to change database configuration please see api.php file, you must edit this data with yours.
We also include the dummy database file at backend folder, Step to import database
Step to import database :
1. create new database with any name, in cpanel its located at menu MySQL database
2. create/reuse user database and remember its password
3. connect user database with your database from number 1
4. Go to menu phpMyAdmin, import database_the_city.sql into created database number 1
5. still on The City database go to menu Operations, change Collation to utf8mb4_unicode_ci
and press GO
For first login you can login with username : user_place, password : user