Drupal v8 and later is based on a number of Symfony2 framework components. There is a Drupal plugin built into PhpStorm with Drupal 8 general support (hooks, drush, etc.), but PhpStorm has excellent support for Symfony2 framework as well through its core features and the Symfony2 Plugin (an Open Source plugin maintained by Daniel Espendiller).
To take advantages of close integration between Drupa