====== rollbackTrans ======
~~NOTOC~~
<WRAP right box>
== Syntax ==
  void rollbackTrans()
</WRAP>
===== Description =====
The function ''rollbackTrans()'' forces a roll back of a granular transaction.
 
===== Usage =====
<code php>
/*
 * Assume database connection
 */
$db->startTrans();

/*
 * some reason to rollback transaction
 */
if ($someError)
    $db->rollbackTrans();
else
    $db->commitTrans()
</code>