PHP Upgrade to 8.1

Update Packages

Warning

Please use the Sury repository to install the PHP packages.

View their README.txt to add the required repository to debian sources.

Update the apt pinning configuration /etc/apt/preferences.d/sury with following content:

Package: php5.6*, php7.0*, php7.1*, php7.2*, php7.3*, php7.4*, php8.0*, php8.2*
Pin: release *
Pin-Priority: -1

Now install the new php8.1 packages apt configuration install the php packages:

$ apt install libapache2-mod-php8.1 php-common php8.1 php8.1-bcmath \
  php8.1-bz2 php8.1-cli php8.1-common php8.1-curl php8.1-gd php8.1-igbinary \
  php8.1-imap php8.1-intl php8.1-ldap php8.1-mailparse \
  php8.1-mbstring php8.1-mysql php8.1-opcache php8.1-readline php8.1-soap \
  php8.1-ssh2 php8.1-tidy php8.1-xml php8.1-xmlrpc php8.1-zip

Update Configurations

PHP8.1

Copy php and opcache configuration from /etc/php/7.4/mods-available/ to /etc/php/8.1/mods-available/. The files typically called custom-php.ini and custom-opcache.ini.

After copying the configurations must be enabled again by typing phpenmod custom-php and phpenmod custom-opcache.

For full configuration see: PHP: Configuration

Disable default opcache configuration by typing phpdismod opcache.

Apache

Disable old php7.4 module, enable new php8.1 module and restart apache service.

a2dismod php7.4 && a2enmod php8.1

systemctl restart apache2.service

Verify php was successfully upgraded by typing php -v and check the output.

The output should look like:

PHP 8.1.18 (cli) (built: Apr 14 2023 04:39:46) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.1.18, Copyright (c) Zend Technologies
    with SourceGuardian v14.0.2, Copyright (c) 2000-2023, by SourceGuardian Ltd.
    with Zend OPcache v8.1.18, Copyright (c), by Zend Technologies

SourceGuardian Loader

Install SourceGuardian it will be used in the future instead of ionCube Loader.

Is responsible for the decryption and thus the runnability of CRM+. Available at:

Linux (x86-64) https://www.sourceguardian.com/loaders/download/loaders.linux-x86_64.tar.gz

wget --user-agent="Chrome/51.0.2704.103" https://www.sourceguardian.com/loaders/download/loaders.linux-x86_64.tar.gz

If the download link does not work anymore, you will also find the available packages via the main domain: https://www.sourceguardian.com/loaders.html

Unzip the downloaded package to /opt/thirdparty/sourceguardian.

Create the file /etc/php/8.1/mods-available/custom-sourceguardian.ini with following content, after creating the file enable the module by typing phpenmod custom-sourceguardian.

; Custom configuration for php8.1 module
; priority=00

zend_extension = /opt/thirdparty/sourceguardian/ixed.8.1.lin

Verify SourceGuardian was successfull installed by typing php -v and check for the SourceGuardian section.

For full configuration see: SourceGuardian Loader: Installation

Cleanup PHP7.4 Packages

After successfull installation the php7.4 packages can be purged.

apt remove --purge $(dpkg -l | grep php7.4 | awk '{ print $2 }')
apt autoremove
apt autoclean