PHP mysqli_rollback()Functions

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Turn off auto-commit, do some queries, commit the query, then roll back the current transaction:

<?php 
// 假定数据库用户名：root，密码：123456，数据库：EXAMPLE 
$con=mysqli_connect("localhost","root","123456","EXAMPLE"); 
if (mysqli_connect_errno($con)) 
{ 
    echo "连接 MySQL 失败: " . mysqli_connect_error(); 
} 

// 关闭自动提交
mysqli_autocommit($con,FALSE);

// 插入数据
mysqli_query($con,"INSERT INTO websites (name, url, alexa, country)
VALUES ('百度','https://www.baidu.com/','4','CN')");
mysqli_query($con,"INSERT INTO websites (name, url, alexa, country)
VALUES (Facebook','https://www.facebook.com/','2','USA')");

// 提交事务
mysqli_commit($con);

//回滚事务
mysqli_rollback($con);

// 关闭连接
mysqli_close($con);
?>

Definition and Usage

The mysqli_rollback() function rolls back the current transaction for the specified database connection.

Tip:Please seemysqli_commit() function, used to commit the current transaction for the specified database connection. Please see mysqli_autocommit()function, used to turn on or off auto-commit of database modifications.

Syntax

mysqli_rollback(connection);

Parameters Description
connection Required. Specifies the MySQL connection to use.

Technical Details

Return value: Returns TRUE on success, FALSE on failure.
PHP Version: 5+

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