This function is
EXPERIMENTAL. The behaviour of this function, the
name of this function, and anything else documented about this
function may change without notice in a future release of PHP.
Use this function at your own risk.
When issued against databases that support transactions,
PDO::rollBack() rolls back any work in progress and
and returns the connection state to autocommit mode.
You must issue PDO::beginTransaction() to set the
connection state to manual commit mode before issuing
PDO::rollBack() has any effect.
Examples
Example 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 */ ?>
See Also
PDO::beginTransaction()
PDO::commit()
Php pdo rollback Function syntax tag
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Php pdo rollback syntax tutorial
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