You access your database with the login and password chosen and as host: localhost
How to back up your database with phpMyAdmin?
Go to your phpMyAdmin, select the relevant database, and go to the Export tab
1 - In the Export frame, select the tables you want to save, and select the SQL format.
2 - In SQL options, check Structure and Data.
3 - Finally, in the Transmit box, check Transmit, then click Execute.
NB: Depending on the size of your database, you can also select a compression mode.
Error on a php page connecting to my database
Error: mysql: this user has already reached max_user_connections.
You have a maximum number of simultaneous connections to your
mysql database. This error message appears when all connections are active at the same time.