PHP-kod:
$real_url = "http://nelly.com/se/kläder-för-kvinnor/sportkläder/sport-bh/filippa-k-soft-sport-2123/yoga-bra-top-676373-99/";
$new_url = urlencode($real_url);
// $new_url: http://nelly.com/se/kl%C3%A4der-f%C3%B6r-kvinnor/sportkl%C3%A4der/sport-bh/filippa-k-soft-sport-2123/yoga-bra-top-676373-99/