How to fix minecraft crash when connecting to the server?

I added a new item and after that minecraft began to crash

Code:

PHP:

$id = 440;
$name = "New Item Name";

ItemFactory::registerItem(new Item($id,0,$name), false);

Item::addCreativeItem(Item::get($id));

 

It doesn't work like that... 440 isn't a valid item id.

 

Well.. How can I add new item to pmmp?
With a texture.

 

I doubt the possibility of that being conceivable.

 

It's possible. I've seen that.

 

You may only change the behaviour or texture of existing items, adding new item IDs is not possible due to how Minecraft works.