public function bindParameter($name, &$value, $dataType = null, $length = null)
{
$this->prepare();
if ($dataType === null) {
$this->_statement->bindParam($name, $value);
} else {
if ($length === null) {
$this->_statement->bindParam($name, $value, $dataType);
} else {
$this->_statement->bindParam($name, $value, $dataType, $length);
}
}
}