You may use the "branch reset" pattern: 

#!/usr/bin/perl

use strict;
use warnings;
use feature 'say';

for (qw(/key/123 /123-456)) {
    my ($id) = m!(?|/key/(\d+)|/(\d+)-\d+)!;
    say $id;
}
__DATA__
123
123

[download]

EDIT: Added the missing leading slash in the second branch.

Greetings,
-jo

$gryYup$d0ylprbpriprrYpkJl2xyl~rzg??P~5lp2hyl0p$

In reply to Re: capture value from two patterns by jo37
in thread capture value from two patterns by vitoco

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