安装 Mcrypt 包, 顺便安装 php 开发环境php
sudo apt-get install php5-mcrypt php5-dev
将配置文件连接给 PHPapache
sudo ln -s /etc/php5/conf.d/mcrypt.ini /etc/php5/mods-available
开启 Mcrypt 模块spa
sudo php5enmod mcryptsudo service apache2 restart