Curious : Why PHP can't handle long running processes ?
It absolutely can. I just think you gonna run into some memory leaks or other problems, I just don't trust PHP yet handling stable long running processes. But please correct if im wrong would love to read some experiences with that topic :)
After circular-reference cleanup has been implemented, php should work no different than any ohter GC language. I personally had some scrapers running for days with no issues.
why not php -S 127.0.0.1:8000 someentrypoint.php ?
Because I try to explain how a Webserver works for beginners. Building one in the language people are familier with is in my point of view the easiest way :)