moni17 wrote:If I change to parameter "cookie" as originally "config" I cannot get into phpMyAdmin,
sorry, but why ???
With "cookie" you are prompted in a login dialog for a valid userid and password. if you use "config" instead, you are not prompted for userid an password, instead phpmyadmin uses the values for userid and password as they are applied in config.inc.php
With "cookie" the setting of userid and password in config.inc.php is ignored, you must enter valid data in the login dialog. After then phpmyadmin tries to login to MySQL with this Userid/Password. If you do not enter valid data, login will fail. The default user/password in a brandnew Xampp installation is "root" and no password (leave it empty).
Last not least, i have no idea what you mean by "DB rules"?!