(PHP 5, PHP 7 < 7.4.0)
ibase_rollback — Roll back a transaction
link_or_trans_identifier
If called without an argument, this function rolls back the default transaction of the default link. If the argument is a connection identifier, the default transaction of the corresponding connection will be rolled back. If the argument is a transaction identifier, the corresponding transaction will be rolled back.
Retorna true
em caso de sucesso ou false
em caso de falha.