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.