public static function StrCaseReverse($pValue = '')
    {
        if (self::getIsMbstringEnabled()) {
            $characters = self::mb_str_split($pValue);
            foreach ($characters as &$character) {
                if (self::mb_is_upper($character)) {
                    $character = mb_strtolower($character, 'UTF-8');
                } else {
                    $character = mb_strtoupper($character, 'UTF-8');
                }
            }
            return implode('', $characters);
        }
        return strtolower($pValue) ^ strtoupper($pValue) ^ $pValue;
    }