How to use php to delete and publish Weibo

With the development of social media, Weibo has become an indispensable part of people's lives. Platforms like Weibo not only provide a convenient channel for disseminating information, but also provide users with a convenient way to communicate. Since there is so much information on Weibo, people need to be able to delete and post their own Weibo easily for necessary reasons. This article will introduce how to use PHP to implement the delete and publish function of Weibo.

First of all, we need to know some background knowledge about Weibo. The Weibo platform is actually built from web applications, therefore, we need to design a data model for this. A data model is a graphical representation used to simulate the structure of the data we will process on the Weibo platform.

For Weibo, in addition to the text representing the published message, other information also needs to be stored, such as: timestamp, publisher, collector, forwarder, etc. Below we will use MySQL as an example to build the data model of Weibo.

Create Weibo’s MySQL table

First, in order to store our messages, we need to design a MySQL table to store all information related to Weibo.

CREATE TABLE weibo_posts (

id INT PRIMARY KEY AUTO_INCREMENT,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
user_id INT,
message TEXT

);

The above SQL statement is to create the MySQL table of Weibo.

Delete Weibo

To complete the deletion function, we need to provide some UI elements, such as links, buttons or list items. When a user clicks a link or button, the tweet is deleted. All we need to do is capture the event and then delete the Weibo.

Code example:

/**
* 检查请求是否POST类型
*/
if($_SERVER["REQUEST_METHOD"] === "POST") {
    // 执行删除操作
    $id = $_POST['id'];
    // 删除微博
    delete_post($id);
    // 重定向到主页
    header("Location: /index.php");
    exit();
}
/**
* 删除微博
*/
function delete_post($id) {
    // 连接数据库
    $conn = connect_to_database('localhost', 'root', '', 'weibo_db');
    // 准备删除语句
    $stmt = $conn->prepare('DELETE FROM weibo_posts WHERE id = ?');
    // 绑定微博ID
    $stmt->bind_param('i', $id);
    // 执行删除操作
    $stmt->execute();
}

?>
Publish Weibo
Now we can delete the Weibo After blogging, the next step is to allow users to post Weibo. This process is similar to the process of deleting Weibo. When the user submits the form, we save the data to the database. 
Code example:
/**
* 检查请求是否POST类型
*/
if($_SERVER["REQUEST_METHOD"] === "POST") {
    $message = $_POST['message'];
    // 如果微博消息不为空，执行保存操作
    if(!empty($message)) {
        // 发布微博
        create_post($_SESSION['user_id'], $message);
        // 重定向到主页
        header("Location: /index.php");
        exit();
    }
}
/**
* 发布微博
*/
function create_post($user_id, $message) {
    // 连接数据库
    $conn = connect_to_database('localhost', 'root', '', 'weibo_db');
    // 准备插入语句
    $stmt = $conn->prepare('INSERT INTO weibo_posts (user_id, message) VALUES (?, ?)');
    // 绑定发布者和微博消息
    $stmt->bind_param('is', $user_id, $message);
    // 执行插入操作
    $stmt->execute();
}

?>
Summary
At this point, we have introduced how to Use PHP to implement the delete and publish function of Weibo. Although these codes are for demonstration purposes only, they are the building blocks for building web applications. Hopefully this article will help you get started on your journey of building your own PHP applications. 
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