我用phpstudy建bwapp靶场用浏览器打开的时候，就变成这样了
Warning: mysqli::mysqli(): (HY000/2054): Server sent charset unknown to the client. Please, report to the developers in D:\phpstudy_pro\WWW\bWAPP-master (2)\bWAPP-master\app\connect_i.php on line 23
Connection failed: Server sent charset unknown to the client. Please, report to the developers
你文件夹名是不是用了中文