for (@_) {
    print "$hash{$_} has a value\n";
  }
}

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"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re^3: when is "my" not necessary? by Joost
in thread when is "my" not necessary? by argv

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