Autocommit with PDO

问题

The rollback of my transaction doesn't work. How do I set autocommit to false (or 0) in the php script using PDO (I have InnoDB 5.7.18) ?

Here is my code:

     global $bdd;  //defined with PDO

       try {                             
            $bdd->beginTransaction();
            /* my requests */
            $bdd->commit();
        } catch (Exception $e) {
            $bdd->rollBack();
            return $e->getMessage();
        }

        return true;
    }

回答1:

 $db = new PDO('mysql:dbname=employee');
 $db->setAttribute(PDO::ATTR_AUTOCOMMIT,0);
 var_dump($db->query('SELECT @@autocommit')->fetchAll());

回答2:

I solved my problem myself: a few of my tables were in MyISAM (whereas the majority are in InnoDB -> I work with an old database system...); so the rollback didn't work for these tables. Once I changed them into InnoDB, it worked. Thanks to everybody for the help !

回答3:

Try setting the following attribute:

$bdd->setAttribute(PDO::ATTR_AUTOCOMMIT,0);

来源：https://stackoverflow.com/questions/45234859/autocommit-with-pdo