how to set up php7 on ubuntu code example

Example 1: install php 7.1 on ubuntu 18.04

sudo apt install php7.1 php7.1-common php7.1-opcache php7.1-mcrypt php7.1-cli php7.1-gd php7.1-curl php7.1-mysql

Example 2: installing php on ubuntu

sudo apt install php7.2-cli
sudo apt install hhvm