Do you have experience using the Pusher service for real-time data exchange?

Yes, I have experience using Pusher for real-time data exchange. Pusher provides a convenient API for implementing WebSocket connections, allowing you to send and receive events instantly without needing to refresh the page.

Example of using Pusher in PHP:

require 'vendor/autoload.php';

$pusher = new Pusher\Pusher('app_key', 'app_secret', 'app_id', [
    'cluster' => 'eu',
    'useTLS' => true
]);

$data = ['message' => 'Hello, world!'];
$pusher->trigger('my-channel', 'my-event', $data);

This allows, for example, to implement chat, notifications, or real-time data updates on the client.