PHP common components

Installs and configures PHP core and required components.

Default variables

---
php:
  version:
    - 8.1 # see https://www.php.net/supported-versions.php
  apt_signed_by: https://packages.sury.org/php/apt.gpg
  apt_origin: "origin=deb.sury.org,codename=${distro_codename}" # used by apt_unattended_upgrades