Perlfunc: in_array()

If you need to determine if an array contains a specific element you can use this function:

sub in_array {
        my $needle   = shift();
        my @haystack = @_;

        foreach my $l (@haystack) {
                if ($l eq $needle) { return 1; }

        return 0;

Note: If you want to check integers just change the eq to ==

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