[imp] LDAP and retrieval of name and mailaddress

[ES]

Hi,
I'm using Lotus Domino 5.06a as my mailserver, this supports LDAP.
I'm using IMP 3.2 and HORDE 2.2 from the stable release.
IMP is running separated from the Domino-mailserver an a SuSE Linux 8.2 
Server.

In imp/conf/conf.php
$conf['hooks']['from'] = 'imp_expand_fromaddress';
and
$conf['hooks']['fullname'] = 'imp_set_fullname';

The functions used:
/* This is another example how to get the from address from an ldap 
server. */
 if (!function_exists('imp_expand_fromaddress')) {
     function imp_expand_fromaddress($imp) {
//         $ldapServer = 'ldap.example.com';
         $ldapServer = '192.168.1.163';
         $ldapPort = '389';
         $searchBase = 'ou=people,o=example.com';

         $ds = @ldap_connect($ldapServer, $ldapPort);

         $searchResult = @ldap_search($ds, $searchBase, 'uid=' . 
$imp['user']);
         $information = @ldap_get_entries($ds, $searchResult);
         $name = $information[0]['mail'][0];

         ldap_close($ds);
print $name;
         return (empty($name) ? $imp['user'] : $name);
     }
 }

and:

/* This is another example how to get the user's full name from an ldap 
server.
 * In this example we look if a Spanish name exists and return this or the
 * standard 'cn' entry if not.
 */
 if (!function_exists('imp_set_fullname')) {
     function imp_set_fullname($imp) {
         $ldapServer = '192.168.1.163';
//         $ldapServer = 'ldap.example.com';
         $ldapPort = '389';
         $searchBase = 'ou=people,o=example.com';

         $ds = @ldap_connect($ldapServer, $ldapPort);

         $searchResult = @ldap_search($ds, $searchBase, 'uid=' . 
$imp['user']);
         $information = @ldap_get_entries($ds, $searchResult);
         if ($information[0]['cn;lang-es'][0] != '') {
             $name = $information[0]['cn;lang-es'][0];
         } else {
             $name = $information[0]['cn'][0];
         }

         ldap_close($ds);

         return (empty($name) ? $imp['user'] : $name);
     }
 }

I've deleted all data in mysql prefs for all users an logged in again.
Fullname and Mailaddress where not retrieved from my LDAP-server.

Any hints how to get fullname and mailaddress with these customfunctions 
set?
Greetings
Enno