Composer php 软件包依赖管理器
composer list #显示所有命令
composer show #显示所有包信息
composer install #在 composer.json 配置中添加依赖库之后运行此命令安装
composer create-project laravel/laravel Laravel --prefer-dist 5.1.* #创建项目
composer search packagename #搜索包
composer update #更新所有包
composer update monolog/monolog #更新指定包
composer remove monolog/monolog #移除指定的包
composer require monolog/monolog #添加指定包
composer require monolog/monolog:1.19 #添加指定包和版本
composer require monolog/monolog=1.19 #添加指定包和版本
composer require monolog/monolog 1.19 #添加指定包和版本
composer dump-autoload #如果更新了composer.json需要更新autoload