A barebones Laravel 5.7 app.
This application supports the Getting Started with Laravel on Heroku article - check it out.
Make sure you have Composer and the Heroku CLI installed.
$ git clone https://github.com/narita1980/laravel-getting-started.git # or clone your own fork
$ cd laravel-getting-started
$ composer install
$ mv .env.example .env
$ php artisan key:generate
$ php artisan serve
Your app should now be running on 127.0.0.1:8000.
$ heroku create
$ git push heroku master
$ heroku config:set APP_KEY=$(php artisan --no-ansi key:generate --show)
$ heroku open
For more information about using Laravel on Heroku, see these Dev Center articles: