Send event from php controller - php

Question

Good morning everyone.
I need to send a notification whenever a user swipes a tab on a particular sensor.
The problem is not the connection to the sensor, which at this moment already takes place and subject to user access.
Currently I have created a server socket inside my yii2 app to be able to send the notification event to the client and update them in real time.
This is my controller server
class ServerController extends Controller
{
public function actionStart()
{
// $server = new CommandsServer();
$server = new ChatServer();
$server->port = 80; //This port must be busy by WebServer and we handle an error
$server->on(WebSocketServer::EVENT_WEBSOCKET_OPEN_ERROR, function ($e) use ($server) {
echo "Error opening port " . $server->port . "\n";
$server->port += 1; //Try next port to open
$server->start();
});
$server->on(WebSocketServer::EVENT_WEBSOCKET_OPEN, function ($e) use ($server) {
echo "Server started at port " . $server->port;
});
$server->start();
}
}
This is my chat server which I created for testing
<?php
namespace frontend\daemons;
use consik\yii2websocket\events\WSClientEvent;
use consik\yii2websocket\WebSocketServer;
use Ratchet\ConnectionInterface;
class ChatServer extends WebSocketServer
{
public function init()
{
parent::init();
$this->on(self::EVENT_CLIENT_CONNECTED, function (WSClientEvent $e) {
$e->client->name = null;
});
}
protected function getCommand(ConnectionInterface $from, $msg)
{
$request = json_decode($msg, true);
return !empty($request['action']) ? $request['action'] : parent::getCommand($from, $msg);
}
public function commandPing(ConnectionInterface $client, $msg)
{
$arr = ["Neo", "Morpheus", "Trinity", "Cypher", "Tank"];
$res = ['type' => 'ping', 'message' => json_encode(array_rand($arr, 1))];
foreach ($this->clients as $chatClient) {
$chatClient->send(json_encode($res));
}
}
}
Now, what I wish I could do is be able to use that commandPing inside another controller, but I haven't found a way I can implement this.
In this sense the round would be:
user swipes card on sensor -> the sensor calls my method to see if the user is actually authorized to enter -> I call commandPing (as an example) to send a notification to the customer (OK / KO )
On the web interface side I will then intercept the message via new Websocket (but this is not a problem)