ช่วยดู code โชว์รายการสินค้า ให้หน่อยมันไม่โชว์ข้อมูลเลย

<?
$con = mysql_connect("localhost","root","1234");
$db = mysql_select_db("onlineshop",$con)or die ('ติดต่อฐานข้อมูลไม่ได้ ');
mysql_query("SET NAMES tis620");
$sql = "SELECT * FROM product " ;
$result = mysql_query($sql);
$num = mysql_num_rows($result);
$perPage = 4;
$page = $_GET["page"];
if(!$_GET["page"]){
  $page=1;
}
$prevPage = $page-1;
$nextPage = $Page +1;
$PageStart = (($perPage*$page)-$perPage);
if($numRow <= $perPage ){
   $numPage=1;
}else if(($numRow%$perPage)==0){
   $numPage =($numRow/$perPage);
}else{
   $numPage =($numRow/$perPage)+1;
   $numPage = (int)$numPage;
}
$sql .= "ORDER BY pid ASC LIMIT $PageStart";
$result = mysql_query($sql);
echo "<table border =\"0\" cellspacing =\"1\" cellpadding =\"1\"><tr>";
$intRow = 0;
while ($row = mysql_fetch_array($result)){
$productID = $row['pid'];
$productName = $row['pname'];
$productDes = $row['description']; 
$productPrice = $row['price'];
$productType = $row['type'];
$productNum = $row['num'];
$productImage = $row['image'];
echo "<td>";
$intRow++;
?>
     <center><img src="pic/<?=$productImage ?>" width="180"  height="170" >
    <? echo"  รหัสสินค้า   : ". $productID."<br>  ชื่อสินค้า   : " .$productName."<br>  ราคา   : ".$productPrice."<br><a href='minishow.php?$pid=$prodectID'> รายละเอียดสินค้า</a>   <a href='minishow.php?$pid=$prodectID'> หยิบลงตะกร้า</a>" ?>
	</center>
<?
echo "</td>";
if(($intRow)%2==0){
echo"</tr>";
}
echo "</tr></table>";
?>
<br />
Total <?= $numRow; ?>  Record  : <?= $numPage; ?> Page :
<?
if($prevPage){
   echo "[ <a href ='$_SERVER[SCRIPT_NAME]?Page = $nextPage'>Next>>]</a>";
}
}
mysql_close();
?>