PHP is horrible as a language, but it fills its niche very well:
* You can get it to run dang near anywhere.
* It has an extremely low barrier to entry for new devs (blessing and a curse).
* There's a large volume of code already out there.
* If you need something that's a little more than a static site but not a full blown custom system, it's one of the simplest ways to get something out the door.
* If you know how to use it, there's likely someone willing to pay you to do so on their behalf.
So yeah, PHP is still a thing.