Cmosguy\Broadcasting\Broadcasters\PushStreamBroadcaster::broadcast PHP Метод

    public function broadcast(array $channels, $event, array $payload = array())
    {
        foreach ($channels as $channel) {
            $payload = ['text' => array_merge(['eventtype' => $event], $payload)];
            $request = $this->client->createRequest('POST', '/pub?id=' . $channel, ['json' => $payload]);
            $response = $this->client->send($request);
        }
    }