#108 Undefined property of ADODB_pdo

[Anonymous]

Sorry, I am not good at English.

1. Sample code
---
require_once 'adodb/adodb.inc.php';

$conn = ADONewConnection('pdo_mysql://user:pass@localhost/database');
$conn->BeginTrans();

<<- Notice: Undefined property: ADODB_pdo_mysql::$_driver in /path/to/adodb/drivers/adodb-pdo.inc.php on line 275

2. Problem
----
(adodb-pdo.inc.php)
275 if(method_exists($this->_driver, 'BeginTrans'))
276 return $this->_driver->BeginTrans();

How if it initializes it?
---
(adodb-pdo.inc.php)
class ADODB_pdo extends ADOConnection {
...
var $_driver = false;