57-server-error-handling.php

<?php

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

$count = 0;
$http = new React\Http\HttpServer(function (Psr\Http\Message\ServerRequestInterface $request) use (&$count) {
    $count++;

    if ($count % 2 === 0) {
        throw new Exception('Second call');
    }

    return React\Http\Message\Response::plaintext(
        "Hello World!\n"
    );
});

$socket = new React\Socket\SocketServer(isset($argv[1]) ? $argv[1] : '0.0.0.0:0');
$http->listen($socket);

echo 'Listening on ' . str_replace('tcp:', 'http:', $socket->getAddress()) . PHP_EOL;