workerman怎么运行

<?php
use WorkermanWorker;
 
//Autoloader.php路径
require_once "./Autoloader.php";
 
$global_uid = 0;
 
// 当客户端连上来时分配uid，并保存连接，并通知所有客户端
function handle_connection($connection)
{
 global $text_worker, $global_uid;
 // 为这个连接分配一个uid
 $connection->uid = ++$global_uid;
}
 
// 当客户端发送消息过来时，转发给所有人
function handle_message($connection, $data)
{
 global $text_worker;
 foreach($text_worker->connections as $conn)
 {
 $conn->send("user[{$connection->uid}] said: $data");
 }
}
 
// 当客户端断开时，广播给所有客户端
function handle_close($connection)
{
 global $text_worker;
 foreach($text_worker->connections as $conn)
 {
 $conn->send("user[{$connection->uid}] logout");
 }
}
 
// 创建一个文本协议的Worker监听2000接口 用0.0.0.0方便链接内网外网
$text_worker = new Worker("websocket://0.0.0.0:2000"); 
 
// 只启动1个进程，这样方便客户端之间传输数据
$text_worker->count = 1;
 
$text_worker->onConnect = 'handle_connection';
$text_worker->onMessage = 'handle_message';
$text_worker->onClose = 'handle_close';
 
Worker::runAll();