PDO :: commit
PDO :: commit to commit a transaction (PHP 5> = 5.1.0, PECL pdo> = 0.1.0)
Explanation
grammar
bool PDO::commit ( void )
Submit a transaction, the database connection returns to autocommit mode until the next call to PDO :: beginTransaction () starts a new transaction.
return value
Successful return TRUE, or on failure returns FALSE.Examples
Submit a transaction basis
<?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 */ ?>
Submit 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 the use of DDL statement transaction: some will generate an error, and some (including MySQL) Other transaction will automatically be submitted in a DDL statement after the first encounter.