64Bit x86_64 Linux:

wget http://downloads3.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz
tar xfz ioncube_loaders_lin_x86-64.tar.gz

32Bit i386 Linux:

wget http://downloads3.ioncube.com/loader_downloads/ioncube_loaders_lin_x86.tar.gz
tar xfz ioncube_loaders_lin_x86.tar.gz

cp ioncube /usr/local/

ls /usr/local/ioncube

root@wheezy:/usr/local# ls /usr/local/ioncube
ioncube_loader_lin_4.1.so ioncube_loader_lin_5.4_ts.so
ioncube_loader_lin_4.2.so ioncube_loader_lin_5.5.so
ioncube_loader_lin_4.3.so ioncube_loader_lin_5.5_ts.so
ioncube_loader_lin_4.3_ts.so ioncube_loader_lin_5.6.so
ioncube_loader_lin_4.4.so ioncube_loader_lin_5.6_ts.so
ioncube_loader_lin_4.4_ts.so ioncube_loader_lin_7.0.so
ioncube_loader_lin_5.0.so ioncube_loader_lin_7.0_ts.so
ioncube_loader_lin_5.0_ts.so ioncube_loader_lin_7.1.so
ioncube_loader_lin_5.1.so ioncube_loader_lin_7.1_ts.so
ioncube_loader_lin_5.1_ts.so LICENSE.txt
ioncube_loader_lin_5.2.so loader-wizard.php
ioncube_loader_lin_5.2_ts.so README.txt
ioncube_loader_lin_5.3.so USER-GUIDE.pdf
ioncube_loader_lin_5.3_ts.so USER-GUIDE.txt
ioncube_loader_lin_5.4.so

php -v

PHP 5.6.31-1~dotdeb+7.1 (cli) (built: Jul 11 2017 06:53:16)
Copyright (c) 1997-2016 The PHP Group

wersja php to 5.6 ioncube powinien byc 5.6 => ioncube_loader_lin_5.6.so

vim /etc/php5/apache2/php.ini

vim /etc/php5/cli/php.ini

na początku pliku dodać:

zend_extension = /usr/local/php5/ioncube/ioncube_loader_lin_5.6.so