从零开始学YII2框架（二）通过 Composer 安装扩展插件，yii2composer
从零开始学YII2框架（二）通过 Composer 安装扩展插件，yii2composer
目前yii2的扩展还不是很多，截止到今天，在官网一共有33个，不过这些插件中不乏有优秀的扩展插件，
我尝试了几个，发现了一系列好用的Yii2插件，作者是来自印度的krajee团队，他们写的插件都很好用。推荐一下。
krajee团队的网站：http://krajee.com，有几个不错的插件可以尝试。
下面来介绍Yii2的插件安装方法。通过Composer安装插件yii2-detail-view。
Git
推荐安装Git，Composer安装插件时候会用到Git Clone，Git官方下载网站：传送门
如果你没有安装过Git，CMD执行命令时会提示你git不是有效的命令。然后去找硬盘下载地址。实际上不安装git也没影响。
Windows下安装完Git，配置下环境变量，把;D:\Program Files\Git\bin加入Path环境变量中。
安装方法
yii2-detail-view
官方说明：
Installation The preferred way to install this extension is through composer. Either run: $ php composer.phar require kartik-v/yii2-detail-view "*" or add: "kartik-v/yii2-detail-view": "*" to the require section of your composer.json file.
这是相对于Linux环境下安装的方法，Windows下使用Composer
CMD下执行命令：composer require kartik-v/yii2-detail-view "*"
安装完毕，我们会看到安装过程中,安装了5个其他的插件，这些都是和yii2-detail-view有依赖关系的插件，
这就是Composer工具的好用之处，自动分析依赖关系，帮助我们完美安装。
在webroot/appname/vendor目录下看见"kartik-v"目录。看到路径下存放着6个目录。说明安装成功。
插件安装就到这里，至于如何使用。后面学习过程中再介绍。^_^
你php没有开启mongodb扩展～～～～和Composer没关系吧
打开你的php.ini 开启mongodb extension （把前面的“；”号去掉）
重启你的服务器（apache、iis...）
然后重试一下
如果是linux系统的，我也不清楚，你搜索下吧
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