How to Install PHP 8 on Debian 12

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PHP 8.2 is a major update of the PHP language. It contains many new features, including readonly classes, null, false, and true as stand-alone types, deprecated dynamic properties, performance improvements and more.

Update the System

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Update the Debian 12 using the following command.

apt update

To Add SURY PHP PPA repository.

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First, download the GPG key.

apt -y install lsb-release apt-transport-https ca-certificates 
wget -O /etc/apt/trusted.gpg.d/php.gpg https://packages.sury.org/php/apt.gpg

Next, add SURY to the repository.

echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" | tee /etc/apt/sources.list.d/php.list

Output:

root@server:~# echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" | tee /etc/apt/sources.list.d/php.list

deb https://packages.sury.org/php/ bullseye main

Install PHP 8.2

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Ensure the added package is up to date.

apt update

If any update is available update the system and reboot.

apt upgrade -y && reboot

To install PHP 8.2

apt -y install php8.2

Output:

root@vps:~# apt -y install php8.2
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
  apache2 apache2-bin apache2-data apache2-utils libapache2-mod-php8.2 libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap
  libcurl4 liblua5.3-0 libsodium23 php-common php8.2-cli php8.2-common php8.2-opcache php8.2-readline psmisc ssl-cert

To check the PHP version.

php -v

Output:

root@vps:~# php -v
PHP 8.2.7 (cli) (built: Jun  9 2023 07:38:17) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.2.7, Copyright (c) Zend Technologies
    with Zend OPcache v8.2.7, Copyright (c), by Zend Technologies
root@vps:~# 

Installing PHP Extensions

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Install PHP Extensions by running the following command

apt install php8.2-<extension>

NOTE: Replace the required extensions name like below command

apt install php8.2-apcu

Output:

root@vps:~# apt install php8.2-apcu
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Suggested packages:
  php-gd
The following NEW packages will be installed:
  php8.2-apcu

To list installed php modules/extensions.

php -m

NOTE

• PHP configurations related to Apache is stored in /etc/php/8.2/apache2/php.ini this file.

• If you want to use PHP with Nginx you can follow this guide Click here.

This concludes our topic of installing PHP 8.2 on the Debian 12 system.