PHP pdo 事务回滚代码实例
$this->beginTransaction();
$this->exec('update people set age=2');
//$step1 = mysql教程_error();//你的类里，改成如果执行sql错误，获取错误代码，相应的函数
$this->exec('INSERT INTO course (course,num) VALUES ("数学",100)');
//$step2 = mysql_error();
if (!$step1 && !$step2)
{
$this->commit();
}
else
{
$this->rollBack();
}
