Solved Remove dropped items

Hey there,

how can I remove dropped Items on a specific position or near this position?

PHP:

public function removeItems(Position $pos, $radius){
        foreach($pos->getLevel()->getEntities() as $ent){
            if($ent instanceof \pocketmine\entity\Item && $pos->distance($ent->getPosition() <= $radius)){
                $ent->close();
            }
        }
    }

Thanks works!