PEAR_Debug?

Hi, is there something like a PEAR_Debug class/method available, similar to PEAR_Error? The difference would be that PEAR_Error is only called when errors occure while PEAR_Debug provides debugging information to developers or users of a package (what would be different to PEAR_Error::getDebugInfo(), wouldn't it?) to trace the behaviour of package routines. For example, PEAR::SOAP can be run in debug mode and has its own debug routines implemented. I haven't found a general PEAR_Debug class yet. The purpose of this class would be, to write debug information to several outputs like error_log file, stdout, email, etc. This could be implemented along the PEAR_Error API, e.g. PEAR::setDebugHandling() <-> PEAR::setErrorHandling() . Sandro