## Composer ``` composer create-project laravel/laravel folder_name composer create-project laravel/laravel folder_name --prefer-dist "5.8.*" composer install composer install --prefer-dist composer update composer update package/name composer dump-autoload [--optimize] composer self-update composer require [options] [--] [vendor/packages]... // 全局安裝 composer require global vendor/packages // 羅列所有擴展包括版本信息 composer show ```