public function strtolowereng($content)
    {

        $search      = array('ı', 'ş', 'ö', 'ü', 'ğ', 'Ö', 'Ü', 'Ş', 'İ');
        $new         = array('i', 's', 'o', 'u', 'g', 'o', 'u', 's', 'i');
        $new_content = str_replace($search, $new, $content);

        $content_ = mb_convert_encoding($new_content, 'ISO-8859-9', mb_detect_encoding($new_content, 'UTF-8', true));

        return $content_;
    }