Description:
------------
---
From manual page: http://www.php.net/function.sqlsrv-begin-transaction.php
---
I've used SQLSRV driever ver.2 with PHP. I must use SQL Transactions in my codes. 
But I get this error sometimes:
"New transaction is not allowed because there are other threads running in the 
session"

I updated SQL SERVER Native client too, but it could not solve anything.

Test script:
---------------
<?php
// This is my psudo code
if (sqlsrv_begin_transaction( $sqlsrv->sqlsrvLink ) === true) {

   $firstQuery = sqlsrv_query($stmt1);
   if (!$firstQuery) {
      sqlsrv_rollback();
   } else {
      $nextQuery = sqlsrv_query($stmt2);
      if (!$nextQuery) {
         sqlsrv_rollback();
      } else {
         sqlsrv_commit();
      }
   }

}
?>