一个接收问题。。一个支付宝的。。。收不到值。帮忙看看

<?phpsession_start( );
$service = $_SESSION['service'];
$orderId = $_SESSION['orderid'];
$Money = $_SESSION['money'];
$alipaymail = $_SESSION['paymail'];
$alipaykey = $_SESSION['paykey'];
$alipayid = $_SESSION['payid'];
$surl = $_SESSION['surl'];
$paygoodsname = $_SESSION['paygoodsname'];
$paydescription = $_SESSION['paydescription'];
require_once( "alipay_service.php" );
require_once( "alipay_config.php" );$parameter = array(
    "service" => $service,
    "partner" => $partner,
    "return_url" => $return_url,
    "notify_url" => $notify_url,
    "_input_charset" => $_input_charset,
    "subject" => $paygoodsname,
    "body" => $paydescription,
    "out_trade_no" => $orderId,
    "price" => $Money,
    "payment_type" => "1",
    "quantity" => "1",
    "logistics_fee" => "0.00",
    "logistics_payment" => "SELLER_PAY",
    "logistics_type" => "EXPRESS",
    "show_url" => $show_url,
    "seller_email" => $seller_email
);
$alipay = new alipay_service( $parameter, $security_code, $sign_type );
$link = $alipay->create_url( );
session_destroy( );
echo "<script>window.location =\"".$link."\";</script>";
echo "\r\n";
?>