NukeViet\Http\Http::mbstring_binary_safe_encoding PHP Method

    public static function mbstring_binary_safe_encoding($reset = false)
    {
        static $encodings = array();
        static $overloaded = null;
        if (is_null($overloaded)) {
            $overloaded = function_exists('mb_internal_encoding') and ini_get('mbstring.func_overload') & 2;
        }
        if ($overloaded === false) {
            return;
        }
        if (!$reset) {
            $encoding = mb_internal_encoding();
            array_push($encodings, $encoding);
            mb_internal_encoding('ISO-8859-1');
        }
        if ($reset and $encodings) {
            $encoding = array_pop($encodings);
            mb_internal_encoding($encoding);
        }
    }