PHP mysqli rollback() 函数

示例 - 面向对象风格

关闭自动提交，进行一些查询，提交查询，然后回滚当前事务：

<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");

if ($mysqli -> connect_errno) {
echo "Failed to connect to MySQL: " . $mysqli -> connect_error;
exit();
}

// Turn autocommit off
$mysqli -> autocommit(FALSE);

// Insert some values
$mysqli -> query("INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Peter','Griffin',35)");
$mysqli -> query("INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Glenn','Quagmire',33)");

// Commit transaction
if (!$mysqli -> commit()) {
echo "Commit transaction failed";
exit();
}

// Rollback transaction
$mysqli -> rollback();

$mysqli -> close();
?>

查看底部的程序样式示例。

定义和用法

rollback() / mysqli_rollback() 函数回滚指定数据库连接的当前事务。

提示：另请参阅犯罪（）函数，提交当前事务，以及自动提交()函数，它打开或关闭自动提交数据库修改。

语法

面向对象风格：

$mysqli -> rollback( flags, name)

程序风格：

mysqli_rollback( connection, flags, name)

参数值

Parameter	Description
connection	Required. Specifies the MySQL connection to use
flags	Optional. A constant: MYSQLI_TRANS_COR_AND_CHAIN - Appends "AND CHAIN" MYSQLI_TRANS_COR_AND_NO_CHAIN - Appends "AND NO CHAIN" MYSQLI_TRANS_COR_RELEASE - Appends "RELEASE" MYSQLI_TRANS_COR_NO_RELEASE - Appends "NO RELEASE"
name	Optional. ROLLBACK/name/ is executed if this parameter is specified

技术细节

返回值：	成功则为真。失败时为 FALSE
PHP 版本：	5+
PHP 变更日志：	PHP 5.5：添加了旗帜和姓名参数

示例 - 程序风格

关闭自动提交，进行一些查询，提交查询，然后回滚当前事务：

<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");

if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit;
}

// Turn autocommit off
mysqli_autocommit($con,FALSE);

// Insert some values
mysqli_query($con,"INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Peter','Griffin',35)");
mysqli_query($con,"INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Glenn','Quagmire',33)");

// Commit transaction
if (!$mysqli_commit($con)) {
echo "Commit transaction failed";
exit();
}

// Rollback transaction
mysqli_rollback($con);

// Close connection
mysqli_close($con);
?>

❮ PHP mysqli 参考