app\controllers\TasksController::actionGetDates PHP Method

    public function actionGetDates()
    {
        $time = $_POST['time'];
        $dates = TaskRunner::getRunDates($time);
        if (empty($dates)) {
            echo 'Invalid expression';
            return;
        }
        echo '<ul>';
        foreach ($dates as $d) {
            /**
             * @var \DateTime $d
             */
            echo '<li>' . $d->format('Y-m-d H:i:s') . '</li>';
        }
        echo '</ul>';
    }