Workerman development experience sharing: building a stable and reliable instant message push system

Workerman Development Experience Sharing: Building a Stable and Reliable Instant Message Push System

With the rapid development of the Internet, real-time message push has become an indispensable function for many applications and websites. In this article, I will share some experiences and tips on using Workerman to develop a stable and reliable instant messaging system. At the same time, I will provide some code examples to help readers better understand and apply these techniques.

Workerman is a high-performance, scalable network communication engine developed based on PHP. It uses asynchronous IO technology and has the characteristics of low latency and high concurrency. This makes it ideal for building high-performance instant messaging systems.

Before starting to use Workerman, we first need to install the Workerman expansion pack. We can use Composer to install, just run the following command in the project directory:

composer require workerman/workerman

After the installation is complete, we can start writing code to build our instant message push system.

First, we need to create a server-side script to receive and process client connections and messages. The following is a simple example to create a Server.php file:

<?php
require_once __DIR__.'/vendor/autoload.php';

use WorkermanWorker;

$worker = new Worker('websocket://0.0.0.0:8000');

$worker->count = 4;

$worker->onConnect = function($connection) {
    echo "New connection established
";
};

$worker->onMessage = function($connection, $message) {
    echo "Message received from client: $message
";
    $connection->send("Message received: $message");
};

Worker::runAll();

The above code creates a WebSocket service and sets the listening address to 0.0.0.0:8000, which means listening to the 8000 port of the local machine.

When the client connection is successful, the onConnect event will be triggered. We can perform some initialization operations in this event. When a client message is received, the onMessage event is triggered. We can process the message in this event and return a response.

Next, we can create a client script to connect to the server and send messages. The following is a simple example to create a Client.php file:

<?php
require_once __DIR__.'/vendor/autoload.php';

use WorkermanWorker;
use WorkermanConnectionAsyncTcpConnection;

$worker = new Worker();

$worker->onWorkerStart = function() {
    $client = new AsyncTcpConnection('ws://127.0.0.1:8000');
    
    $client->onConnect = function($connection) {
        echo "Connected to server
";
        $connection->send("Hello, server!");
    };
    
    $client->onMessage = function($connection, $message) {
        echo "Message received from server: $message
";
    };
    
    $client->onClose = function($connection) {
        echo "Connection closed
";
    };
    
    $client->connect();
};

Worker::runAll();

The above code creates a client Worker and creates an AsyncTcpConnection instance in the onWorkerStart event for connecting to the server. When the connection is successful, the onConnect event will be triggered, and we can send a message to the server in this event. When a server message is received, the onMessage event is triggered, and we can process the message in this event. When the connection is closed, the onClose event is triggered.

So far, we have completed the development of a simple instant message push system. When a client connects to the server and sends a message, the server receives the message and returns a response.

Of course, the above examples are just the basic usage of Workerman, and actual applications may involve more functions and processing logic. For example, we can use the group chat function provided by Workerman to implement message broadcast and real-time chat between multiple clients.

To summarize, using Workerman to develop an instant message push system can help us build a stable and reliable real-time communication function. Moreover, Workerman provides a wealth of functions and event callbacks to facilitate our customized development and expansion.

I hope this article sharing will be helpful to readers and they can use Workerman to build a high-performance instant message push system in actual projects.

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