PHP file returns blank when executed through CLI

Question

I am trying to learn WebRTC in php and have found an App in github: https://github.com/amirsanni/Video-Call-App

In order to run that app i have to run the server.php through command line. I am precisely following what the dev said i.e navigate to the directory and run php server.php however when i run it the CLI returns nothing. It looks something like this:

P.S: Things i tried till now:

• executing other php files returns atleast errors instead of forever blinking cursor.
• tried running from browser but no success, it keeps loading and shows blank.

Answer 1

Ok, I got it, that It wasn't supposed to be returning anything. Now the reason why I asked it doesn't return anything because when I run localhost:8000 it says 404 not found, so I thought maybe the server isn't running that's why it cannot find the file path.

So the problem was when I extracted the folder ( downloaded from the link in my question ) the folder name had a prefix with "-master" that's why it cannot find the path, removing it solved the problem.