Solved Enter World Event it exists any function?

It has any function to get when player join's any world? Can anyone tell me how to do that event?
Example:

PHP:

public function(PlayerWorldJoin $event){
    $player = $event->getPlayer();
    if($player->getLevel()->getName() == "Level"){
        $player->sendMessage("Hi.");
    }
}


 

Thanks, and how can i get the player if he left that world?

 

same event

 

I know it.. That's why i have Solved tag fixed.