(PECL sam >= 0.1.0)
SAMConnection::rollback — Cancels (rolls back) an in-flight unit of work.
Rolls back an in-flight unit of work.
This method returns FALSE if an error occurs.
Пример #1 Cancelling an in-flight unit of work
<?phpif (!$conn->rollback()) { // The rollback failed! echo "Rollback failed ($conn->errno) $conn->error";}?>