PHP is still great for a lot of things, and as long as most hosting companies offer it pre-installed it will stay, even without WordPress. If I want to create

PHP is still great for a lot of things, and as long as most hosting companies offer it pre-installed it will stay, even without WordPress. If I want to create a quick script, I can just create a file directly on the server and see the result live, without having to compile anything or even restart the server. If I want to move it to a different server, I just copy-paste the contents of the file.