How to use PostgreSQL for data storage in Workerman

How to use PostgreSQL for data storage in Workerman

Introduction:
With the development of web applications, the demand for data storage and management is increasing. High, and PostgreSQL, as a powerful and reliable open source relational database, is favored by developers. This article will introduce how to use PostgreSQL for data storage in Workerman and provide some specific code examples.

1. Install and configure PostgreSQL
First, we need to install and configure PostgreSQL on the server. Here are some simple steps:

1. Install PostgreSQL on the server.
2. Create a database and corresponding tables to store our data.
3. Create a user and assign it the appropriate permissions.

2. Install and configure Workerman
Next, we need to install and configure Workerman. Here are some simple steps:

1. Install Workerman using Composer:

   composer require workerman/workerman

2. Create a worker.php file and add the following code:

   <?php
   require_once __DIR__ . '/vendor/autoload.php';
   use WorkermanWorker;
   
   // 创建一个Worker监听指定端口
   $worker = new Worker('tcp://0.0.0.0:2345');
   
   // 当有客户端连接时触发的回调函数
   $worker->onConnect = function($connection) {
     echo "New connection
   ";
   };
   
   // 当收到客户端消息时触发的回调函数
   $worker->onMessage = function($connection, $data) {
     echo "Received message: $data
   ";
     // 在这里可以将数据存储到PostgreSQL中
     storeData($data);
   };
   
   // 启动worker
   Worker::runAll();
   
   function storeData($data) {
     // 连接到PostgreSQL数据库
     $conn = pg_connect("host=localhost dbname=mydatabase user=myuser password=mypassword");
     if (!$conn) {
        echo "Unable to connect to PostgreSQL
   ";
        exit;
     }
     
     // 执行SQL查询
     $result = pg_query($conn, "INSERT INTO mytable (data) VALUES ('$data')");
     if (!$result) {
        echo pg_last_error($conn);
        exit;
     }
     
     // 关闭连接
     pg_close($conn);
   }

3. Test the integration of Workerman and PostgreSQL
Now, we can use the following command to start the Worker process and test it:

php worker.php start

1. Client connects to Workerman:

   telnet localhost 2345

2. Sends a message to Workerman:

   Testing Workerman and PostgreSQL integration

3. Views stored data in the database:

   SELECT * FROM mytable;

If everything is fine, you should be able to see the message you just sent.

Summary:
This article details how to use PostgreSQL for data storage in Workerman. By configuring and installing PostgreSQL, and writing the corresponding Workerman code, we can integrate with the database and be able to store and retrieve data. This provides us with powerful tools for developing high-performance web applications. Hope this article helps you!

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