Install PHP 8.3 in Ubuntu 20.04

Add PPAs

_$: sudo apt install ca-certificates apt-transport-https software-properties-common
_$: sudo add-apt-repository ppa:ondrej/php
_$: sudo add-apt-repository ppa:ondrej/nginx

Install PHP 8.3

_$: sudo apt install php8.3

Check the installation

_$: php --version
PHP 8.3.0 (cli) (built: Nov 24 2023 08:49:45) (NTS)
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