Trying to Setup a PHP project

I have been using IntelliJ IDEA for many years for Java development.  I am now trying to use version 10 to set up a PHP project.  Here is what I did:

Select "New Project"
Pick "Create project from scratch"
Did not select "Create module"
Select "Finish"

I also configured PHP parameters in the Project Settings.

However, IDEA doesn't show subdirectories or files under those subdirectories in the Project panel.  Did I do something wrong?  Or am I missing something?

Thanks much
Ben