问：如何生成s.1688.com，taobao.com等中文搜索网址

Tks for reading For example, my PHP project have a list of links, each link like: "https://s.1688.com/selloffer/offer_search.htm?keywords=%C5%AE%CA%BF%CB%AF%D2%C2" for searching keyword: "女士睡衣",

Then, i deleted "%C5%AE" and my new result is "士睡衣". It means "女" = "%C5%AE"

so i have a question: "How can i encrypt chinese keyword like this?"

I looking forward to your help! thanks!

Code php encode url search 1688

$key = "女士钱包";
$str = mb_convert_encoding($key, "EUC-CN", "auto");
header("Location: https://s.1688.com/selloffer/offer_search.htm?keywords=$str");