> It's true that the lack of multithreading in PHP has been a persistent pain.

No actually it's a joy to have no multithreading. It keeps the complexity budget lower. You can do multithreading through a custom PHP module if you had a very specific need. Maybe my requirements were too simple but I've never really felt the need. The shared nothing PHP architecture really helps you get away with this.

Anyways as the parent comment said:

> but if you're building microservices where parallelization is handled by an external orchestrator, then you can design around that pretty effectively.