composer安装失败

Some settings on your machine make Composer unable to work properly.
Make sure that you fix the issues listed below and run this script again:

The openssl extension is missing, which means that secure HTTPS transfers are impossible.
If possible you should enable it or recompile php with --with-openssl

一直出现这段错误提示，真的不知道怎么搞，php.ini的openssl已经启动了，查看phpinfo也能查看到openssl，我用的xampp集成的，php版本为5.6，求教啊，

回复内容：

Some settings on your machine make Composer unable to work properly.
Make sure that you fix the issues listed below and run this script again:

The openssl extension is missing, which means that secure HTTPS transfers are impossible.
If possible you should enable it or recompile php with --with-openssl

一直出现这段错误提示，真的不知道怎么搞，php.ini的openssl已经启动了，查看phpinfo也能查看到openssl，我用的xampp集成的，php版本为5.6，求教啊，

在命令行里面 php -m 看一下。可能你是配置的 web 下面的 php.ini 而不是 cli 下面的 php.ini

composer

需要开启openssl的php扩展

用七牛做了个镜像:试看看?

curl -sS https://o1kh8c7bn.qnssl.com/installer | php
mv composer.phar /usr/local/bin/composer