Description:
------------
Fatal error: Allowed memory size of X bytes exhausted (tried to allocate 4294967296 bytes)

The error above is being shown when using mssql_fetch_batch on two different connections. Look at the test script example.

Test script:
---------------
<?php

function fetchAssoc($link)
{
    $res = mssql_fetch_assoc($link);

    if ($res === false) {
        if (mssql_fetch_batch($link) > 0) {
            $res = mssql_fetch_assoc($link);
        }
    }
    return $res;
}

$link1 = mssql_connect('host', 'user', 'pwd');
mssql_select_db('db', $link1);

$link2 = mssql_connect('host', 'user', 'pwd');
mssql_select_db('db', $link2);

$result1 = mssql_query("SELECT TOP 2 * FROM table", $link1, 1);

while ($row1 = fetchAssoc($result1)) {
    echo "Row from 1 result\n";

    $result2 = mssql_query("SELECT TOP 2 * FROM table2", $link2);
    while ($row2 = fetchAssoc($result2)) {
        echo "Row from 2 result\n";
    }
}

echo "Done";

Expected result:
----------------
Row from 1 result
Row from 2 result
Row from 2 result
Row from 1 result
Row from 2 result
Row from 2 result
Done

Actual result:
--------------
Row from 1 result
Row from 2 result
Row from 2 result

Fatal error: Allowed memory size of X bytes exhausted (tried to allocate 4294967296 bytes)