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(PHP 5, PHP 7 < 7.4.0)
ibase_rollback — Roll back a transaction
$link_or_trans_identifier = null): bool
Rolls 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.
成功时返回 true， 或者在失败时返回 false。
