how to set onClick ?

PHP:

public function onClick(PlayerInteractEvent $event){
        $player = $event->getPlayer();
        
        
    }

how to set item ID and sendMessage on this?

 

What do you want to accomplish?

PHP:

$player->sendMessage("Your message");


As for "set item ID", it doesn't make sense in this context without further explanation.

 

No I know send message .
set item id plz
And
I prefer not to say

 

sure, here you go

PHP:

$player->getInventory()->setItem(0, \pocketmine\item\ItemFactory::get(\pocketmine\item\ItemIds::DIAMOND_SWORD));


 

And message ?

 

Hello, i think you want to add item in to player inv?
for do this you need this code:

PHP:

public function GodWeedZao(PlayerInteractEvent $event) {

  $event->getPlayer()->getInventory()->addItem(Item::get(Item::DIAMOND, 0, 10)); // this will add items to player inventory (10 diamond).

  $event->getPlayer()->sendMessage("This is a Test !"); //sending msg to player
 }