Check if inventory has no items

How I can check this? I'm not pretty sure...

get the inv array and check it?

And how I can check it? :/

SOLVED, I was checking PocketMine classes and I saw firstEmpty x)
I suppose that

PHP:

$inv->firstEmpty() == 0;


is enought.
Thanks!

No. What if there's a stack in the second slot?
You must iterate over every slot and check if the inventory has a slot that isn't air.

Something like this?

PHP:

if(count($inv->getContents()) === 0){

}

My life is easier with you.

Are you sure it doesn't return an array full of air items?

In my case, I'm sure. I'm using it on a plugin and works fine.

Here is your solution:

PHP:

public function isInventoryEmpty(Player $player) {
  for($i = 0; $i < $player->getInventory()->getSize(); $i++) {
    if($player->getInventory()->getItem($i)->getId() == 0) {
      return true;
    }
  }
}

Nope, that will return true when it finds the first empty slot

PHP:

public function isInventoryEmpty(Player $player) {
  for($i = 0; $i < $player->getInventory()->getSize(); $i++) {
    if($player->getInventory()->getItem($i)->getId() !== 0) {
      return false;
    }
  }
  return true;
}