(PHP 4, PHP 5)
ldap_mod_del — Delete attribute values from current attributes
$link_identifier
   , string $dn
   , array $entry
   )
   Removes one or more attributes from the specified dn.
   It performs the modification at the attribute level as opposed to the object
   level. Object-level deletions are done by the 
    ldap_delete() function.
  
link_identifier
     An LDAP link identifier, returned by ldap_connect().
dn
     The distinguished name of an LDAP entity.
entry
     
   成功时返回 TRUE, 或者在失败时返回 FALSE。