Warning: mysql_connect(): Access denied for user 'root'@'localhost' (using password: YES) in D:\AppServ\www\khoaichau.edu.vn\Data\One\connection_data.php on line 6

Warning: mysql_error() expects parameter 1 to be resource, boolean given in D:\AppServ\www\khoaichau.edu.vn\Data\One\connection_data.php on line 9
khng n?t n?i du?c vo MySQL server: