PDO处理事务部分的报错 :Uncaught exception 'PDOException' with message There is no active transaction

最新推荐文章于 2022-07-25 15:25:00 发布

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本文介绍了一种使用 PHP 的 PDO 扩展进行数据库事务处理的方法。通过设置 PDO 属性并利用 try-catch 结构来确保 SQL 语句的正确执行。如果所有 SQL 语句都成功，则提交事务；若出现错误，则回滚并记录错误信息。

    ###Transaction
        function transaction($sqlQueue)
        {
            //$this->connection();
            if(count($sqlQueue)>0)
            {
                /*
                 * Manual says:
                 * If you do not fetch all of the data in a result set before issuing your next call to PDO::query(), your call may fail. Call PDOStatement::closeCursor() to release the database resources associated with the PDOStatement object before issuing your next call to PDO::query().
                 * */
                $this->result->closeCursor();
                if($this->charset !== NULL)
                {
                    $this->db->exec("SET NAMES ".$this->charset);
                }else{
                    $this->db->exec("SET NAMES utf8");
                }
                try 
                {
                    $this->db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
                    $this->db->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY, true);
                    $this->db->beginTransaction();
                    foreach ($sqlQueue as $sql)
                    {
                        $this->db->exec($sql);  
                    }
                    $this->db->commit();
                    return true;
                } catch (Exception $e) {
                    $this->logWriter->writeLog("事务处理出错:".$e->getMessage()."\nSQL语句:".Utils::arrToString($sqlQueue));
                    $this->db->rollBack();
                    return false;
                }
            }else{
                return false;
            }
        }

转自：http://www.flashj.cn/wp/pdo-transaction-err-in-php.html