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Install PHP 8.0 on Debian 11

Warning! This PHP version is end-of-life!

PHP 8.0 reached end of life on 26 Nov 2023 and is no longer being updated. It's strongly recommended to upgrade to the latest version as soon as possible. You can read the official PHP migration guide here.

Installing PHP 8.0 on Debian 11

Prerequisites

  • Debian 11 (Bullseye) installed and updated
  • Root or sudo access to the system
  • Terminal access

Installation

  1. Update the package list:

    sudo apt update

  2. Install the required packages:

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

  3. 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

  4. Import the repository GPG key:

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

  5. Update the package list again:

    sudo apt update

  6. Install PHP 8.0 and common extensions:

    sudo apt install -y php8.0 php8.0-cli php8.0-common php8.0-curl php8.0-mbstring php8.0-mysql php8.0-xml

Verification

  1. Check the installed PHP version:

    php -v

    You should see output indicating PHP 8.0.x is installed.

  2. Verify PHP CLI is working:

    php -r "echo 'PHP is working!';"

    This should output: PHP is working!

  3. Check installed PHP modules:

    php -m

    This will list all installed PHP modules.