Description:
------------
---
From manual page: http://www.php.net/pdo.intransaction
---

The note for this page claims it is only supported in PostgreSQL. I am getting 
positive results in MySQL.

This issue was mentioned with MySQL 5 in a previous bug report in 2007.

Cheers

Test script:
---------------
var_dump($pdo->inTransaction());
$pdo->beginTransaction();
var_dump($pdo->inTransaction());

For the above I get:

int 0
int 1