I first came across the concept of a Promise about 3 years ago. At the time I was working with jQuery and was rather put off by the concept. It wasn’t that it wasn’t useful, I just didn’t understand it. Then, about a year ago the concept finally “clicked”… I refactored some existing applications and the reduction in code and simplicity of it all was breathtaking. But I never really appreciated the true power until I used them in PHP…