ดึงข้อมูลจากตารางในฐานข้อมูล mysql มาแสดงไม่ได้ครับ

<?php 
	session_start();
	include "connection.php";
	$id = $_GET["id"];
	
	$sql = "SELECT * FROM product inner join type_product
on product.type_product_id  = type_product.type_product_id  
where product.product_id  = '$id'
order by product.product_id Desc";

	$objQuery = mysql_query($sql)  or die ("Error Query [".$sql."]"); echo mysql_error();
  $rs = mysql_fetch_array($objQuery)
  
   
?>

<link rel="stylesheet" media="screen, projection" href="./dist/drift-basic.css">
    <style type="text/css">
      body {
        font-family: Helvetica Neue, Arial, sans;
        margin-top: 2em;
        background: #FAFAFA;
      }

      .wrapper {
        margin: 0 auto;
        width: 860px;
      }

      .drift-demo-trigger {
        width: 40%;
        float: left;
      }

      .detail {
        position: relative;
        width: 55%;
        margin-left: 5%;
        float: left;
      }

      h1 {
        color: #013C4A;
        margin-top: 1em;
        margin-bottom: 1em;
      }

      p {
        max-width: 32em;
        margin-bottom: 1em;
        color: #23637f;
        line-height: 1.6em;
      }

      p:last-of-type {
        margin-bottom: 2em;
      }

      a {
        color: #00C0FA;
      }

      .ix-link {
        display: block;
        margin-bottom: 3em;
      }

      @media (max-width: 900px) {
        .wrapper {
          text-align: center;
          width: auto;
        }

        .detail, .drift-demo-trigger {
          float: none;
        }

        .drift-demo-trigger {
          max-width: 100%;
          width: auto;
          margin: 0 auto;
        }

        .detail {
          margin: 0;
          width: auto;
        }

        p {
          margin: 0 auto 1em;
        }

        .responsive-hint {
          display: none;
        }
      }
    </style>
    
 
 <div class="wow flipInY" >
					<div class="section-heading text-center">
					<h4 class="h-bold">รายละเอียดสินค้า " <?=$rs[product_name]?> "</h4>
					<div class="divider-header"></div>
					</div>

		</div>
        



<form action="cart_.php#work" method="post">

<div class="row">
<div class="wrapper">
      <img class="drift-demo-trigger" data-zoom="admin/img/product/<?=$rs[product_image]?>" src="admin/img/product/<?=$rs[product_image]?>">
      
      
      
      <div class="detail">
      <div class="col-md-12">
      <table width="100%" border="0">
  <tr>
    <td width="20%"><strong>รหัสสินค้า</strong></td>
    <td><?=$rs[product_id]?></td>
  </tr>
  <tr>
    <td><strong>หมวดสินค้า</strong></td>
    <td><?=$rs[type_name]?></td>
  </tr>
  <tr>
    <td><strong>ชื่อสินค้า</strong></td>
    <td><?=$rs[product_name]?></td>
  </tr>
  <tr>
    <td><strong>ราคา</strong></td>
    <td><?=$rs[product_price]?> บาท</td>
  </tr>
  <tr>
    <td><strong>น้ำหนัก</strong></td>
    <td><?=$rs[product_weight]?> กรัม    </td>
  </tr>
  <tr>
    <td valign="top"><strong>รายละเอียด</strong></td>
    <td><?=$rs[product_detail]?>  </td>
  </tr>
  <tr>
    <td valign="top">&nbsp;</td>
    <td><? if($rs[product_stock] <= 0)
{
	echo"<font color='red'>สินค้าหมดชั่วคราว</font>";
}
?>
<br>                        
</td>
  </tr>
  
  <tr>
    <td valign="top">&nbsp;</td>
    <td>  </td>
  </tr>
  
      </table>
      
      
      <div class="row" >
<div class="col-md-3" align="center">

 
 
