协程是一种比线程更轻量级的用户级并发机制，能够在进程中实现多任务调度。它通过手动控制挂起和恢复来实现协程间的切换，避免了进程上下文切换的开销

一、准备

PHP >= 8.1
Workerman >= 5.1.0 (composer require workerman/workerman ~v5.1)
webman-framework >= 2.1 (composer require workerman/webman-framework ~v2.1)
安装了swoole或者swow扩展，或者安装了composer require revolt/event-loop (Fiber)
协程默认是关闭的，需要单独设置eventLoop开启

二、配置

config\process.php 增加

'my-webman' => ['handler' => Http::class,'listen' => 'http://0.0.0.0:8686','count' => 1,'user' => '','group' => '','reusePort' => false,// 开启协程需要设置为 Workerman\Events\Swoole::class 或者 Workerman\Events\Swow::class 或者 Workerman\Events\Fiber::class'eventLoop' => Workerman\Events\Swoole::class,'context' => [],'constructor' => ['requestClass' => Request::class,'logger' => Log::channel('default'),'appPath' => app_path(),'publicPath' => public_path()]],

三、启动

php start.php start

四、使用

1. app\controller\IndexController.php

class IndexController
{public function index(Request $request){Coroutine::create(function(){Timer::sleep(10);echo "hello coroutine\n";});return response('hello webman');}

结果：

http://47.112.111.11:8686/ 协程方式访问接口：马上输出hello webman,10秒后在进程守护器日志里输出hello coroutine

http://47.112.111.11:8787/ 非协程方式访问：直接卡10秒，然后显示hello webman，进程守护器日志里输出hello coroutine

其他官方参考
https://www.workerman.net/doc/webman/coroutine/coroutine.html