foreach my $uid (keys %results){
        $search = $ad_ldap->search(
            base   => 'DC=company,DC=domain,DC=lan',
            scope  => 'sub',
            filter => "(&(cn=".$uid.")(objectclass=user))",
            attrs => ['lastlogon', 'cn']
            );

        # if no results were returned, set ad_lastlogintime to 0 and go to next uid
        if ( $search->count == 0){
            $results{$uid}{ad_lastlogintime}{0} = 1;
            next;
        }
    
        # store the AD last login time in the uid hash
        foreach my $entry ($search->entries){
            $results{$uid}{ad_lastlogintime}{$entry->get_value('lastlogon')} = 1;
        }
    }