String::Combination worked for me. Try this: 
#!/usr/bin/perl

use strict;
use warnings;
use diagnostics;
use String::Combination qw(combination);

my @comp = combination('12345678', 8);

print "@comp\n";

[download]
It works with k integers 2 thru 8.

In reply to Re: String::Combination Package Bug? by Khen1950fx
in thread String::Combination Package Bug? by b4swine

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