I have a subroutine that I would like to run against two data sources and print to different lexical filehandles depending on the original entry point (the routine recurses through Active Directory trees). 
open($eis_fh, ">", "EIS.txt") or die "no handle to write EIS users";

Roundup($EIS_O, $eis_fh);

sub Roundup {
    my ($root, $fh) = (@_);
    foreach (in $root) {
        my $thing = $_;
        if ($thing->{class} eq 'organizationalUnit') {
                  my $thong;
                foreach (in $thing) {
                    $thong = $_;
                    Roundup($thong);
                }
        }
        elsif ($thing->{class} eq 'user') {
            my $string;
            $string .= $thing->{employeeID}; 
        $string .=  "\t" ;
        $string .=  $thing->{sAMAccountName} ;
        $string .=  "\t" ;
        $string .=  $thing->{department} ;
        $string .=  "\t" ;
        $string .=  $thing->{o} ;
        $string .=  "\t" ;
        $string .=  $thing->{physicalDeliveryOfficeName} ;
        $string .=  "\n";
        print { $fh } $string;
            }
        else {
        }
    }
}

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does not work. What am I overlooking?

In reply to passing lexical filehandles by girarde

Title:
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