PDO::beginTransaction
(no version information, might be only in CVS)
PDO::beginTransaction --
Initiates a transaction
Description
bool
PDO::beginTransaction ( void )
警告 |
這個函數是實驗性質的。這個函數的行為、名稱、和關於此函數的任何其他文件在未來PHP的發行中可能會在不通知的情況下改變。 使用此延伸需自行承擔風險。 |
Turns off autocommit mode. Call PDO::commit() or
PDO::rollback() to end the transaction and return to
autocommit mode.
範例
範例 1. Roll back a transaction
<?php /* Begin a transaction, turning off autocommit */ $dbh->beginTransaction();
/* Change the database schema and data */ $sth = $dbh->exec("DROP TABLE fruit"); $sth = $dbh->exec("UPDATE dessert SET name = 'hamburger'");
/* Recognize mistake and roll back changes */ $dbh->rollBack();
/* Database connection is now back in autocommit mode */ ?>
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參考
PDO::commit() |
PDO::rollBack() |