How to use PHP Developer City to implement the order return application process function

How to use PHP Developer City to implement the order return application process function

In the e-commerce industry, providing return services to customers is a very important part. In order to improve user experience and increase customer stickiness, the mall platform needs to develop an order return application process function. This article will use PHP as the development language to introduce how to use the PHP Developer City to implement the order return application process function.

1. Design database
   First, we need to design a database to store order information and return application information. The database should contain an order table, a product table, and a return request form. The order table should contain fields such as order number, customer information, product information, and order status; the product table should contain fields such as product number, product name, product price, etc.; the return application form should contain return application number, order number, reason for return, and return status. fields.

2. Create PHP connection database
   In PHP, we need to use methods such as MySQLi or PDO to connect to the database. First, we need to create a database connection in the PHP file. You can use the following PHP code to connect to the database:

   <?php
   $servername = "localhost";
   $username = "username";
   $password = "password";
   $dbname = "database";
   
   $conn = new mysqli($servername, $username, $password, $dbname);
   if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
   }
   ?>

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   Among them, $servername is the database server name, $username is the database username, $password is the database password, and $dbname is the database name.

3. Create an order return application page
   Next, we need to create an order return application page to allow users to fill in return information. You can use HTML and CSS to design the page layout, and use PHP code to process the return application information submitted by the user. After the user enters the reason for return on the page and clicks the submit button, the PHP code will insert the return application information into the return application form. For example, we can process the user's return request through the following PHP code:

   <?php
   if ($_SERVER["REQUEST_METHOD"] == "POST") {
    $order_id = $_POST['order_id'];
    $reason = $_POST['reason'];
   
    // 将退货申请信息插入到退货申请表中
    $sql = "INSERT INTO return_requests (order_id, reason) VALUES ('$order_id', '$reason')";
    
    if ($conn->query($sql) === TRUE) {
        echo "退货申请已提交";
    } else {
        echo "Error: " . $sql . "<br>" . $conn->error;
    }
   }
   ?>

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   In the above code, $_POST['order_id'] and $_POST['reason'] are respectively the user's status on the page Enter the order number and return reason.

4. Display the order return application list
   In order to facilitate the mall administrator to view the order return application, we need to create a page to display the order return application list. You can query the return application form and display the results in a table. You can use the following code to query the return request list:

   <?php
   $sql = "SELECT * FROM return_requests";
   $result = $conn->query($sql);
   
   if ($result->num_rows > 0) {
    echo "<table><tr><th>退货申请编号</th><th>订单号</th><th>退货原因</th><th>退货状态</th></tr>";
    
    while($row = $result->fetch_assoc()) {
        echo "<tr><td>".$row["request_id"]."</td><td>".$row["order_id"]."</td><td>".$row["reason"]."</td><td>".$row["status"]."</td></tr>";
    }
    echo "</table>";
   } else {
    echo "没有找到退货申请";
   }
   ?>

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   In the above code, $row['request_id'], $row['order_id'], $row['reason'] and $row[ 'status'] are the return application number, order number, return reason and return status in the query results.

5. Update order return status
   After viewing the return application list, the mall administrator needs to review each return application. Administrators can update the return status to indicate the progress of the return request. For example, you can add a return status field to the return application form, and the administrator can update it to a different status when reviewing the return application, such as pending, approved, or failed. You can use the following code to update the return status:

   <?php
   $request_id = $_GET['request_id'];
   $status = $_GET['status'];
   
   // 更新退货状态
   $sql = "UPDATE return_requests SET status='$status' WHERE request_id='$request_id'";
   
   if ($conn->query($sql) === TRUE) {
    echo "退货状态已更新";
   } else {
    echo "Error: " . $sql . "<br>" . $conn->error;
   }
   ?>

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   In the above code, $_GET['request_id'] and $_GET['status'] are the return request number and the return request number selected by the administrator on the page respectively. New return status.

Through the above steps, we can use the PHP Developer City to implement the order return application process function. Through database storage and PHP code processing, the mall platform can easily manage and process order return applications, improve user experience and increase customer stickiness. At the same time, we can also expand and optimize the order return application process according to actual needs.

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