Composer安装Yii2，希望对安装不成功的朋友有所帮助
1.先测试一下composer安装是否成功：
composer -V出现下面的composer版本信息说明composer全局安装已经顺利完成！
Composer version 1.6.3 2018-01-31 16:28:172.将Composer更新站点替换为中国全量镜像（很重要，此步没做以后的都不会成功）
composer config -g repo.packagist composer https://packagist.phpcomposer.com到此为止，你就可以使用作曲家进行Yii2的安装了
3.安装FXP /composer - asset 插件，如果版本不对则会报一堆的错误
composer global require "fxp/composer-asset-plugin:~1.1.1"对应版本可以去 https://packagist.org/packages/fxp/composer-asset-plugin 查找
Changed current directory to /root/.config/composer
./composer.json has been updated
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 0 installs, 1 update, 0 removals
- Updating fxp/composer-asset-plugin (v1.1.4 => v1.4.5): Downloading (100%) The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
Writing lock file
Generating autoload files
4.安装Yii2，所有的部件都是Downloading: 100%，最后才会显示安装成功，如果卡在Downloading说明“中国全量镜像”未设置成功。
composer create-project --prefer-dist yiisoft/yii2-app-basic basic安装过程：
Installing yiisoft/yii2-app-basic (2.0.19)
- Installing yiisoft/yii2-app-basic (2.0.19): Loading from cache
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
Created project in basic
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 57 installs, 0 updates, 0 removals
- Installing yiisoft/yii2-composer (2.0.7): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpspec/php-diff (v1.1.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing bower-asset/jquery (3.4.1): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing bower-asset/yii2-pjax (2.0.7.1): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing bower-asset/punycode (v1.3.2): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing bower-asset/inputmask (3.3.11): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing cebe/markdown (1.2.1): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing ezyang/htmlpurifier (v4.10.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing yiisoft/yii2 (2.0.20): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing yiisoft/yii2-gii (2.1.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing codeception/verify (0.4.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing myclabs/deep-copy (1.6.1): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing codeception/specify (0.4.6): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing bower-asset/bootstrap (v3.4.1): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing yiisoft/yii2-bootstrap (2.0.10): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing swiftmailer/swiftmailer (v5.4.12): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing yiisoft/yii2-swiftmailer (2.0.7): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing yiisoft/yii2-debug (2.1.5): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing fzaninotto/faker (v1.8.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing yiisoft/yii2-faker (2.0.4): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing doctrine/instantiator (1.0.5): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpunit/php-text-template (1.2.1): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing sebastian/recursion-context (1.0.5): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing sebastian/exporter (1.2.2): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpunit/phpunit-mock-objects (2.3.8): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing codeception/stub (1.0.4): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing sebastian/diff (1.4.3): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing sebastian/comparator (1.2.4): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing behat/gherkin (v4.4.5): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing symfony/polyfill-mbstring (v1.11.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing symfony/polyfill-ctype (v1.11.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing symfony/dom-crawler (v3.4.28): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing symfony/css-selector (v3.4.28): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing symfony/browser-kit (v3.4.28): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing symfony/yaml (v3.4.28): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing symfony/event-dispatcher (v3.4.28): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing psr/log (1.1.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing symfony/debug (v3.4.28): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing symfony/console (v3.4.28): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing symfony/finder (v3.4.28): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing ralouphie/getallheaders (2.0.5): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing psr/http-message (1.0.1): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing guzzlehttp/psr7 (1.5.2): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpunit/php-file-iterator (1.4.5): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpunit/php-token-stream (1.4.12): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing sebastian/version (1.0.6): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing sebastian/environment (1.3.8): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpunit/php-code-coverage (2.2.4): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpunit/php-timer (1.0.9): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing webmozart/assert (1.4.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpdocumentor/reflection-common (1.0.1): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpdocumentor/type-resolver (0.3.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpdocumentor/reflection-docblock (3.2.2): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpspec/prophecy (1.8.0): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing sebastian/global-state (1.1.1): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing phpunit/phpunit (4.8.36): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
- Installing codeception/base (2.3.9): Downloading (100%)
The Process class relies on proc_open, which is not available on your PHP installation.
The archive may contain identical file names with different capitalization (which fails on case insensitive filesystems)
Unzip with unzip command failed, falling back to ZipArchive class
symfony/browser-kit suggests installing symfony/process ()
symfony/event-dispatcher suggests installing symfony/dependency-injection ()
symfony/event-dispatcher suggests installing symfony/http-kernel ()
symfony/console suggests installing symfony/lock ()
symfony/console suggests installing symfony/process ()
phpunit/php-code-coverage suggests installing ext-xdebug (>=2.2.1)
sebastian/global-state suggests installing ext-uopz (*)
phpunit/phpunit suggests installing phpunit/php-invoker (~1.1)
codeception/base suggests installing aws/aws-sdk-php (For using AWS Auth in REST module and Queue module)
codeception/base suggests installing codeception/phpbuiltinserver (Start and stop PHP built-in web server for your tests)
codeception/base suggests installing flow/jsonpath (For using JSONPath in REST module)
codeception/base suggests installing phpseclib/phpseclib (for SFTP option in FTP Module)
codeception/base suggests installing league/factory-muffin (For DataFactory module)
codeception/base suggests installing league/factory-muffin-faker (For Faker support in DataFactory module)
codeception/base suggests installing symfony/phpunit-bridge (For phpunit-bridge support)
codeception/base suggests installing stecman/symfony-console-completion (For BASH autocompletion)
Package phpunit/phpunit-mock-objects is abandoned, you should avoid using it. No replacement was suggested.
Writing lock file
Generating autoload files
> yii\composer\Installer::postCreateProject
chmod('runtime', 0777)...done.
chmod('web/assets', 0777)...done.
chmod('yii', 0755)...done.
> yii\composer\Installer::postInstall好！看看你的Yii2是否已经安装成功！
常用composer命令：
composer更新composer.phar：
composer selfupdate更新缓存：
composer clear-cache希望大家都一次就安装成功 ^v^