Nah, that's the one that's popular ("pleasant") to recognize.

If I had to hazard a guess, I'd imagine Dijkstra would have a word or two to say about callbacks, given his famously strong beliefs about GOTOs....

Is there some uncomfortable truth about PHP that's not being shouted from the rooftops in every thread about PHP? If so, what is it?

Perhaps "Nothing else solves the deployment problem as well as PHP did."

(No, not even "git push to deploy".)