my %keywords;
...
uc($word); # or lc()
$keywords{$word}++;
if ($keywords{$word} > 1) {
    # deal with a duplicate
}
...

[download]

--
hiseldl
What time is it? It's Camel Time!

In reply to Re: Detecting duplicate keywords passed in a form by hiseldl
in thread Detecting duplicate keywords passed in a form by hacker

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