reactphp-socket.php

<?php

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

$loop = React\EventLoop\Factory::create();

$server = new React\Socket\Server("127.0.0.1:1337", $loop);
$server->on("connection", function ($client) use ($loop) {
    print "New client..." . PHP_EOL;

    $client->write("Hello World." . PHP_EOL);

    $process = new React\ChildProcess\Process("sleep 10");
    $process->start($loop);

    $loop->addTimer(1, [$client, "close"]);
});

$loop->run();