I've read instructions for setting up Drupal 7 and PHP 7 and I've got everything working except the debugging. I can't get the debugging working for custom modules.
My directory structure is:
In PhpStorm I choose:
1. "Web server is installed locally, source files are located under its document root."
2. I choose my project folder as: /Library/WebServer/Documents/drupal/sites/all/modules/MY_CUSTOM_MODULE