static function truncate string length 80 etc break_words false if len

    static function truncate($string, $length = 80, $etc = '...', $break_words = false) 
    { 
        if ($length <= 0) { 
            return ''; 
        } 

        $encoding = mb_detect_encoding($string); 
         
        if (mb_strlen($string, $encoding) > $length) { 
            $length -= mb_strlen($etc, $encoding); 
            $string = html_entity_decode($string, ENT_COMPAT, $encoding); 
            if (!$break_words) { 
                $string = preg_replace('/\s+?(\S+)?$/', '', mb_substr($string, 0, $length+1, $encoding)); 
            } 
            $string = mb_substr($string, 0, $length, $encoding) . $etc; 
        }  
         
        return $string; 
    }