Created by Daniil Gentili (@danog).
This is a pure PHP async STUN implementation.
Usage:
composer require danog/stun
And then:
<?php
use danog\Stun\StunClient;
require 'vendor/autoload.php';
$stun = new StunClient("stun.l.google.com:19302");
var_dump($stun->bind());