InventoryTransactionEvent

i copy paste a Code from a bedwars plugin but want to know what is what

PHP:

public function onTransaction(InventoryTransactionEvent $event) {
  $trans = $event->getTransaction()->getTransactions();
  $int = $event->getTransaction()->getInventories();
  $isChest = false;
  $isPlayer = false;
  $player;
  $chestNew;
  $realTrans;
  foreach ($trans as $t) {
  foreach ($int as $chest) {
  if (!($chest instanceof ChestInventory) && !($chest instanceof PlayerInventory)) {
  return;
  }
  $chest = $chest->getHolder();
  if ($chest instanceof Chest) {
  $chestNew = $chest->getBlock();
  $isChest = true;
  $realTrans = $t;
  }
  if ($chest instanceof Player) {
  $player = $chest;
  $isPlayer = true;
  }
  }
  }
  if ($isPlayer == true && $isChest == true) {
$mainChest = $player->getLevel()->getTile($chestNew);
if($mainChest instanceof Chest){
$realItemTrans = $realTrans->getTargetItem(); //item das gehandelt wird
$inventoryTrans = $mainChest->getInventory();
$itemTransID = $realTrans->getTargetItem()->getId();
if($itemTransID == 2){
foreach ($this->getServer()->getLevelByName("LobbyBW")->getPlayers() as $player) {
$player->sendMessage($this->prefix . "InventoryTransactionEvent works !");
$this->getLogger()->info($this->prefix . "InventoryTransactionEvent works !");
}
}
}
}
}


by the way ist dont work but i want that if the Player grab a item from the chest that he opens a new chest but dont know how and how i can get the player

I dont know

First, why do you copy a part of my Code? Second, if you copy, you need to understand what you did, and I see, you don't(there are mistakes in the code). Third, copying isn't coding - Learn PHP and the Pocketmine API and build your way up, instead of copying other Plugins/Codes.

Why does he even have your code lol

I made a thread because I needed help

I know there is a mistake because i wantto understand what the event does , but with you sentences "copy my code bla" i dont know what that is xD it works with other code but i copy paste and dont know what is what so i Ask again ... What variable is what and what does this do? ->
If($ItemTrans % 2 ==0){} ? What is %

% is remainder.

How Remainder ? Any example ?

Did you pass 3rd grade math?

Yes but dont know what remainder is , (my english skills) di this mean / 2 ?

3 / 2 = 1 ... 1

@Bluplayz i think he means "vermindern"

Hmm dont know but is any thing like this->

150 % *14

And the answer is 21 ??

Sigh... Just study PHP at codeacademy first. If you don't want to, then you are not worthy enough to be here.

This event does not fire for me...