function login($username, $password) {
    global $db;
    
    // Clear any existing session
    session_unset();
    session_destroy();
    session_start();
    
    $stmt = $db->prepare("SELECT * FROM users WHERE username = ?");
    $stmt->execute([$username]);
    $user = $stmt->fetch(PDO::FETCH_ASSOC);
    
    if ($user && password_verify($password, $user['password'])) {
        // Regenerate session ID for security
        session_regenerate_id(true);
        
        $_SESSION['user_id'] = $user['id'];
        $_SESSION['username'] = $user['username'];
        $_SESSION['login_time'] = time();
        
        // Set secure session cookie params
        setcookie(
            session_name(),
            session_id(),
            [
                'lifetime' => 86400,
                'path' => '/',
                'domain' => $_SERVER['HTTP_HOST'],
                'secure' => true,
                'httponly' => true,
                'samesite' => 'Strict'
            ]
        );
        
        return true;
    }
    return false;
}<br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function get_setting() in /home/yushxyz/public_html/yushbhardwaj.com/index.php:8
Stack trace:
#0 {main}
  thrown in <b>/home/yushxyz/public_html/yushbhardwaj.com/index.php</b> on line <b>8</b><br />