Você procurou por: rollback (Coreano - Inglês)

rollback (see ingres_rollback()).
disconnect (see ingres_close())

php에서 postgresql의 large object 기능을 사용하려면 그것을 트랜잭션 블럭안에 포함시켜야 한다. 트랜잭션 블럭은 begin 으로 시작해서 commit 혹은 end 로 끝난다. 만약 트랜잭션이 실패하였다면 그 실패한 트랜잭션은 반드시 rollback 혹은 abort 로 끝나야 한다.
the constants below are defined by this extension, and will only be available when the extension has either been compiled into php or dynamically loaded at runtime.

php itself doesn't handle transactions yet. thus if an error occurs no rollback is initiated. if you use components that support transactions you will have to implement the transaction management yourself.
if you use components that support transactions you will have to implement the transaction management yourself.

fbsql_autocommit() returns the current autocommit status. if the optional onoff parameter is given the auto commit status will be changed. with onoff set to true each statement will be committed automatically, if no errors was found. with onoff set to false the user must commit or rollback the transaction using either fbsql_commit() or fbsql_rollback().
with onoff set to true each statement will be committed automatically, if no errors was found.