php - PDO php 两个语句在一个函数中，如果都为真，则提交，否则回滚

Question

使用 PHP PDO，有两个语句，想法是 if both stmt1 和 stmt2 是真的，它应该提交，否则它应该回滚，但正如我在这里看到的，它没有回滚，如果 stmt1 是真的，它会评论，即使 stmt2 是假的。

这是函数:

 public function insert() {

            //  try { $stmt1 = $this->conn->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
            $this->conn->beginTransaction();
            $stmt1 = $this->conn->prepare("INSERT into table1 (item,itemname,price)VALUES (:name, :itemname, :price)");

            $stmt1->bindParam(':name' ,                  $this->name);
            $stmt1->bindParam(':itemname' ,              $this->itemname);
            $stmt1->bindParam(':price' ,                 $this->price);
            $stmt1->execute();

            $stmt2 = $this->conn->prepare("INSERT into table2 (item,itemname,price) VALUES (:name, :itemname, :price)");

            $stmt2->bindParam(':name' ,                  $this->name);
            $stmt2->bindParam(':itemname' ,              $this->itemname);
            $stmt2->bindParam(':price' ,                 $this->price);
            $stmt2->execute();

            //} catch(PDOException $r){ echo $r->__toString();exit; }
            if($stmt1 && $stmt2){
                $this->conn->commit(); //This will save  changes
            } else {
                $this->conn->rollBack(); //This will undo  changes
            }

        }

    }

这里我检查了这个函数，如果 stmt1 为真，即使 stmt2 为假，它也会运行并将数据插入表一

问题:我如何保持运行 stmt1 然后运行 ​​stmt2 的状态，如果 stmt1 为假，则不应运行 stmt2，如果 stmt2 为假，则还应回滚 stmt1。

提前致谢。

Answer 1

试试这个:

public function insert() {

        //  try { $stmt1 = $this->conn->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION );
        $this->conn->beginTransaction();
        $stmt1 = $this->conn->prepare("INSERT into table1 (item,itemname,price)VALUES (:name, :itemname, :price)");

        $stmt1->bindParam(':name' ,                  $this->name);
        $stmt1->bindParam(':itemname' ,              $this->itemname);
        $stmt1->bindParam(':price' ,                 $this->price);
        //$stmt1->execute();

        $stmt2 = $this->conn->prepare("INSERT into table2 (item,itemname,price) VALUES (:name, :itemname, :price)");

        $stmt2->bindParam(':name' ,                  $this->name);
        $stmt2->bindParam(':itemname' ,              $this->itemname);
        $stmt2->bindParam(':price' ,                 $this->price);
        //$stmt2->execute();

        //} catch(PDOException $r){ echo $r->__toString();exit; }
        if($stmt1->execute() && $stmt2->execute()){
            $this->conn->commit(); //This will save  changes
        } else {
            $this->conn->rollBack(); //This will undo  changes
        }

    }

}