Problem retrieving CN with ldap_search()

Hi all,

I've posted this question to comp.lang.php a couple of days ago, but up
till now didn't get a really useful answer. So, here it is:


I' m facing the following problem. I try to retrieve the Common Name 
(cn) from an LDAP database, using the commands: 

$result = ldap_search($ldap,$basedn, 'mail='.$email, array('dn','cn')); 
$entries = ldap_get_entries($ldap, $result); 

The weird thing is that $entries[0]['cn'] is empty. I know the search 
command succeeded, because $entries[0]['dn'] contains the correct 
information. Furthermore, if I issue the following commands: 

$result = ldap_search($ldap,$basedn, 'mail='.$email); 
$entries = ldap_get_entries($ldap, $result); 
var_dump($entries); 

I get: 

array(2) { ["count"]=>  int(1) [0]=>  array(24) { ["objectclass"]=> 
array(4) { ["count"]=>  int(3) [0]=>  string(13) 
"shadowAccount" [1]=>  string(12) "posixAccount" [2]=>  string(13) 
"inetOrgPerson" } [0]=>  string(11) "objectclass" ["gecos"]=> 
array(2) { ["count"]=>  int(1) [0]=>  string(12) "Marcel Loose" } 
[1]=>  string(5) "gecos" ["uid"]=>  array(2) { ["count"]=>  int(1) 
[0]=>  string(5) "loose" } [2]=>  string(3) "uid" ["sn"]=>  array(2) 
{ ["count"]=>  int(1) [0]=>  string(5) "Loose" } [3]=>  string(2) 
"sn" ["givenname"]=>  array(2) { ["count"]=>  int(1) [0]=>  string(6) 
"Marcel" } [4]=>  string(9) "givenname" ["uidnumber"]=>  array(2) 
{ ["count"]=>  int(1) [0]=>  string(3) "511" } [5]=>  string(9) 
"uidnumber" ["mail"]=>  array(2) { ["count"]=>  int(1) [0]=> 
string(15) "[email protected]" } [6]=>  string(4) 
"mail" ["gidnumber"]=>  array(2) { ["count"]=>  int(1) [0]=> 
string(4) "1000" } [7]=>  string(9) 
"gidnumber" ["shadowlastchange"]=>  array(2) { ["count"]=>  int(1) 
[0]=>  string(5) "14127" } [8]=>  string(16) 
"shadowlastchange" ["homedirectory"]=>  array(2) { ["count"]=>  int(1) 
[0]=>  string(11) "/home/loose" } [9]=>  string(13) 
"homedirectory" ["loginshell"]=>  array(2) { ["count"]=>  int(1) 
[0]=>  string(9) "/bin/bash" } [10]=>  string(10) 
"loginshell" ["count"]=>  int(11) ["dn"]=>  string(35) 
"uid=loose,ou=people,dc=astron,dc=nl" } } 

As can be seen, the Common Name (cn), is mysteriously missing. The 
information IS present in the LDAP database, though. Here's a snippet 
of the output of 'slapcat', for the given user: 

dn: uid=loose,ou=people,dc=astron,dc=nl 
objectClass: shadowAccount 
objectClass: posixAccount 
objectClass: inetOrgPerson 
gecos: Marcel Loose 
uid: loose 
sn: Loose 
givenName: Marcel 
structuralObjectClass: inetOrgPerson 
entryUUID: 2375bf08-e435-102b-8b97-3952138d3cf7 
creatorsName: cn=Manager,dc=astron,dc=nl 
createTimestamp: 20070821132115Z 
uidNumber: 511 
mail: [email protected] 
gidNumber: 1000 
shadowLastChange: 14127 
cn: Marcel Loose 
userPassword:: <########> 
homeDirectory: /home/loose 
loginShell: /bin/bash 
entryCSN: 20100104140045Z#000000#00#000000 
modifiersName: cn=Manager,dc=astron,dc=nl 
modifyTimestamp: 20100104140045Z 

Am I using ldap_search() incorrectly? Or is this a problem with the 
PHP-LDAP module? Or is it a caused by a misconfiguration of LDAP? 

Best regards, 
Marcel Loose.