How to create new user in PhpMyAdmin at localhost?
Go to phpmyadmin at your localhost if you are using xampp server than go with http://localhost/phpmyadmin or if you are using easyphp than go with http://127.0.0.1/phpmyadmin
Now you can see different links related to phpmyadmin like database, sql, status, variables etc. Click on Privileges and now you will see different user is availble in your phpmyadmin. Look at the below of your list of users there is a link i.e. Add a new User. Click on Add a new User and you will see the form to create a new user.
Now enter your username for database, host (i.e. Localhost), password and re-type password and now select database for user and set the privileges for your database and click on go button.
Now your settings for new user or old user has been done for particular database.