สอบถามเรื่องการเชื่อมต่อระบบ payment gateway ให้ส่งรายละเอียดผ่านทาง nusoap

<? 
require_once('nusoap/lib/nusoap.php'); 

$ws_client = new nusoap_client('http://11.11.111.11/test_service/t2p_service.php?wsdl',true); 

$user="abc";//
$pass="xxx";//
$refno=$id;//
$price_total=$total_price;
$product=$bid_type;
$member_id;// member id ของ merchant ใส่หรือไม่ใส่ก็ได้

                                  

  $result = $ws_client->call('check_merchant', array('merchant_user' => $user,'merchant_pass' => $pass,'ref_no' => $ref_no,'price_total' => $price_total,'product' => $product,'member_id'=>$member_id)); 
  
  
  
 $payment_id= $$result['order_id'];/
  

?>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

<br />
<br />
<div align="left" style="margin-left:35px; height:305px">
  <table width="100%" border="0">
    <tr>
      <td width="50%">เลขที่ใบเสร็จ</td>
      <td width="50%"><?=$id ?></td>
    </tr>
    <tr>
      <td>รายการสินค้า</td>
      <td><?=$bid_type ?></td>
    </tr>
    <tr>
      <td>จำนวน</td>
      <td><?=$total_b?> Bids</td>
    </tr>
    <tr>
      <td>ราคา</td>
      <td><?=total_price ?></td>
    </tr>
    <tr>
      <td>วีธีชำระเงิน</td>
      <td>
	  		<? 
	  			$qry = mysql_query("Select * From payments_mode Where pay_id='$mytran[pay_id]' ");
				$arr = mysql_fetch_array($qry);
				echo $arr['pay_name'];
			?>
	  </td>
    </tr>
    <tr>
      <td>&nbsp;</td>
      <td><form id="form1" name="form1" method="post" action="http://11.11.111.11/test_service/form_send.php">
      <input type="hidden" name="order_id" id="order_id" value="<?=$payment_id?>" />
      <input type="hidden" name="url" value="http://www.xxxx.com/pay.php" /><!-- url example  -->
       <input type="image" src="images/one2call.png" style="width:138px; height:44px;" border="0" name="submit" >
      </form></td>
      
    </tr>
  </table>
  <br />