这里选择直接apt-get安装，因为比起自己编译简单多了，不需要自己配置什么
#sudo apt-get install curl libcurl3 libcurl3-dev php5-curl
安装后重启nginx
#nginx -s reload
岂知出现错误，php全部不能访问，查看错误日志如下：
2014/07/24 23:59:46 [crit] 40455#0: *229072 connect() to unix:/var/run/php5-fpm.sock failed (13: Permission denied) while connecting to upstream, client: 171.9
处理方式是：编辑/etc/php5/fpm/pool.d/www.conf文件，将以下的注释去掉:
listen.owner = www-data listen.group = www-data listen.mode = 0660
然后重启php5-fpm
sudo service php5-fpm restart
即可。参考文章：
After doing an upgrade on my Debian virtual server, which upgraded PHP and Nginx, I got a "502 Bad Gateway" error when browsing websites on that server. This post shows how to fix this problem, and the configuration option to prevent it occurring again on reboot.
tl;dr
Edit /etc/php5/fpm/pool.d/www.conf and uncomment the following:
listen.owner = www-data
listen.group = www-data
listen.mode = 0660
Then run:
sudo servi