Are there any recommended resources or tutorials for implementing user activity tracking and session management in PHP applications?

User activity tracking and session management are important aspects of web applications to monitor user behavior and manage user sessions effectively. One way to implement user activity tracking is to log user actions such as login, logout, page views, and other interactions. Session management involves creating, updating, and destroying user sessions to maintain user authentication and state across multiple requests.

// Start session
session_start();

// Log user activity
function logUserActivity($action) {
    $log = date('Y-m-d H:i:s') . ' - ' . $action . PHP_EOL;
    file_put_contents('user_activity.log', $log, FILE_APPEND);
}

// Example usage
logUserActivity('User logged in');

// Destroy session
session_destroy();