The full command works like this:
php artisan serve --host=<host IP address> --port=<port to use>
php artisan serve --host=127.0.0.1 --port=8080
// run laravel project
php artisan serve --port="port" --host="host"
if your laravel application running in server/hosting,
just change DocumentRoot pointing to /path/to/your-laravel-app/public