Swoole and Workerman's real-time processing capabilities for PHP and MySQL message queues

Swoole and Workerman: Real-time processing capabilities of PHP and MySQL message queues

Introduction:
With the continuous development of Internet technology, real-time message processing has become a Important requirements for web applications. As a language widely used in Web development, PHP has encountered some challenges in achieving real-time processing capabilities. However, by using Swoole and Workerman, two high-performance PHP extensions, we can easily realize the real-time processing capabilities of PHP and MySQL message queues. This article will introduce the use of Swoole and Workerman in detail and give specific code examples.

1. Introduction to Swoole
Swoole is an extension that provides high-performance network communication capabilities for PHP developers. It provides a set of non-blocking, asynchronous TCP, UDP, HTTP, WebSocket servers and clients that can be used to implement high-performance network servers and real-time message processing systems. In terms of realizing real-time processing capabilities of PHP and MySQL message queues, Swoole can provide relatively high concurrent processing capabilities.

The following is an example code for using Swoole to implement PHP and MySQL message queue:

<?php
class MySQLQueue {
    private $server;
    private $pool;
    
    public function __construct($server, $pool){
        $this->server = $server;
        $this->pool = $pool;
    }
    
    public function pop(){
        $result = $this->server->taskwait(function ($mysql_connection){
            return $mysql_connection->query("SELECT * FROM queue WHERE status = 0 LIMIT 1");
        }, $this->pool, function ($result, $db){
            $db->query("UPDATE queue SET status = 1 WHERE id = {$result['id']}");
        });
        
        return $result;
    }
}

$serv = new swoole_server("127.0.0.1", 9501, SWOOLE_BASE, SWOOLE_SOCK_TCP);
$pool = new swoole_connpool(SWOOLE_MYSQL);
$pool->server = $serv;
$pool->onRequest = function ($conn){
    $mysql = new SwooleCoroutineMySQL();
    $mysql->connect(['host' => '127.0.0.1', 'port' => 3306, 'user' => 'root', 'password' => 'password', 'database' => 'test']);
    $conn->send((new MySQLQueue($this->server, $this))->pop());
};

$serv->set(array('worker_num' => 4, 'task_worker_num' => 4));
$serv->start();

In the above code, we define a MySQLQueue class, in which the pop() method uses Get the data in the message queue from MySQL and set the status flag to 1 (indicating that it has been processed). In Swoole's server, we use the $server->taskwait() method to perform asynchronous MySQL queries, $this->pool represents the connection pool we created previously.

2. Introduction to Workerman
Workerman is another PHP open source framework that provides high-performance network programming capabilities. It provides a set of easy-to-use, high-performance network communication APIs for building real-time applications. Workerman can be used to build various types of applications such as Web servers, WebSockets servers, and TCP/UDP servers.

The following is a sample code for using Workerman to implement PHP and MySQL message queues:

<?php
require_once '/path/to/vendor/autoload.php';
use WorkermanWorker;
use WorkermanLibTimer;

$worker = new Worker();
$worker->count = 4;
$worker->onWorkerStart = function($worker) {
    $mysql = new WorkermanMySQLConnection('127.0.0.1', '3306', 'root', 'password', 'test');
    Timer::add(1, function() use ($worker, $mysql) {
        $result = $mysql->select('*')->from('queue')->where('status=0')->limit(1)->query();
        if (!$result) {
            return;
        }
        $mysql->update('queue')->set('status=1')->where('id=?', $result[0]['id'])->query();
        foreach ($worker->connections as $connection) {
            $connection->send(json_encode($result[0]));
        }
    });
};

$worker->onConnect = function($connection) {
    $connection->send('Connected');
};

$worker->onMessage = function($connection, $data) {
    $connection->send('Received: ' . $data);
};
Worker::runAll();

In the above code, we use the WorkermanMySQL extension to connect to the MySQL database. The $worker->onWorkerStart method will periodically query the message queue in the database and send the results to all client connections when the query results are not empty.

Conclusion:
This article introduces the two high-performance PHP extensions Swoole and Workerman in realizing the real-time processing capabilities of PHP and MySQL message queues, and gives corresponding code examples. . By using Swoole and Workerman, we can improve PHP's performance in real-time message processing and meet the needs of Web applications for real-time processing capabilities. I hope readers can understand the basic usage of Swoole and Workerman through this article, and apply them to their own projects in actual development.

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