how to execute sql server stored procedure on php?

Question

i want to know why i cannot call any stored procedure on php file it always return false but when i call it on sql server directly, it shows my data

here is my php:

include ($_SERVER['DOCUMENT_ROOT'] . '/simda/classes/koneksi.php');
global $conn;
$kon = new koneksi();
$conn = $kon->bukaKoneksi();
$params = array();
$query = "EXEC dbo.RptSPJ_Pengeluaran '2013','1','1','1','0','1','1'";

$options = array("Scrollable" => SQLSRV_CURSOR_KEYSET);
$rs_test = sqlsrv_query($conn, $query, $params, $options);
if ($rs_test != NULL) {
    $num_rows = sqlsrv_num_rows($rs_test);
    echo $num_rows;
}
else {
    echo 'wrong';
}

if i echo the query and execute it on sql server, it shows my data is there anything wrong? please help me thank you