(PHP 4 >= 4.0.6, PHP 5)
fbsql_rollback — Rollback a transaction to the database
([ resource $link_identifier
This command is only needed if autocommit is set to false.
A FrontBase link identifier
returned by fbsql_connect() or
If optional and not specified,
the function will try to find an open link to the FrontBase server and if no
such link is found it will try to create one as if
fbsql_connect() was called with no arguments
Returns TRUE on success or FALSE on failure.