ช่วยดูโค๊ดให้หน่อยครับ มันไม่ยอมเก็บลงฐานข้อมูลให้

  <?php
                            $total_price = 0;
                            $num = 0;
                            while ($meResult = mysql_fetch_assoc($meQuery))
                            {
                                $key = array_search($meResult['id'], $_SESSION['cart']);
                                $total_price = $total_price + ($meResult['Pd_Price'] * $_SESSION['qty'][$key]);
                   ?>
          <tr>
            <td align="center"><?php echo $meResult['Pd_ID']; ?></td>
            <td><?php echo $meResult['Pd_Name']; ?></td>
            <td><?php echo $meResult['Pd_Description']; ?></td>
            <td align="center"><?php echo $_SESSION['qty'][$key]; ?>
              <input type="hidden" name="qty" value="<?php echo $_SESSION['qty'][$key]; ?>" />
              <input type="hidden" name="product_id[]" value="<?php echo $meResult['id']; ?>" />
              <input  type="hidden" name="Pd_Price1[]" value="<?php echo $meResult['Pd_Price']; ?>" />
              
              </td>
            <td align="center"><?php echo number_format($meResult['Pd_Price'], 2); ?></td>
            <td align="center"><?php echo number_format(($meResult['Pd_Price'] * $_SESSION['qty'][$key]), 2); ?></td>
          </tr>
          <?php
								$num++;
								}
                            ?>
          <tr>
            <td colspan="8" style="text-align: right;"  name=""><h4>จำนวนเงินรวมทั้งหมด <?php echo number_format($total_price, 2); ?> บาท</h4></td>
          </tr>
          </tbody>
          
          <table align="center">      
       <tr> 
         <th>ชื่อ</th> 
      <th><?= $objResult["Cus_Username"];?></th>
      </tr>
      <tr>
      <th>สถานที่ส่ง</th>
      <th>
        <textarea  rows="3" style="width: 200px;" name="order_address" id="order_address"></textarea>
      </th>
      </tr>
         <tr>
         <th>ยอดชำระ</th>
      <th><input  type="hidden" name="Pd_Price50" value="<?php echo number_format($total_price, 2); ?>" > <?php echo number_format($total_price, 2); ?></input></th></tr>  
      
            <td colspan="8"  align="center"><input type="hidden" name="formid" value="<?php echo $_SESSION['formid']; ?>"/>
            
              <a href="cart.php" type="button" class="button btn-small-grey"><input name="1" type="button" class="button btn-small-grey" value ="ย้อนกลับ" /></a>
              <button type="submit" >บันทึกการสั่งซื้อสินค้า</button></td>
          </tr>
        </table>
      </table>
    </form>
    <?php
				}
            ?>

  <?php
                
$formid = isset($_SESSION['formid']) ? $_SESSION['formid'] : "";
if ($formid != $_POST['formid']) {
	echo "E00001!! SESSION ERROR RETRY AGAINT.";
} else {
	unset($_SESSION['formid']);
	if ($_POST) {
		require 'connect.php';
		$Cus_Username = mysql_insert_id();
		
		$Pd_Price = mysql_real_escape_string($_POST['Pd_Price50']);
		$order_address = mysql_real_escape_string($_POST['order_address']);
		$meSql = "INSERT INTO tb_order (Order_Date, Order_Place, Order_Sum, Cus_Username) VALUES (NOW(),'{$order_address}','{$Pd_Price}','{$Cus_Username}') ";
		$meQeury = mysql_query($meSql);
		
		if ($meQeury) {
			$Od_Amount = mysql_real_escape_string($_POST['qty']);
			$Od_Sum = mysql_real_escape_string($_POST['Pd_Price50']);
			
			$Order_id = mysql_insert_id();	
				
				$lineSql = "INSERT INTO tb_order_details (Od_Amount, Od_Sum, Order_id )VALUES ({$Od_Amount}','{$Od_Sum}','{$Order_id}') ";
				mysql_query($lineSql);
			}
			mysql_close();
			unset($_SESSION['cart']);
			unset($_SESSION['qty']);
			echo "การสั่งซื้อเสร็จสมบูรณ์";
			
		}else{
			mysql_close();
			header('location:user_page.php?a=orderfail');
		}
	}


?>