Installation
Laravel Idea is a plugin for PhpStorm. It can be installed in the Plugins settings. In the PhpStorm's main menu: File | Settings (or Preferences) | Plugins | Marketplace | Search "Laravel Idea"
By default, plugin tries to find laravel/framework (or laravel/lumen-framework, or illuminate/support, or laravel-zero/laravel-zero) Composer package installed. All plugin features work only if one of these packages found, so it won't take resources and make additional indexing for non-laravel projects. This can be configured in the settings:
Laravel directory option can help in cases when laravel installation is not in the root. Also, plugin can be turned on/off manually.