This project is an example of using the geoHash library. It will get useful information of a bunch of distributed geopoints saved on an elasticSearch instance.
You only need docker & docker-compose installed on your environment to get up the containers.
$ docker-compose up -d
$ docker exec fpm composer install
Navigate to your localhost (or docker-machine host) ip:80 to see the results. If have collition errors you can tweak the port forwarding in nginx service on docker-compose.yml Feel free to play with provided data and included map.