PlayerQuitEvent doesn't work correctly

I want to set the Quit Message with Permission but it only sets it for Ops, code:

PHP:

public function onLeave(PlayerQuitEvent $event){
            $player = $event->getPlayer();
            if(!$player->hasPermission("permission.permission")|| !$player->isOp()){
                $event->setQuitMessage("");
            } else{
                $event->setQuitMessage($player->getName() . " joined the game");
            }
        }

I don't understand well what you want to do. Do you want to set the message only for OPs?

If its onLeave why does the else statement say joined, should it not be left

because the player doesnt have the permission?

The message is judt an example. I want to set a custom message to players with a permission but if I do so, the permission doesn't work but Ops have the custom message. It works at PlayerJoinEvent tho

Your code is wrong.
This should work:

PHP:

public function onLeave(PlayerQuitEvent $event){
            $player = $event->getPlayer();
            if(!$player->hasPermission("permission.permission") && !$player->isOp()){
                $event->setQuitMessage("");
            } else{
                $event->setQuitMessage($player->getName() . " joined the game");
            }
        }


Or better

PHP:

public function onLeave(PlayerQuitEvent $event){
            $player = $event->getPlayer();
            if($player->hasPermission("permission.permission") || $player->isOp()){
                $event->setQuitMessage($player->getName() . " joined the game");
            } else{
                $event->setQuitMessage("");
            }
        }

What is the point of checking whether the player is op when you already checked whether the player has the permission?