PhpStorm 8 EAP is a new version of the popular IDE that many developers depend on to code more efficiently, debug applications, and run unit tests with integrated version control and command-line tools.
This new version has added official support for WordPress, .. adding some WordPress-specific development features. Please refer to a full tutorial on WP Development using PhpStorm to get an insight on how to get started with new features.
PhpStorm 8 EAP