Here's a quick hash-as-unique-array technique: 
my %hash;
for (qw(first second first third second fourth)) {
    exists $hash{$_} or $hash{$_} = keys %hash;  # Put stuff in like t
+his
}
print "$_\n" for sort {$hash{$a} <=> $hash{$b}} keys %hash; # Get stuf
+f out like this

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Caution: Contents may have been coded under pressure.

In reply to Re: Testing for a string value within an array by Roy Johnson
in thread Testing for a string value within an array by perlMunger

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