pocketmine\utils\Config::writeProperties PHP Метод

    private function writeProperties()
    {
        $content = "#Properties Config file\r\n#" . date("D M j H:i:s T Y") . "\r\n";
        foreach ($this->config as $k => $v) {
            if (is_bool($v) === true) {
                $v = $v === true ? "on" : "off";
            } elseif (is_array($v)) {
                $v = implode(";", $v);
            }
            $content .= $k . "=" . $v . "\r\n";
        }
        return $content;
    }