yii\rbac\PhpManager::addItem PHP Method

    protected function addItem($item)
    {
        $time = time();
        if ($item->createdAt === null) {
            $item->createdAt = $time;
        }
        if ($item->updatedAt === null) {
            $item->updatedAt = $time;
        }
        $this->items[$item->name] = $item;
        $this->saveItems();
        return true;
    }