我必须在confirmationpage.html上打印从checkoutpage.html收集的用户的名字，姓氏和电子邮件。
我使用过邮政方法，但我不知道它是否正确完成。
<!DOCTYPE html>
<html>
<head>
<title>Checkout page</title>
</head>
<body>
<h1>Checkout page</h1>
<form action="Confirmationpage.html" method="POST">
<input type="text" name="fName" placeholder="First Name"><br>
<input type="text" name="lName" placeholder="Last Name"><br>
<input type="email" name="email" placeholder="Email"><br>
<input type="number" name="phoneNumber" placeholder="Phone Number"><br>
<input type="submit" value="Confirm">
</form>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<title>Confirmation page</title>
</head>
<body>
<h1>Confirmation page</h1>
<h2>Order Confirmed!</h2>
<?php
// define variables and set to empty values
$fName = $lName = $email = $phoneNumber = "";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$fName = $_POST["fName"];
$lName = $_POST["lName"];
$email = $_POST["email"];
$phoneNumber = $_POST["phoneNumber"];
echo $fName . " " . $lName;
echo $email;
}
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
</body>
</html>
我希望我的名字，姓氏和电子邮件会打印在确认页面上，并在结帐页面上收集信息。