PHP Versions for Horde 6

Horde 6 requires PHP 8.1 or PHP 8.2 versions.
Support for PHP 8.3 is in development.

Ubuntu and Debian

Install following packages:


sudo apt-get install composer
sudo apt-get install php-xml
sudo apt-get install php-curl
sudo apt-get install php-ldap
sudo apt-get install php-bcmath
sudo apt-get install php-mysql

PHP Extensions

PHAR extension is required for composer and other utilities
gettext for localisation
intl
iconv
PDO and SQL Database extensions
curl for API requests

Depending on installed Horde applications and used backends, other extensions are required.
For a fairly complete reference, the groupware container image currently uses these PHP extensions:

php-apcu
php-bcmath
php-bz2
php-ctype
php-calendar
php-curl
php-dom
php-gd
php-iconv
php-imagick
php-intl
php-ldap
php-mbstring
php-mysql
php-opcache
php-pdo
php-phar
php-posix
php-redis
php-soap
php-sockets
php-sqlite3
php-tokenizer
php-xmlwriter
php-xmlreader
php-zip

Composer will tell user whenever a platform requirement is missing.