Untitled

<?phptry {  $dbh = new PDO('odbc:SAMPLE', 'db2inst1', 'ibmdb2',       array(PDO::ATTR_PERSISTENT => true));  echo "Connected\n";  $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);  $dbh->beginTransaction();  $dbh->exec("insert into staff (id, first, last) values (23, 'Joe', 'Bloggs')");  $dbh->exec("insert into salarychange (id, amount, changedate)       values (23, 50000, NOW())");  $dbh->commit();  } catch (Exception $e) {  $dbh->rollBack();  echo "Failed: " . $e->getMessage();}?>