Description of problem:
-----------------------
One of our dev teams is moving an application from RHEL 6.8 / PHP 5.3.3 to RHEL 7.2 / PHP 5.4.16. 

They ran into the the following upstream PHP bug:
https://bugs.php.net/bug.php?id=64522

We can reproduce the issue with our in-house code and also with the simple test script from the upstream bug.

Version-Release number of selected component (if applicable):
-------------------------------------------------------------
php.x86_64                  5.4.16-36.3.el7_2      @rhel-7-server-rpms
php-pdo.x86_64              5.4.16-36.3.el7_2      @rhel-7-server-rpms
php-mssql.x86_64            5.4.16-4.el7           @epel 

How reproducible:
-----------------
Run the following test script (from upstream bug) against Microsoft SQL server (tested with 2012 SP3):

$pdo=new PDO('dblib:host=db;dbname=admin;charset=UTF-8',$username,$password);

$statement=$pdo->query('select 1+1 as result');
print_r($statement->fetchAll());
$statement->closeCursor();

$statement=$pdo->query('select 1+1 as result');
print_r($statement->fetchAll());


Actual results:
---------------
Array
(
    [0] => Array
        (
            [result] => 2
            [0] => 2
        )

)
Array
(
    [0] => Array
        (
            [result] => 2
            [0] => 2
        )

)

Expected results:
-----------------
Array
(
    [0] => Array
        (
            [result] => 2
            [0] => 2
        )

)
Array
(
)

Additional info:
----------------
-

Thanks a lot for looking into this.

Kind regards,
Martin