SQLSTATE[HY000] [1049] Unknown database 'localhost'

Im facing this error in laravel

I want to connect Db but this isn’t connected with DB. I want to resolve this problem Database

>Solution :

please set the .env file database portion as below:

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=your_database_name
DB_USERNAME=your_database_username
DB_PASSWORD=your_database_password

and then these command:

php artisan cache:clear 

or

php artisan config:clear

Note: if you do have not any .env file, create a .env in your root of the project and copy the .env.example and set your credentials on it.