Here is an answer to your question, which makes use of that high-utility CPAN module, Quantum::Superpositions: 
use Quantum::Superpositions;
use strict;

my @ary = (1..7);

my $testnum = 4;

if ($testnum == any(@ary)) {
    warn "$testnum is a member";
}

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In reply to Re: better way to find list members? by princepawn
in thread better way to find list members? by jptxs

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