pocketmine\OfflinePlayer::setOp PHP Метод

    public function setOp($value)
    {
        if ($value === $this->isOp()) {
            return;
        }
        if ($value === true) {
            $this->server->addOp(strtolower($this->getName()));
        } else {
            $this->server->removeOp(strtolower($this->getName()));
        }
    }