Composer无法下载文件 [英] Composer cannot download files

问题描述

我想在命令行上使用composer：

I am trying to use composer on command line :

php composer.phar update
php composer.phar install
php composer.phar self-update
php composer.phar selfupdate

无论我做什么，我总是收到相同的错误消息：

Whatever I do I always receive the same error message:

无法下载文件。无法打开流

File could not be downloaded. Failed to open stream

我在代理后面。如果我使用浏览器并输入与不使用命令行的URL相同的URL，则没有问题。

I am behind a proxy. If I use a browser and type the same URLs as the ones that didn't work with command line, there is no problem.

我该怎么办？

推荐答案

如果您在HTTP代理后面使用composer，可以使用标准 http_proxy 或 HTTP_PROXY env vars。只需将其设置为您的代理的URL。许多操作系统已为您设置此变量。

If you are using composer from behind an HTTP proxy, you can use the standard http_proxy or HTTP_PROXY env vars. Simply set it to the URL of your proxy. Many operating systems already set this variable for you.

例如：

 HTTP_PROXY="http://my-corp-proxy.mcdonalds" php composer.phar install

为了方便起见，您只需导出变量即可，如果你在Linux / OS X或Windows环境设置中将它放到bashrc中，那么您不必一直输入。

To make it easier, you can just export the variable, then you don't have to type it all the time.

 export HTTP_PROXY="http://my-corp-proxy.mcdonalds"
 php composer.phar install

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