<?php
    $http = new Swoole\Http\Server('0.0.0.0', 9501);

    $http->on('Request', function ($request, $response) {
        $response->header('Content-Type', 'text/html; charset=utf-8');
        $response->end('<h1>Hello Swoole. #' . rand(1000, 9999) . '</h1>');
    });

    $http->start();