I've used PHP for a while now. PHP is a language that favors practicality. It's a language that is depended on throughout the world and doesn't (purposely) change as fast to accommodate new trends
Having that said
- The value of machine learning has become very clear over the past decade or so
- 80% of websites on the web are powered by PHP
https://haydenjames.io/80-percent-web-powered-by-php/
I undoubtedly anticipate a steady rise in effort from the PHP community directed at practical applications of ML - Rubix ML being one of the first libraries to make these tools accessible to the PHP engineer