webman如何实现 主动阻塞

public function index(Request $request)
    {
        $counter = 0;
        for ($i = 1; $i <= 10; $i++) {
            sleep(1);
            $counter++;
        }
        return $counter;
    }

composer require revolt/event-loop

'eventLoop' => Workerman\Events\Fiber::class,

use Workerman\Timer;

public function index(Request $request)
    {
        $counter = 0;
        for ($i = 1; $i <= 10; $i++) {
            Timer::sleep(1);
            $counter++;
        }
        return $counter;
    }