When I was asked to install Xdebug on my environment at work, I found multiple guides on the web. None of them were exactly what I needed.
At my workplace, we use PHPStorm as an IDE, and our local environment is Wamp (the headline says for dummies).

So, after scavenging information from multiple guides, I finally got it to work, and wrote it in a document for my teammates.

Lucky for you, I like to share!

Step by step:

1. Go to php.ini file, make sure that xdebug.remote_enable = 1.
   if you are not sure where is your php.ini file is, and you are using Wamp, you have shortcut from your taskbar:
   
   Then:
   

2. In PHPStorm, go to File | Settings | Languages & Frameworks | PHP and
   choose:

   • PHP level => 5.5 in my case. if you are not what is your PHP version, echo phpinfo().
   • CLI interpreter => add a new interpreter from a Local Path with the following definitions: If you are using Wamp, I assume you have that file in the Wamp folder like i did.

3. In File | Settings | Languages & Frameworks | PHP | Debug
   make sure the Xdebug definitions are as following:
   

4. Go to Run | Edit Configurations and add a new PHP Web Page
   configuration with the following definitions:
   

   • define a localhost server if needed
   • Start URL is the address of the page you would like to start the debugging.

5. Go to Run | Web Server Debug Validation and make sure the
   debugger is configured properly:
   

6. And finally, start debugging:

   • Press the Start Listening for PHP Debug Connections:
   • Press the Debug button, or Shift + F9

Happy Debugging!