PHP

: Unable to locate package php7.4-fpm

sudo apt install software-properties-common
sudo add-apt-repository ppa:ondrej/php
sudo apt update
sudo apt install php7.4
php -v

E: Unable to locate package php8.0

sudo apt update 
sudo apt install php8.0

E: Unable to locate package php7.2-fpm

My issue got solved by:

sudo apt install software-properties-common
sudo add-apt-repository ppa:ondrej/php
sudo apt update

sudo apt-get install php7.2-fpm php-mysql //Replace with the version you want