php - 设置操作后，html 发布表单不会发送数据

Question

当 action="" 没有设置时，表单将发送输入的数据并将其存储在数据库中。

但是，当我使用 action="order.php" 重定向表单后，它不会将数据发送到数据库。

我已经删除了数据库信息我没有遗漏

这是我的 PHP 代码:

<?php 
session_start();

?>
<?php 
include('inc/header.php'); 
?>

<?php 
include('inc/nav.php'); 
?>


    <div>

    <?php

        if (!empty($_POST))  {

             $db = new PDO('mysql:host=localhost;dbname=;charset=utf8', '', '');

             $stmt = $db->prepare("INSERT INTO user (first_name, last_name, email,                 address_line_1, address_line_2, city, postcode)
     values (?,?,?,?,?,?,?)");


             $first_name  = $_POST["firstname"];
             $last_name = $_POST["lastname"];
             $email = $_POST["email"];
             $address_line_1 = $_POST["address1"];
             $address_line_2 = $_POST["address2"];
             $city = $_POST["city"];
             $postcode = $_POST["postcode"];

             $stmt->bindParam(1, $first_name);
             $stmt->bindParam(2, $last_name);
             $stmt->bindParam(3, $email);
             $stmt->bindParam(4, $address_line_1);  
             $stmt->bindParam(5, $address_line_2);
             $stmt->bindParam(6, $city);    
             $stmt->bindParam(7, $postcode);        

             $success = $stmt->execute();  

             $orderplaced = 'order.php';

             if ($success) { 

             }
             else { 

                 print "not successful"; 
             } 
     }
?>

和 HTML:

    <form action="order.php" method="post">
        <fieldset>
              <legend> <h2>Checkout</h2></legend>
                  <ul class="checkout">

                      <li><label>First Name: <input type="text" name="firstname" placeholder="Enter your first name" required/></label></li>

                      <li><label>Last Name: <input type="text" name="lastname" placeholder="Enter your last name" required/></label></li>

                      <li><label>Email: <input type="text" name="email" placeholder="Enter your email address" required/></label></li>

                      <li><label>Address Line 1: <input type="text" name="address1" placeholder="Enter your address" required/></label></li>

                      <li><label>Address Line 2: <input type="text" name="address2" placeholder="Enter your address" required/></label></li>

                      <li><label>City: <input type="text" name="city" placeholder="Enter your city" required/></label></li>

                      <li><label>Postcode: <input type="text" name="postcode" maxlength="10" placeholder="Enter your postcode" required/></label></li>

                      <li><input type="submit" name="submit"/> </li>
            </ul>
        </fieldset>
    </form>

    </div>

<?php 
include('inc/footer.php'); 
?>

Answer 1

你有两个选择:
1)去掉表单的action，让表单自己提交，这样提交的数据会保存在DB中，然后重定向到order.php

<form action="" method="post">

然后就成功了

if ($success) { 
   header('location: /order.php');
}

2) 将所有提交的 php 部分复制到 order.php 并让表单保持原样