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