Description:
------------
If you create two query of multi-row statements in one .php file and you assign 
them 
to the same variable after processing one of them, the second query will give only 
result of only ONE statement.

If you assign the result of query to another variable, the result will be correct.

So    $another_var_name = $conn->query("SELECT 1 as one; SELECT 2 as two; SELECT 3 
as three;");

will work in Test script, otherwise result will be wrong.

Test script:
---------------
               $q = $conn->query("SELECT 1 as one; SELECT 2 as two; SELECT 3 as three;");
           
                do
                {
                   $r=$q->fetchAll(PDO::FETCH_ASSOC);
                   echo "<br />";
                   print_r($r);       
                   
                }while($q->nextRowset());
                
           
               $q = $conn->query("SELECT 1 as one; SELECT 2 as two; SELECT 3 as three;");
           
                do
                {
                   $r=$q->fetchAll(PDO::FETCH_ASSOC);
                     echo "<br />";
                   print_r($r);       
                   
                }while($q->nextRowset());   

Expected result:
----------------
Array ( [0] => Array ( [one] => 1 ) )
Array ( [0] => Array ( [two] => 2 ) )
Array ( [0] => Array ( [three] => 3 ) )
Array ( [0] => Array ( [one] => 1 ) )
Array ( [0] => Array ( [two] => 2 ) )
Array ( [0] => Array ( [three] => 3 ) ) 

Actual result:
--------------
Array ( [0] => Array ( [one] => 1 ) )
Array ( [0] => Array ( [two] => 2 ) )
Array ( [0] => Array ( [three] => 3 ) )
Array ( [0] => Array ( [one] => 1 ) )