Tools | Composer | Add Dependency
In this dialog box, appoint the packages to be added to the current project.
|Available packages||From this list, select the package that you need in your project. The list shows all the available packages, however, the packages that have been already installed are marked with a tick. Use the search field, if necessary: start typing the search string, as you type, the list dynamically reduces to show the packages that match the entered pattern. The Description read-only text box briefly explains the functionality of the selected package.|
|Version to install||From this drop-down list, select the package version. The contents of the list depend on the specific package.|
|Install||When you click this button, IntelliJ IDEA starts downloading the appointed package. When the process is completed, IntelliJ IDEA creates a new folder under the Vendor node stores the downloaded package in it, and adds the package to the list in the require section of Composer.json.|