sabre/vobject must be intalled using Composer.
|sabre/vobject version||PHP version|
Installing with composer
If Composer is not yet on your system, follow the instructions on
getcomposer.org to do so.
From your project directory, the easiest is then to simply call:
composer require sabre/vobject ~4.1
This rule ensures that you install the latest VObject package in the 3.4 range of packages, but it does not install 3.5 or higher, which could result in a backwards compatibility break.
After running this, sabre/vobject should be installed, and you can load it in by including the autoloader:
The sabre/vobject source can be found on GitHub.