How to Install PHP 8.3 on Ubuntu 23.10

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PHP 8.3 is a major update of the PHP language. It contains many new features, such as explicit typing of class constants, deep-cloning of read-only properties, and additions to the randomness functionality. As always it also includes performance improvements, bug fixes, and general cleanup.

To install a specific version of PHP on Ubuntu 23.10, you can use the ondrej/php repository, which provides up-to-date PHP versions. Below are the steps to install PHP 8.3 on Ubuntu 23.10

Update the System

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Update and Upgrade System Packages,

apt update -y

apt upgrade -y

Install PHP 8.3

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Install Software Properties Common,

apt install software-properties-common

Add PHP Repository,

add-apt-repository ppa:ondrej/php

Edit the PHP Repository File,

nano /etc/apt/sources.list.d/ondrej-ubuntu-php-mantic.sources

Change the suits from the mantic version to jammy,

Types: deb
URIs: https://ppa.launchpadcontent.net/ondrej/php/ubuntu/
Suites: mantic
Components: main

to

Types: deb
URIs: https://ppa.launchpadcontent.net/ondrej/php/ubuntu/
Suites: jammy
Components: main

Run the update command again,

apt update

Create a preference file for Ondrej's PHP repository by creating the file '/etc/apt/preferences.d/ondrejphp' and adding the below content,

Package: libgd3
Pin: release n=mantic
Pin-Priority: 900

Install PHP 8.3,

apt install php8.3 php8.3-cli php8.3-fpm

Install Additional PHP Extensions,

apt install php8.3-{mysql,curl,xsl,gd,common,xml,zip,xsl,soap,bcmath,mbstring,gettext}

Check and verify PHP 8.3 is installed by running the below command,

php -v

Output:

root@server:~# php -v
PHP 8.3.0 (cli) (built: Nov 24 2023 08:50:08) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.3.0, Copyright (c) Zend Technologies
    with Zend OPcache v8.3.0, Copyright (c), by Zend Technologies
root@server:~# 

You have successfully installed PHP 8.3 on Ubuntu 23.10, unlocking the latest features and improvements in PHP development.