1：下载 ca-bundle.crt和cacert.pem(见导航栏——文件)
将这两个文件放在php目录下
2:php.ini中添加上述两个文件的路径
curl.cainfo=C:/xampp/php/ca-bundle.crt
openssl.cafile=C:/xampp/php/ca-bundle.crt
写到最后一行就可以
3：下载Composer-Setup.exe
https://getcomposer.org/download/
在该页面找到Composer-Setup.exe并下载安装（要求能vpnFQ）
4：安装如果出现错误
Notice: Undefined variable: caBundle in - on line 892
出现该错误的时候，找到错误路径打开install文件，找到892行
红线的地方报caBundle未定义，手动改成如下：
改完之后保存文件，并且退出Composer-Setup.exe（不要继续安装），然后重新安装，不报错，走完安装过程
5：验证安装结果：
6：安装Yii2
在服务器上建立访问目录yii2，
在github的个人信息的设置上生成一个token，后面创建项目的时候提示token(hidden)的时候将这个token复制上去
参照
http://www.yiiframework.com/download/
安装Yii2的最新版本，
注意要将下面这两行创建命令
php composer.phar global require "fxp/composer-asset-plugin:~1.1.1"
php composer.phar create-project yiisoft/yii2-app-basic basic 2.0.6改为：
composer global require "fxp/composer-asset-plugin:~1.1.1"
composer create-project yiisoft/yii2-app-basic basic 2.0.6如果是advanced项目：
composer create-project yiisoft/yii2-app-advanced advanced 2.0.6 然后等待安装，cmd显示如下：
Microsoft Windows [版本 10.0.10240] (c) 2015 Microsoft Corporation. All rights reserved.
C:\Users\jzzq>cd C:\xampp\htdocs\yii2
C:\xampp\htdocs\yii2>php composer.phar global require "fxp/composer-asset-plugin:~1.1.1" Could not open input file: composer.phar
C:\xampp\htdocs\yii2>composer self-update You are already using composer version 03299ff075236be27be356498d6c64def973fe41.
C:\xampp\htdocs\yii2>php composer.phar global require "fxp/composer-asset-plugin:~1.1.1" Could not open input file: composer.phar
C:\xampp\htdocs\yii2>composer global require "fxp/composer-asset-plugin:~1.1.1" Changed current directory to C:/Users/jzzq/AppData/Roaming/Composer Deprecation Notice: The Composer\Package\LinkConstraint\MultiConstraint class is deprecated, use Composer\Semver\Constraint\MultiConstraint instead. in phar://C:/ProgramData/ComposerSetup/bin/composer.phar/src/Composer/Package/LinkConstraint/MultiConstraint.php:17 Deprecation Notice: The Composer\Package\LinkConstraint\LinkConstraintInterface interface is deprecated, use Composer\Semver\Constraint\ConstraintInterface instead. in phar://C:/ProgramData/ComposerSetup/bin/composer.phar/src/Composer/Package/LinkConstraint/LinkConstraintInterface.php:17 ./composer.json has been updated Loading composer repositories with package information Updating dependencies (including require-dev) - Removing fxp/composer-asset-plugin (v1.0.3) - Installing fxp/composer-asset-plugin (v1.1.1) Downloading: 100%
Writing lock file Generating autoload files
C:\xampp\htdocs\yii2>php composer.phar create-project yiisoft/yii2-app-basic basic 2.0.6 Could not open input file: composer.phar
C:\xampp\htdocs\yii2>composer create-project yiisoft/yii2-app-basic basic 2.0.6 Installing yiisoft/yii2-app-basic (2.0.6) - Installing yiisoft/yii2-app-basic (2.0.6) Loading from cache
Created project in basic Loading composer repositories with package information Installing dependencies (including require-dev) - Installing yiisoft/yii2-composer (2.0.3) Loading from cache
- Installing ezyang/htmlpurifier (v4.6.0) Loading from cache
- Installing bower-asset/jquery (2.1.4) Loading from cache
- Installing bower-asset/yii2-pjax (v2.0.5) Loading from cache
- Installing bower-asset/punycode (v1.3.2) Loading from cache
- Installing bower-asset/jquery.inputmask (3.1.63) Loading from cache
- Installing cebe/markdown (1.1.0) Loading from cache
- Installing yiisoft/yii2 (2.0.6) Loading from cache
- Installing swiftmailer/swiftmailer (v5.4.1) Loading from cache
- Installing yiisoft/yii2-swiftmailer (2.0.4) Loading from cache
- Installing yiisoft/yii2-codeception (2.0.4) Loading from cache
- Installing bower-asset/bootstrap (v3.3.5) Loading from cache
- Installing yiisoft/yii2-bootstrap (2.0.5) Loading from cache
- Installing yiisoft/yii2-debug (2.0.5) Loading from cache
- Installing bower-asset/typeahead.js (v0.10.5) Loading from cache
- Installing phpspec/php-diff (v1.0.2) Loading from cache
- Installing yiisoft/yii2-gii (2.0.4) Loading from cache
- Installing fzaninotto/faker (v1.5.0) Loading from cache
- Installing yiisoft/yii2-faker (2.0.3) Loading from cache
fzaninotto/faker suggests installing ext-intl (*) Writing lock file Generating autoload files > yii\composer\Installer::postCreateProject chmod(‘runtime‘, 0777)...done. chmod(‘web/assets‘, 0777)...done. chmod(‘yii‘, 0755)...done.
C:\xampp\htdocs\yii2>composer create-project yiisoft/yii2-app-advanced advanced 2.0.6 Installing yiisoft/yii2-app-advanced (2.0.6) - Installing yiisoft/yii2-app-advanced (2.0.6) Downloading: 100%
Created project in advanced Loading composer repositories with package information Installing dependencies (including require-dev) - Installing yiisoft/yii2-composer (2.0.3) Loading from cache
- Installing ezyang/htmlpurifier (v4.6.0) Loading from cache
- Installing cebe/markdown (1.1.0) Loading from cache
- Installing bower-asset/jquery (2.1.4) Loading from cache
- Installing bower-asset/jquery.inputmask (3.1.63) Loading from cache
- Installing bower-asset/punycode (v1.3.2) Loading from cache
- Installing bower-asset/yii2-pjax (v2.0.5) Loading from cache
- Installing yiisoft/yii2 (2.0.6) Loading from cache
- Installing swiftmailer/swiftmailer (v5.4.1) Loading from cache
- Installing yiisoft/yii2-swiftmailer (2.0.4) Loading from cache
- Installing yiisoft/yii2-codeception (2.0.4) Loading from cache
- Installing bower-asset/bootstrap (v3.3.5) Loading from cache
- Installing yiisoft/yii2-bootstrap (2.0.5) Loading from cache
- Installing yiisoft/yii2-debug (2.0.5) Loading from cache
- Installing bower-asset/typeahead.js (v0.10.5) Loading from cache
- Installing phpspec/php-diff (v1.0.2) Loading from cache
- Installing yiisoft/yii2-gii (2.0.4) Loading from cache
- Installing fzaninotto/faker (v1.5.0) Loading from cache
- Installing yiisoft/yii2-faker (2.0.3) Loading from cache
fzaninotto/faker suggests installing ext-intl (*) Writing lock file Generating autoload files
C:\xampp\htdocs\yii2>