pocketmine\Server::removePlayer PHP Method

    public function removePlayer(Player $player)
    {
        if (isset($this->identifiers[$hash = spl_object_hash($player)])) {
            $identifier = $this->identifiers[$hash];
            unset($this->players[$identifier]);
            unset($this->identifiers[$hash]);
            return;
        }
        foreach ($this->players as $identifier => $p) {
            if ($player === $p) {
                unset($this->players[$identifier]);
                unset($this->identifiers[spl_object_hash($player)]);
                break;
            }
        }
    }