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Install PHP 8.2 on Debian 12

Warning! This version of PHP is outdated.

PHP 8.2 reached end of active support on 31 Dec 2024. As of today, PHP 8.2 is only receiving security related updates through 31 Dec 2026, at which point it will be considered end-of-life and receive no further updates. It's strongly recommended to upgrade to the latest version of PHP before then.

Installing PHP 8.2 on Debian 12

Prerequisites

Debian 12 (Bookworm) installed and updated
Root or sudo access to the system
Terminal access
Internet connection

Installation

Update the package list:
```
sudo apt update
```

Install required packages:

sudo apt install -y lsb-release ca-certificates apt-transport-https software-properties-common gnupg2

Add the Sury PHP repository:

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

Import the repository GPG key:

wget -qO - https://packages.sury.org/php/apt.gpg | sudo apt-key add -

Update the package list again:
```
sudo apt update
```

Install PHP 8.2 and common extensions:

sudo apt install -y php8.2 php8.2-cli php8.2-common php8.2-curl php8.2-mbstring php8.2-xml php8.2-zip

Verification

Check the installed PHP version:
```
php -v
```
Verify PHP configuration:
```
php -i
```
Check installed PHP modules:
```
php -m
```

If the installation was successful, you should see PHP 8.2.x in the version output and the requested modules in the module list.