[php-src] Issue #9137: PDO_Firebird: begintransaction don't desactivate autocommit

Issue: https://github.com/php/php-src/issues/9137 Author: danielbredasantos ### Description The following code: ```php <?php const SERVER = 'localhost'; const DATABASE = 'DATABASE_TEST'; const USERNAME = 'SYSDBA'; const PASSWORD = 'masterkey'; const CONNECTION_PARAMS = array(PDO::ATTR_PERSISTENT => true, PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION); try { $connection = new PDO('firebird:dbname=' . SERVER . ':' . DATABASE, USERNAME, PASSWORD, CONNECTION_PARAMS); $connection->beginTransaction(); $connection->exec('INSERT INTO TEST (FIELD_1, FIELD_2, FIELD_3, FIELD_4) VALUES (1, true, CURRENT_DATE, \'OK\')'); throw new Exception('Error', 1); // Here the data is already committed $connection->commit(); } catch(Throwable $e) { $connection->rollBack(); echo $e->getMessage(); } ?> ``` Resulted in this output: ``` Data commited without "commit()" execute. ``` But I expected this output instead: ``` Data rollback o enter in catch. ``` ### PHP Version PHP 8.1.2 ### Operating System Windows 11