如何为Phalcon Micro框架添加全局可访问变量？

$di = new \Phalcon\Di\FactoryDefault();

$di->setShared('globalVar', function () {
    return 'Hello, World!';
});

class MyController extends \Phalcon\Mvc\Controller
{
    public function indexAction()
    {
        $globalVar = $this->getDI()->getShared('globalVar');
        echo $globalVar; // 输出：Hello, World!
    }
}

class MyController extends \Phalcon\Mvc\Controller
{
    public function indexAction()
    {
        $globalVar = $this->getDI()->getShared('globalVar');
        $this->view->setVar('globalVar', $globalVar);
    }
}

<p><?php echo $globalVar; ?></p>