server.php

<?php

// $ composer require react/http react/socket # install example using Composer
// $ php example.php # run example on command line, requires no additional web server

require __DIR__ . '/vendor/autoload.php';

$http = new React\Http\HttpServer(function (Psr\Http\Message\ServerRequestInterface $request) {
    return React\Http\Message\Response::plaintext(
        "Hello World!\n"
    );
});

$socket = new React\Socket\SocketServer('127.0.0.1:8080');
$http->listen($socket);

echo "Server running at http://127.0.0.1:8080" . PHP_EOL;

Loop::addSignal(SIGINT, $func = function ($signal) use (&$func, $http) {
    echo 'Signal: ', (string)$signal, PHP_EOL;
    Loop::removeSignal(SIGINT, $func);
    $http->close();
});
Loop::addSignal(SIGTERM, $func = function ($signal) use (&$func, $http) {
    echo 'Signal: ', (string)$signal, PHP_EOL;
    Loop::removeSignal(SIGTERM, $func);
    $http->close();
});