Warning: ini_set(): Unknown encoding "utf8mb4" in ini setting in /www/wwwroot/test.com/db_connect.php on line 2

Warning: ini_set(): INI setting contains invalid encoding "utf8mb4" in /www/wwwroot/test.com/db_connect.php on line 2

Warning: mysqli::__construct(): (HY000/1045): Access denied for user 'xinghan'@'localhost' (using password: YES) in /www/wwwroot/test.com/db_connect.php on line 3
连接失败: Access denied for user 'xinghan'@'localhost' (using password: YES)