Answers for "laravel add servcer tutorial"

php artisan serve

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

create project command in laravel

Before starting this hope you installed composer dependancy manager for PHP.
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So if you want to create a project by name of 'first_laravel_app' in directory C:/xampp/htdocs/ then what you need to do is

Locate your project parent directory using cmd
>cd c:/xampp/htdocs

and fire this command 
>composer create-project laravel/laravel first_laravel_app --prefer-dist

And its done, this is really easy and it also creates Application Key automatically for you.
  
# I hope it will help you.
# Namaste