Building a PHP mall: creating a user feedback and evaluation management system

With the continuous development of e-commerce, user evaluation and feedback of products are becoming more and more important. In order to provide a better user experience and increase product credibility, merchants need an effective user feedback and evaluation management system. In this article, we will use PHP to build a simple mall system and add user feedback and evaluation management functions.

1. Technical preparation
Before starting to build, we need to ensure that the system has the following technical preparations:

1. PHP 5.6 (this article uses PHP 7 as an example)
2. MySQL database
3. Apache server (or other applicable web server)
4. Front-end technologies, such as HTML, CSS and JavaScript

2. Database design
First, we need to design the database schema to store user feedback and evaluation data. Create a table named "feedback", containing the following fields:

feedback_id (primary key) - Feedback ID
user_id - User ID
product_id - Product ID
rating - Rating (1- 5)
comment - Comment
created_at - Creation time
updated_at - Update time

In MySQL, you can use the following SQL statement to create a feedback table:

CREATE TABLE feedback (

feedback_id INT AUTO_INCREMENT PRIMARY KEY, user_id INT, product_id INT, rating INT, comment TEXT, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP

);

3. User feedback page
Next, we will create a user feedback page where users can enter ratings and comments. After submitting the form, we will save the data to the database.

    
  
用户反馈
 
 评分：  1 2 3 4 5  
 评论：  
  
  

4. Save feedback data
Create a file named "submit_feedback.php" to save user feedback to the database.

connect_error) { die("连接失败: " . $conn->connect_error); } // 构建SQL查询语句并将数据插入到数据库中 $sql = "INSERT INTO feedback (user_id, product_id, rating, comment) VALUES (1, 1, '$rating', '$comment')"; if ($conn->query($sql) === TRUE) { echo "反馈保存成功"; } else { echo "Error: " . $sql . "
" . $conn->error; } $conn->close(); ?>

5. Display user feedback
Finally, we will create a page to display user evaluations and feedback. On this page we will retrieve and display feedback data from the database.

connect_error) { die("连接失败: " . $conn->connect_error); } // 查询所有的反馈数据 $sql = "SELECT * FROM feedback"; $result = $conn->query($sql); if ($result->num_rows > 0) { // 输出数据 while($row = $result->fetch_assoc()) { echo "用户ID: " . $row["user_id"]. " - 评分: " . $row["rating"]. " - 评论: " . $row["comment"]. "
"; } } else { echo "暂无反馈"; } $conn->close(); ?>

So far, we have completed a simple user feedback and evaluation management system. Users can enter ratings and comments on the feedback page, and we can also retrieve and display all user feedback from the database. Based on actual needs, we can add more functions to the system, such as user login and authentication, responding to user feedback, etc.

By building an effective user feedback and evaluation management system, we can better understand user needs and feedback, thereby improving products and increasing user satisfaction. I hope this article will be helpful to developers who build PHP malls and implement user feedback and evaluation management systems.

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