The phpMyAdmin account is actually the account you use to access the MySQL database. What you need to know now is that phpMyAdmin, your website, and website database may not be on the same machine. If you only want to change the password, you can directly use phpMyAdmin to modify it. On the right-side page of phpMyAdmin, select "permission", find your users in the list, and click "edit" to modify them. However, if it is convenient, you can modify it on the MySQL database server. In this way, you can change the user name or password. You can log on to the MySQL database locally or remotely. In short, you can log on to the database as an administrator and then enter the following commands in sequence:> use MySQL; // open the database> Update user set user = 'new username 'where user = 'old Username ';> Update user SET Password = PASSWORD ("new password ") where user = 'new username';> flush privileges; // refresh the user permission table and the modification is successful.