PHP in expert system coding?

Hurm,mostly expert system was develop with shell software ..then, if we develop expert system with php coding,it is difficult?it is any website properly prefer php in Artificial intelligen or expert system ??i already search in planet sourcode,about.com and many more,but i still can not find any example suitable for expert system and implementation …Help me please …
expert system is sub artificial intelligent..what i know is,developer develope expert system using like exsys corvid. Exsys corvid is one from many other shell software,where developer just need to input their knowledge and no need any extra knowledge about programming language. However, other developer also have using php to develop expert system. That why i want to find any reference for extra knowledge in php, for easy to me develop expert system in php language…any one know any information?and idea to develop expert system. especially in diagnose system..

Hey,

This doesn’t really make much sense? Could you try re-wording?