Question

I’ve been working on an app which basically will send current location to a web server and the web server will do stuff based on that geolocation.

The main task of the webserver is to find sender’s friends, who’re around the area the sender is in (around the current geolocation of the sender).

I have been thinking about a GIS which solves this problem, but many times it seems pretty vague.

Any pointers to any already existing Open Source implementations of such GIS or to a way to create one from scratch using LAMP would be very helpful.

Sorry if this isn’t a right place for this kind of question.

Answer 1

Have a look at Postgis, a postgres project.

Start reading here:

http://postgis.refractions.net/documentation/

Hope that helps.