SourceGuardian is commercial software which allows you to securely encode, compile and encrypt php scripts. In this way you will protect your source code from viewing and editing. You can lock your files based on the server IP where they will be opened, based on the domain name, the MAC address or a defined time period. In this way the files can not be used on a different computer, under a different domain or outside of a defined time interval.
In order to run php files encoded with SourceGuardian you need a SourceGuardian loader. On all Hostlantern shared servers the SourceGuardian loader is installed.
It is compiled for the following php versions: PHP 4.4, PHP 5.0, PHP 5.1, PHP 5.2, PHP 5.2 with Suhosin and PHP 5.3. If your php files are encrypted with SourceGuardian they will work flawlessly on the Hostlantern servers.