$worker->count=1，on之类的代码也是在子进程中运行吧？

use Workerman\Worker;
use Workerman\Connection\TcpConnection;
require_once __DIR__ . '/vendor/autoload.php';

$worker = new Worker('websocket://0.0.0.0:8484');
$worker->count = 1;// 这里只有1个进程
$worker->onWorkerStart = function($worker){};
$worker->onConnect = function(TcpConnection $connection){};
$worker->onMessage = function(TcpConnection $connection, $data){};
$worker->onClose = function(TcpConnection $connection){};
$worker->onError = function(TcpConnection $connection, $code, $msg){};
// 运行worker
Worker::runAll();