Zend Guard Loader is available on our servers. Please note that it supports only PHP 5.6 and PHP 5.3 which are in end-of-life status. You cannot use Zend Guard Loader for PHP 7.
To enable Zend Guard Loader for PHP 5.6, you need to add the following line of code to a PHP configuration file (php.ini) in your account:
zend_extension = /usr/local/Zend/ZendGuardLoader.so
If you are using PHP 5.3, you need to load the following extension in a PHP configuration file (php.ini) in your account to enable Zend Guard Loader:
zend_extension = /usr/local/Zend/ZendGuardLoader-5.3.so
You can learn more on how to change your PHP settings in our Changing PHP settings article.