Things I like PHP for would be single file simple scripts which are part of otherwise essentially static sites. For instance, a static blog (with Jekyll/Pelican/whatever) but a single .php file which is for searches (in a sqlite FTS cache of the blog, say) or 'related posts' or whatever. Then you can upload it into an apache "standard" web host, and add that tiny bit of server-side stuff that otherwise would be a pain.