# PDO::commit

(PHP 5 >= 5.1.0, PHP 7, PECL pdo >= 0.1.0)

PDO::commit — Commits a transaction

### Description

public PDO::commit ( void ) : bool

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

### Return Values

Returns `TRUE` on success or `FALSE` on failure.

### Errors/Exceptions

Throws a PDOException if there is no active transaction.

> Note: An exception is raised even when the `PDO::ATTR_ERRMODE` attribute is not `PDO::ERRMODE_EXCEPTION`.

### Examples

Example #1 Committing a basic transaction

`<?php
/* Begin a transaction, turning off autocommit */
$dbh->beginTransaction();
/* Insert multiple records on an all-or-nothing basis */
$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,
));
}
/* Commit the changes */
$dbh->commit();
/* Database connection is now back in autocommit mode */
?>`

Example #2 Committing a DDL transaction

`<?php
/* Begin a transaction, turning off autocommit */
$dbh->beginTransaction();
/* Change the database schema */
$sth = $dbh->exec("DROP TABLE fruit");
/* Commit the changes */
$dbh->commit();
/* Database connection is now back in autocommit mode */
?>`

> Note: Not all databases will allow transactions to operate on DDL statements: some will generate errors, whereas others (including MySQL) will automatically commit the transaction after the first DDL statement has been encountered.

### See Also

- PDO::beginTransaction() - Initiates a transaction
- PDO::rollBack() - Rolls back a transaction
- Transactions and auto-commit