pocketmine\nbt\NBT::putItemHelper PHP Метод

    public static function putItemHelper(Item $item, $slot = null)
    {
        $tag = new CompoundTag(null, ["id" => new ShortTag("id", $item->getId()), "Count" => new ByteTag("Count", $item->getCount()), "Damage" => new ShortTag("Damage", $item->getDamage())]);
        if ($slot !== null) {
            $tag->Slot = new ByteTag("Slot", (int) $slot);
        }
        if ($item->hasCompoundTag()) {
            $tag->tag = clone $item->getNamedTag();
            $tag->tag->setName("tag");
        }
        return $tag;
    }

 public function setItem(Item $item, bool $setChanged = true)
 {
     $nbtItem = NBT::putItemHelper($item);
     $nbtItem->setName("Item");
     $this->namedtag->Item = $nbtItem;
     if ($setChanged) {
         $this->setChanged();
     }
 }