How to Install or Upgrade PHP 8.1 on Ubuntu 22.04

This tutorial also guides you to configure PHP INI settings, FPM settings, Pools, etc which is more useful for your application to run smooth.

PHP 8.1 is the current latest PHP version released on 2021. In this guide you are going to learn how to install the latest PHP version which is currently 8.1 on your Ubuntu 22.04 system or server and configure it with Apache and Nginx. By default Ubuntu 22.04 ships with PHP 8.1, you can install it easily. You will also learn how to install a different version of PHP and downgrade or upgrade your PHP version to latest or a previous one.

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