note 23197 added to function.ldap-modify

I used the mod_del method to delete the empty attributes, it works fine. But I cannot delete 3 attributes of my ldap server, the business fax, home and businnes address.. anybody know something? -- http://www.php.net/manual/en/function.ldap-modify.php http://master.php.net/manage/user-notes.php?action=edit+23197 http://master.php.net/manage/user-notes.php?action=delete+23197 http://master.php.net/manage/user-notes.php?action=reject+23197