I am looking for a open-source expert system (hopefully php). I would like something analogous to a binary decision tree, or some kind of yes/no solution to solving problems
WOW, its gang up time! Look how many people jump up and wield there power and close the question down. I'm not sure how you got "this question will likely solicit debate, arguments, polling, or extended discussion" from "Does anything exist?" - he he he - i love coming to this forum and watch not only what you all just did, but when you all contest one another's answers to solutions. I wold much rather use Experts Exchange, but it cost money. So i just put up with you all