Kdyby/ElasticSearch requires PHP 5.3.2 or higher.
The best way to install Kdyby/ElasticSearch is using Composer:
$ composer require kdyby/elastic-searchLearn more in the documentation.
Homepage http://www.kdyby.org and repository http://github.com/Kdyby/ElasticSearch.