(PHP 3>= 3.0.8, PHP 4 , PHP 5)
成功回傳TRUE失敗回傳FALSE。
This function adds attribute(s) to the specified dn. It performs the modification at the attribute level as opposed to the object level. Object-level additions are done by the ldap_add() function.
備注:這個函數可安全的使用於二進位。