apt-get install php5.6-soap
3)安装php5.6及常用组件
sudo apt-get install php5.6
sudo apt-get install php5.6-gd
sudo apt-get install php5.6-mysql
sudo apt-get install php5.6-mbstring
sudo apt-get install php5.6-zip
sudo apt-get install php5.6-curl
Apache2重启：
sudo /etc/init.d/apache2 restart