ubuntu 16.04 upgrade php to 7.4 code example

Example 1: upgrade php to 7.3 ubuntu

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install -y php7.3

Example 2: install php 7.4 ubuntu

sudo apt update
sudo apt install php php-cli php-fpm php-json php-pdo php-mysql php-zip php-gd  php-mbstring php-curl php-xml php-pear php-bcmath

Example 3: ubuntu 16 upgrade php 7.0 to 7.4

sudo apt-add-repository ppa:ondrej/php