composer 安装

任意目录执行：
php -r "copy('https://install.phpcomposer.com/installer', 'composer-setup.php');"
执行安装
php composer-setup.php
安装完成之后可以删除安装文件
php -r "unlink('composer-setup.php');"
将composer设置成全局命令
mv composer.phar /usr/local/bin/composer
使用国内镜像
composer config -g repo.packagist composer https://packagist.phpcomposer.com

Yii2 安装

安装yii2的前端依赖包
composer global require "fxp/composer-asset-plugin:^1.4.0"
若提示如下报错，修改php.ini配置参数disable_functions，注释此行或启用escapeshellcmd方法

[ErrorException]
capeshellarg() has been disabled for security reasons

安装Yii2
composer create-project yiisoft/yii2-app-advanced /usr/local/yii2 2.0.13
/usr/local/yii2为约定的yii2框架目录，yii2最终会被安装到此目录，提示如下报错，重新执行命令

[Composer\Repository\InvalidRepositoryException] No valid bower.json was found in any branch or tag of https://github.com/twitter/typeahead.js.git, could not load a package from it.

vim /usr/local/yii2/composer.json
"config": {
        "process-timeout": 1800,
        "github-oauth": {
          "github.com": "此处输入您的github授权码"
          }
    },

composer 升级
cd /usr/local/yii2/
composer update

安装可能提示输入github token，登录github生成一个填上回车即可

将yii2镜像地址换为国内镜像

cd /usr/local/yii2/
composer config repo.packagist composer https://packagist.phpcomposer.com

依赖包的安装

cd /usr/local/yii2
#安装redis扩展包
composer require --prefer-dist yiisoft/yii2-redis 
#安装curl扩展包
composer require --prefer-dist linslin/yii2-curl "*"
#邮件扩展包，不是必须
composer require --prefer-dist yiisoft/yii2-swiftmailer
#日期选择器挂件依赖包
composer require kartik-v/yii2-widget-datetimepicker "*" 

升级及管理

composer update yiisoft/yii2 yiisoft/yii2-composer bower-asset/jquery.inputmask