Použijte tuto třídu přesně tak, jak byste použili PDO
třída.
class DB extends PDO {
protected $_config = array();
protected $_connected = false;
public function __construct($dsn, $user = null, $pass = null, $options = null) {
//Save connection details for later
$this->_config = array(
'dsn' => $dsn,
'user' => $user,
'pass' => $pass,
'options' => $options
);
}
public function checkConnection() {
if (!$this->_connected) {
extract($this->_config);
parent::__construct($dsn, $user, $pass, $options)
$this->_connected = true;
}
}
public function query($query) {
$this->checkConnection();
return parent::query($query);
}
public function exec($query) {
$this->checkConnection();
return parent::exec($query);
}
//etc.
}