PHPDaemon\Network\IOStream::lookExact PHP Метод

    public function lookExact($n, $o = 0)
    {
        if (!isset($this->bev)) {
            return false;
        }
        if ($o + $n > $this->bev->input->length) {
            return false;
        }
        return $this->bev->input->substr($o, $n);
    }