Nginx / php query string

Question

So i have a url like this to display images on some html this is how it works right now

subdomain.example.com/?img=foo.png

I was wondering if it was possible to hide the ?img= part of the url so the url would look something like this

subdomain.example.com/foo.png

And still make the page show the html and css i have in my code

Answer 1

Use rewrite:

rewrite ^/(.*) /?img=$1 last;