You you have to configure your database so that it would store all of the required data in it.
Follow the below steps
First of all , you have configure database .
Must copy the username , db_name & password as well from the above instructions, we would use them for connection with code.
Edit File Manager > public_html > www > your_project_folder >config.php file.
Enter your database name inside "db_username" string tag:.
$db_username="database_username"
Enter your database name inside "db_username" string tag:.
$db_password="database_password"
Enter your database name inside "db_username" string tag:.
$db_name="your_database_name"
Save it & its configured successfully.