In openserver the code is not interpreted?

Question

open server

I work with openserver , the problem is this, when interpreting php code, there is a problem in which any browser used does not interpret the code, but only displays the code itself.
Tried to change domains, files, restart openserver.
Outcome: still gives out just a code (in text)

Answer 1

WELL, this usually happens if you just open the file with a browser, and do not call it via http://