Python was started from the educational side of computer science. As such its core concepts and architecture are solid. PHP was started more as a quick hack by

Python was started from the educational side of computer science. As such its core concepts and architecture are solid. PHP was started more as a quick hack by a single developer just playing around. More and more stuff got tacked on and the result was a steaming mess. It's been busy fixing its conceptual mistakes since version 3/4.