我如下编辑了我的代码,但问题是每次我单击编辑链接时,都会显示所有产品,而不是仅显示我单击编辑链接旁边的产品。
注意:很抱歉发布与我的另一个有关的另一个问题。我无法添加更多评论。
<?php
include_once("db_connect.php");
if(isset($_POST['update']))
{
$prod_id = $_POST['prod_id'];
$prod_name=$_POST['prod_name'];
$prod_brand=$_POST['prod_brand'];
$prod_price=$_POST['prod_price'];
// checking empty field
if(empty($prod_price))
{
//if name field is empty
if(empty($prod_price))
{
echo "<font color='red'>Price field is empty.</font><br/>";
}
}
else
{
//updating the table
//$result=mysql_query("UPDATE tblretprod SET prod_price='$prod_price' WHERE prod_id=$prod_id");
$result=mysql_query("UPDATE tblretprod SET prod_price='".$prod_price."' WHERE prod_id='".$prod_id."';");
//redirectig to the display page. In our case, it is index.php
header("Location: update.php");
}
}
?>
<?php
$prod_id = $_GET['prod_id'];
$result=mysql_query("SELECT a.prod_name, a.prod_brand, b.prod_price FROM tblproduct a, tblretprod b where a.prod_id = b.prod_id") or die(mysql_error());
?>
<html>
<title>Edit Product</title>
<body>
<a href="#">Home</a>
<br/><br/>
<form name="edit" method="post" action="updprod.php">
<table border="0">
<?php
while($res=mysql_fetch_array($result))
{
$prod_name = $res['prod_name'];
$prod_brand = $res['prod_brand'];
$prod_price = $res['prod_price'];
?>
<tr>
<td>Product Name</td>
<td>
<input type="text" disabled="disabled" name="prod_name" value = "<?php echo $prod_name;?>"> </td>
</tr>
<tr>
<td>Brand</td>
<td>
<input type="text" disabled="disabled" name="prod_brand" value = "<?php echo $prod_brand;?>"> </td>
</tr>
<tr>
<td>Product Price</td>
<td>
<input type="text" name="prod_price" value = "<?php echo $prod_price;?>">
<input type="hidden" name="prod_id" value = "<?php echo $_GET['prod_id'];?>">
</td>
</tr>
<?php } ?>
<tr>
<td><input type="submit" name="update" value="Update"></td>
</tr>
</table>
</form>
</body>
</html>