Pierre-Alain Joye has posted a quick hit to his blog today about using one php.ini file for both a cli and cgi installation of PHP without it throwing errors for htscanner.

Htscanner reports error during module or request init (returns FAILURE), these errors may be fatal and stop the current executions. This behavior is not desired if you use it in a shell ((if you have only one system php.ini for both cli and cgi or if htscanner is compiled statically). This release brings a new ini settings to solve this problem, stop_on_error.

The solution involves changing the htscanner setting to 0 instead of 1 to return a "SUCCESS" message rather than the errors.