my $code_ref = sub
{
    my $array_ref;
    my $nested_code_ref = sub
                          {
                               my @array = ("one","two","three");
                               $array_ref = \@array;
                          };
    $nested_code_ref->();
    return $array_ref;
};

print $code_ref->()->[0];
print $code_ref->()->[1];