Answers for "how to instal laravel"

laravel install

composer global require laravel/installer

laravel new example-app

cd example-app

php artisan serve

install laravel

laravel install on windows
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1-composer install
https://getcomposer.org/download/
2-laravel install using composer
composer global require laravel/installer
3-create new project
laravel new blog
cd blog 
4-serve project to localhost
php artisan serve

install laravel on windows

composer global require "laravel/installer=~1.1"

Install laravel using composer

composer create-project --prefer-dist laravel/laravel blog "5.4.*"

laravel install

composer create-project --prefer-dist laravel/laravel blog "5.6.*"