What are the potential challenges of handling 500 Leiters and 100 Employees in a PHP system for Push Notifications?

One potential challenge of handling 500 Leiters and 100 Employees in a PHP system for Push Notifications is the scalability and performance issues that may arise when sending notifications to a large number of users. To address this, you can implement batch processing for sending notifications in chunks to avoid overloading the system.

// Function to send push notifications in batches
function sendPushNotificationsInBatches($users, $message) {
    $batchSize = 50; // Define the batch size
    $chunks = array_chunk($users, $batchSize); // Split users into batches

    foreach ($chunks as $chunk) {
        // Send push notifications to users in the current batch
        foreach ($chunk as $user) {
            sendPushNotification($user, $message);
        }
    }
}

// Example usage
$users = array_merge($leiters, $employees); // Combine Leiters and Employees
$message = "New notification message";

sendPushNotificationsInBatches($users, $message);