Upgrading Ioncube

To upgrade Ioncube to latest version you need to start by identifying the php version you are running:

# php -v
PHP 5.5.38 (cli) (built: Jul 21 2016 12:51:12) 
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies
    with the ionCube PHP Loader (enabled) + Intrusion Protection from ioncube24.com (unconfigured) v5.0.20, Copyright (c) 2002-2016, by ionCube Ltd.

In this case, the PHP 5.5 is running with a IonCube 5.0.20. Please note you need at least version 10 to run the web interface. To upgrade

cd /usr/local/src
wget https://downloads.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz
tar xzvf ioncube_loaders_lin_x86-64.tar.gz
\cp ioncube/ioncube_loader_lin_5.5.so /usr/lib64/php/modules/

In case you are running a different PHP version, you need to copy the correct ioncube version.