PDO::commit

PHP PDO Reference Manual

PDO::commit commits a transaction (PHP 5 >= 5.1.0, PECL pdo >= 0.1.0)

Description

Syntax

bool PDO::commit ( void )

Commits a transaction, returning the database connection to auto-commit mode until the next call to PDO::beginTransaction() starts a new transaction.

Return Values

Examples

Commit a basic transaction

<?php
/* 开始一个事务，关闭自动提交 */
$dbh->beginTransaction();

/* 在全有或全无的基础上插入多行记录（要么全部插入，要么全部不插入） */
$sql = 'INSERT INTO fruit
    (name, colour, calories)
    VALUES (?, ?, ?)';

$sth = $dbh->prepare($sql);

foreach ($fruits as $fruit) {
    $sth->execute(array(
        $fruit->name,
        $fruit->colour,
        $fruit->calories,
    ));
}

/* 提交更改 */
$dbh->commit();

/* 现在数据库连接返回到自动提交模式 */
?>

Commit a DDL transaction

<?php
/*  开始一个事务，关闭自动提交 */
$dbh->beginTransaction();

/* Change the database schema */
$sth = $dbh->exec("DROP TABLE fruit");

/* 更改数据库架构 */
$dbh->commit();

/* 现在数据库连接返回到自动提交模式 */
?>

Note:Not all databases allow DDL statements to be used in transactions: some will generate errors, while others (including MySQL) will automatically commit the transaction after encountering the first DDL statement.

PHP PDO Reference Manual