Composer 常用命令 有大用

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

composer require monolog/monolog 1.19

composer dump-autoload  或者 composer dumpautoload 如果更新了composer.json需要更新autoload 

composer dump-autoload --optimize  

安装包的时候可以同样使用--optimize-autoloader。不加这一选项，你可能会发现20%到25%的性能损失。性能提高 性能提升

来自 http://blog.csdn.net/nick_php/article/details/53994310