我有一个名为simple_stall的数据库，该数据库的表order_detail有4列ID Name Ordered_Item Quantity ...目前在用户之后提交订单，他们将被重定向到名为order_detail.php的页面...此页面将在表中显示标题为ID Name Ordered_Item {{1 }}
现在，当用户从表中单击某人的名字时，我想将用户重定向到名为Quantity的新页面，该页面将显示用户订购的商品，但是该页面中没有任何内容。
这是我的代码：
view_more.php
index.php
<div class="container">
<form action="insert_data.php" method="POST">
<div>
<input type="text" name="Name" placeholder="Name">
</div>
<div>
<input type="text" name="Order" placeholder="Order">
</div>
<div>
<input type="text" name="Quantity" placeholder="Quantity">
</div>
<div>
<button type="submit" name="submit">Send Order</button>
</div>
</form>
</div>
insert_data.php if (isset($_POST['submit']))
{
include_once 'dbh.php';
// Escape user inputs for security
$name = mysqli_real_escape_string($connection, $_POST['Name']);
$order = mysqli_real_escape_string($connection, $_POST['Order']);
$quantity = mysqli_real_escape_string($connection, $_POST['Quantity']);
// attempt insert query execution
$sql = "INSERT INTO order_detail (Name, Ordered_Item, Quantity) VALUES ('$name', '$order', '$quantity')";
if(mysqli_query($connection, $sql))
header("Location: ./order_detail.php?status=ordered");
else
echo "ERROR: Could not able to execute $sql. " . mysqli_error($connection);
// close connection
mysqli_close($connection);
}
else
{
header("Location: ./index.php?status=failed");
exit();
}
order_detail.php <body>
<table>
<tr>
<th width="30px">No</th>
<th width="30%">Name</th>
<th width="30%">Ordered Item</th>
<th width="50px">Quantity</th>
</tr>
<?php
include_once 'dbh.php';
$query = "SELECT * FROM order_detail"; //You don't need a ; like you do in SQL
$result = mysqli_query($connection, $query);
echo "<table border = 1px>"; // start a table tag in the HTML
while($row = mysqli_fetch_array($result))
{
$name = $row['Name'];
//Creates a loop to loop through results
echo "<tr><td style = 'width:30px;'>" . $row['ID'] . "</td>
<td style = 'width:30%;'>" . "<a href='view_more.php?id=$name'>" . $row['Name'] . "</td>
<td style = 'width:30%;'>" . $row['Ordered_Item'] . "</td>
<td>" . $row['Quantity'] . "</td></tr>"; //$row['index'] the index here is a field name
}
echo "</table>"; //Close the table in HTML
mysqli_close($connection); //Make sure to close out the database connection
?>
view_more.php答案 0 :(得分：1)
它不会显示，
因为在view_more.php上您拥有if (isset($_POST['Name']))，这将永远是不正确的，因为您没有在$_POST上使用view_more.php，因此您正在使用<td style = 'width:30%;'>" . "<a href='view_more.php?id=$name'>" . $row['Name'] . "</td>普通链接，请用此代码替换
if (isset($_GET['id']))
{
include_once 'dbh.php';
$name = $_GET['id'];
$query = "SELECT * FROM order_detail WHERE Name = '$name'";
$result = mysqli_query($connection, $query);
echo "<table border = 1px>"; // start a table tag in the HTML
while($row = mysqli_fetch_array($result))
{
//Creates a loop to loop through results
echo "<tr><td style = 'width:30px;'>" . $row['ID'] . "</td>
<td style = 'width:30%;'>" . $row['Name'] . "</td>
<td style = 'width:30%;'>" . $row['Ordered_Item'] . "</td>
<td>" . $row['Quantity'] . "</td></tr>"; //$row['index'] the index here is a field name
}
echo "</table>"; //Close the table in HTML
mysqli_close($connection);
}
您应该会很好，但是，我强烈建议您使用适当的php框架。
答案 1 :(得分：0)
在生成指向HoloLens页面的链接时，您正在注入名为view_more.php的GET参数：
id在<a href='view_more.php?id=$name'>
页上，您正在测试名为view_more.php的POST参数：
name将此问题修复为
if (isset($_POST['Name']))
顺便说一句，您的代码确实非常丑陋。有很多事情做错了：