Execute only SourceGuardian protected scripts

It's possible to setup PHP to execute only SourceGuardian protected scripts. The SourceGuardian loader should be installed *server-wide* in php.ini and then the following option is set in php.ini:

[SourceGuardian]

sourceguardian.restrict_unencoded = "1"

If an unencoded script is executed the following error message appears:

Fatal error: SourceGuardian Loader - unencoded script cannot be executed [08]