Sandbox::https://github.com/Leantime/reactphp-http/blob/3.x/examples/55-server-cookie-handling.php

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<?php

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

$http = new React\Http\HttpServer(function (Psr\Http\Message\ServerRequestInterface $request) {

$key = 'greeting';

if (isset($request->getCookieParams()[$key])) {

$body = "Your cookie value is: " . $request->getCookieParams()[$key] . "\n";

return React\Http\Message\Response::plaintext(

$body

);

}

return React\Http\Message\Response::plaintext(

"Your cookie has been set.\n"

)->withHeader('Set-Cookie', $key . '=' . urlencode('Hello world!'));

});

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

$http->listen($socket);

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