How to implement the timer function in the Workerman document

How to implement the timer function in the Workerman document

Workerman is a powerful PHP asynchronous network communication framework that provides a wealth of functions, including timing device function. Use timers to execute code within specified time intervals, which is very suitable for application scenarios such as scheduled tasks and polling. Next, I will introduce in detail how to implement the timer function in Workerman and provide specific code examples.

Step One: Install Workerman

First, we need to install the Workerman framework. It can be installed using composer through the following command:

composer require workerman/workerman

Step 2: Create a timer class

In Workerman, we can create a Timer class to implement timer function. You can create a new file Timer.php with the following code:

<?php
use WorkermanWorker;

class Timer
{
    /**
     * 创建一个定时器
     *
     * @param integer $interval 定时器间隔时间，单位为秒
     * @param callable $callback 定时器回调函数
     * @param array $args 定时器回调函数的参数
     */
    public static function add($interval, $callback, $args = [])
    {
        $worker = new Worker();
        $worker->onWorkerStart = function() use ($interval, $callback, $args) {
            Timer::tick($interval, $callback, $args);
        };

        Worker::runAll();
    }

    /**
     * 循环定时器
     *
     * @param integer $interval 定时器间隔时间，单位为秒
     * @param callable $callback 定时器回调函数
     * @param array $args 定时器回调函数的参数
     */
    public static function tick($interval, $callback, $args = [])
    {
        Worker::addTimer($interval, $callback, $args);
    }
}

Step 3: Use the timer

Next, we can use the timer in the code. The following is a simple example that outputs "Hello World!" every 5 seconds:

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

Timer::add(5, function() {
    echo "Hello World！
";
});

In the above code, we first introduced Workerman and used the timer class Timer. Then call the Timer::add method to create a timer, where parameter 5 means that it will be executed every 5 seconds, and "Hello World!" will be output in the callback function. Finally, start the timer by running the php command.

So far, we have successfully implemented the timer function in Workerman. You can set different time intervals and callback functions according to your own needs to perform any related operations regularly.

Summary

Workerman is a very powerful and flexible PHP asynchronous network communication framework. The timer function provides us with more solutions for timing code execution. By creating a timer class and using the corresponding methods, we can easily implement application scenarios such as scheduled tasks and polling. In actual use, you can set the timer according to specific needs to achieve more rich functions. I hope this article helps you understand Workerman's timer function.

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