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Detailed explanation of the code case of transaction rollback implemented by php PDO

黄舟
黄舟Original
2017-03-24 09:42:261022browse

This article mainly introduces the transaction rollback function implemented by php PDO, and analyzes the relevant SQL statements and related SQL statements of PDO-based transaction rollback function based on PDO operation based on specific examples. For operational skills, friends in need can refer to

. This article describes the transaction rollback implemented by php PDO. Share it with everyone for your reference, the details are as follows:

$servername="localhost";
$username="root";
$password="admin";
$dbname="test";
try{
  $conn=new PDO("mysql:host=$servername;dbname=$dbname",$username,$password);
  $conn->setAttribute(PDO::ATTR_ERRMODE,PDO::ERRMODE_EXCEPTION);
  //开始事务
  $conn->beginTransaction();
  $conn->exec("INSERT INTO `hello`(`firstname`,`lastname`,`email`)VALUES('YE','XIAMING','yexianming@163.com')");
  $conn->exec("INSERT INTO `hello`(`firstname`,`lastname`,`email`)VALUES('YE','CONG','yecong@163.com')");
  $conn->exec("INSERT INTO `hello`(`firstname`,`lastname`,`email`)VALUES('FANG','MENG','fangmeng@168.com')");
  //提交事务
  $conn->commit();
  echo "New records created successfully!";
}catch(PDOException $e){
   //回滚事务
   $conn->rollBack();
   echo $sql."<br>".$e->getMessage();
}
$conn=NULL;

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