(1)更新apt-get源 

apt-get update

(2)安装add-apt-repository命令依赖

apt-get install software-properties-common

(3)添加php源

add-apt-repository ppa:ondrej/php

(4)更新apt-get源 

apt-get update

(5)安装apache2

apt-get install apache2

(6)安装php7

apt-get install php7.2

(7)启动apache2

/etc/init.d/apache2 start