Ubuntu uninstalling PHP

uninstall ：

One 、 Delete php Related packages and configurations of
    sudo apt-get autoremove php7*
Two 、 Delete Association
    sudo find /etc -name "*php*" |xargs  rm -rf
3、 ... and 、 eliminate dept list
    sudo apt purge `dpkg -l | grep php| awk '{print $2}' |tr "\n" " "`
Four 、 Check if the unloading is clean （ No return means that the uninstall is completed ）
    dpkg -l | grep php7.0