数据修改成功后，页面显示的还是原来的数据
数据修改成功后，页面显示的还是原来的数据
<?PHP
include_once ("conn.php");
$value=$_GET['value'];
$sql_itemcode="SELECT * FROM `product` WHERE `item_code` = '$value'";
$querya = mysql_query($sql_itemcode);
$rs= mysql_fetch_array($querya);
?>
<div class="fanbox">
<h3>产品详情</h3>
<form id="mod_form" action="product_change.php?action=mod&item_code=<?PHP echo $rs['item_code'];?>" method="post">
<table width="550" cellpadding="0" cellspacing="0" class="post_table">
<!--
<tr>
<td width="174" align="right">ID：</td>
<td width="374">
<input name="item_code" type="text" class="input2" value="<?PHP echo $rs['id']; ?>" maxlength="30" disabled />
</td>
</tr>
-->
<tr>
<td width="174" align="right">Item_Code：</td>
<td width="374">
<input name="item_code" type="text" class="input2" value="<?PHP echo $rs['item_code']; ?>" maxlength="30" disabled/>
</td>
</tr>
<tr>
<td height="28" align="right">产品名称：</td>
<td><?PHP echo $rs['description']; ?></td>
</tr>
<tr>
<td align="right">HKS_物流成本(RMB)：</td>
<td> <input type="text" class="input2" name="hks_freight" maxlength="30" value="<?PHP echo $rs['hks_freight']; ?>"/></td>
</tr>
<tr>
<td align="right">JPS_物流成本(RMB)：</td>
<td>
<input type="text" class="input2" name="jps_freight" maxlength="30" value="<?PHP echo $rs['jps_freight']; ?>" /></td>
</tr>
<tr>
<td align="right">FBA_物流成本(RMB)：</td>
<td>
<input type="text" class="input2" name="fba_freight" maxlength="30" value="<?PHP echo $rs['fba_freight']; ?>"/></td>
</tr>
<tr>
<td align="right">运营成本(RMB)：</td>
<td>
<input type="text" class="input2" name="operating_costs" maxlength="30" value="<?PHP echo $rs['operating_costs']; ?>"/></td>
</tr>
<tr>
<td height="20" align="right">重量(g)：</td>
<td>
<input type="text" class="input2" name="weight" maxlength="30" value="<?PHP echo $rs['weight'];?>"/></td>
</tr>
<tr>
<td height="26" align="right"><p>信封大小：</p>
</td>
<td><input type="text" class="input2" name="envelope_size" maxlength="30" value="<?PHP echo $rs['envelope_size'];?>"/></td>
</tr>
<tr>
<td height="31" align="right"><input name="submit" type="submit" class="btn" value="修改"/></td>
<td> </td>
</tr>
</table>
</form>
</div>
<script type="text/javascript" src="js/jquery.form.js"></script>
<?php header("Pragma: no-cache"); ?>