How to use PHP Developer City to implement user browsing history function

How to use PHP Developer City to realize the user browsing record function

With the rapid development of e-commerce, more and more companies are beginning to turn to the e-commerce model. In a shopping mall website, the user browsing history function is a very important part. It can provide users with personalized recommendation services and also provide merchants with user behavior data to optimize products and services.

This article will introduce how to use the PHP Developer City to implement the user browsing record function.

1. Database design
   In the database, we need to design a table to store the user's browsing records. A common design method is to create a table named "browse_history", containing the following fields: user ID, product ID, browsing time.
2. Login status maintenance
   In order to record the user's browsing history, you first need to confirm whether the user is logged in. By verifying the user's login status, the browsing history can be bound to the user account, thereby realizing personalized browsing recommendation functions.

In PHP, you can use session or cookie to maintain the user's login status. When the user successfully logs in, the user ID is stored in the session or cookie for subsequent data association.

3. Record user browsing records
   When users browse products, the browsing records need to be stored in the database. You can add a parameter to the link on the product details page or product list page to represent the product ID. When the user clicks on a product, the product ID is obtained from the link, and the product ID is inserted into the "browse_history" table together with the user ID and the current time.

In PHP, you can use SQL statements to perform insert operations. The specific code is as follows:

// 获取用户ID
$userID = $_SESSION['userID'];

// 获取商品ID
$productID = $_GET['productID'];

// 获取当前时间
$currentTime = date('Y-m-d H:i:s');

// 插入记录到数据库
$query = "INSERT INTO browse_history (user_id, product_id, browse_time) VALUES ('$userID', '$productID', '$currentTime')";
mysqli_query($conn, $query);

4. Display user browsing history
   In the personal center or browsing history page of the mall website, the user's browsing history can be displayed. You can query the database to obtain the user's browsing records based on the user ID, and display the records on the web page.

In PHP, you can use SQL statements to perform query operations and use loop statements to traverse the query results. The specific code is as follows:

// 获取用户ID
$userID = $_SESSION['userID'];

// 查询用户的浏览记录
$query = "SELECT product_id, browse_time FROM browse_history WHERE user_id = '$userID' ORDER BY browse_time DESC";
$result = mysqli_query($conn, $query);

// 遍历查询结果
while ($row = mysqli_fetch_assoc($result)) {
    $productID = $row['product_id'];
    $browseTime = $row['browse_time'];

    // 根据商品ID查询商品信息并显示
    // ...
}

5. Other function extensions
   In addition to the basic browsing history function, it can also implement more personalized recommendation services based on the user's browsing history. For example, based on the products the user has recently browsed, recommend products of similar types or the same brand to the user.

By using the user browsing history function of the PHP Developer City, you can improve the user's shopping experience, and at the same time, you can provide behavioral data for merchants to help them optimize their products and services. I hope this article can be helpful to developers!

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