Open Source is one of the core tenets of the PHP language and the community. PHP would not be here if it was not for some of the ideals around software development that occurred in the 50’s, 60’s, and 70’s. How did the open source movement start, and why is PHP one of the few languages that still hold true to those early days of programming? Let’s talk about where open source started, find out how we got here, and where we are going in the future.