PHP Inside JS/HTML/Etc. Files

A new existing project I'm working on pipes all of their JS, HTML, etc. files through PHP for parsing. Thus, there's PHP inside of these files. Is there an easy way to get PhpStorm to recognize the PHP inside these files without reassociating the file types? Reassociating HTML is fine, but reassociating JS files causes only the PHP to be recognized and not the JS.

My guess is that the answer is I'm stuck, but I hope not. Thanks for the help.