class PHPDaemonLoadHelper
    {
        protected $basePath;
        protected static $initialized = false;
        protected function __construct(){}
        public static function register($basePath)
        {
            if (self::$initialized) {
                return; // защита от повторной регистрации
            }
            self::$initialized = true;
            $instance = new self;
            $instance->basePath = $basePath;
            spl_autoload_register(array($instance, 'loadClass'));
        }
        public function loadClass($name) {
            $filePath = $this->basePath.DIRECTORY_SEPARATOR.$className.'.php';
            if (file_exists($filePath)) {
                include($filePath);
            }
        }
    }
    ...
    namespace \PHPDaemon\Applications;
    class DummyApp {
        public function __construct()
        {
            ...
            PHPDaemonLoadHelper::register('/var/www/mysite/classes');
        }
    }