 <div id="fb-root"></div>
<script>(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) return;
  js = d.createElement(s); js.id = id;
  js.src = "//connect.facebook.net/th_TH/sdk.js#xfbml=1&version=v2.0";
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>

<div class="fb-share-button" data-href="http://www.scomputer.in.th/?file=product_detail.php&id=<?=$id?>" data-layout="button_count" ></div>


</div>
     <div class="col-md-3" align="right" > 
     <input type=button onClick='window.history.back()' value='ย้อนกลับ' class="btn btn-red">
     </div>
     
      <div class="col-md-3" > 
      <? if($rs[product_stock] > 0)
{ ?>
     <input type="submit" name="add_to_cart" class="btn btn-info" value="เพิ่มสินค้าลงตระกร้า" />
     <? }?>
     </div></div>

    </div>
    </div>
    
    <input type="hidden" name="h_product_id" value="<?=$rs['product_id']?>">
    <input type="hidden" name="h_product_price" value="<?=$rs['product_price']?>">
    <input type="hidden" name="h_weight" value="<?=$rs['product_weight']?>">
    <input type="hidden" name="h_product_name" value="<?=$rs['product_name']?>">
    
  
    </div>
    </div>
    
  <script src="dist/Drift.js"></script>
  <script>
      new Drift(document.querySelector('.drift-demo-trigger'), {
        paneContainer: document.querySelector('.detail'),
        inlinePane: 400,
        inlineOffsetY: -85,
        containInline: true
      });
    </script>
</form>



<div style="padding:7%"></div>

<div class="col-xs-12">      
           <div class="service-box">
        		<div class="accordion" id="accordionArea">
                    <div class="accordion-group">
                    <div class="accordion-heading accordionize">
                    <a class="accordion-toggle" data-toggle="collapse" data-parent="#accordionArea" href="#oneArea">
                                รีวิวสินค้า
                    <i class="fa fa-chevron-down"></i>
                    </a>
                        </div>
                        
                        <div id="oneArea" class="accordion-body collapse">
                        
  <? if(isset($_SESSION['member_id']))
	{ 
	
	$member_id = $_SESSION['member_id'];
	$strSQL = "SELECT * FROM member WHERE member_id = '$member_id' ";
	$objQuery = mysql_query($strSQL);
	$objResult = mysql_fetch_array($objQuery);
	?>                      
                        
       <form action="comment_product.php" method="post">
                        
                        
                        
                      <label>ความคิดเห็นที่มีต่อสินค้า</label>  <textarea name="comment_detail" type="text" class="form-control"  rows="3" ></textarea>
                        
                        <label>ชื่อจริง</label><input name="member_id"  type="text" class="form-control"  placeholder="ชื่อผู้ร่วมรีวิว" value="<?=$objResult["username"];?> " readonly="readonly" >
                        <br>
                        <button type="submit" class="btn btn-info">แสดงความคิดเห็น</button>  
                        <button type="reset" class="btn btn-danger">ยกเลิก </button>
                        
                        <input type="hidden" name="product_id" value="<?=$rs[product_id]?>">
                        
                     </form> <? } ?>
                  
<div style="padding:30px"></div>
   <h3>ความคิดเห็นสินค้า</h3>
                            
                      
                            
<? 	

$product_id = $rs['product_id'];
$i = 1 ;			

$q="SELECT * FROM comment INNER JOIN member ON member.member_id = comment.member_id WHERE comment.product_id = '$product_id' ORDER BY comment.comment_id DESC ";
     	$qr=mysql_query($q);


$Num_Rows=mysql_num_rows($qr);
if($Num_Rows==0){

echo "ยังไม่มีความคิดเห็นต่อสินค้านี้"; }
 
 	
while($rs=mysql_fetch_array($qr)){
?>



          ความคิดเห็นที่ <?=$i?>
           <p/><?=$rs['comment_detail']?> 
            <p/>ผู้แสดงความคิดเห็น คุณ : <?=$rs['username']?> 
            <hr>
              
            <? $i++; } ?>


</div>
</div>
</div>
</div>
</div>