How to make jetbrains idea highlight php and html code in *.html?

Question

IntelliJ IDEA

There are 2 types of files in one project, one is pure html code and the other is html with php inserts, both types have *.html extension
Question: How to make jetbrains idea highlight php and html code in *.html?
Or an option how you can quickly change the file type from HTML to PHP and vice versa.

Thanks in advance!

Answer 1

In the settings, set PHP highlighting instead of HTML for .html files

Answer 2

Addition to the answer, after reinstalling the PHP plugin everything worked: