Question

I have a table hotspots

id  name  date
1   foo   2011-06-15 15:10:34
2   bar   2011-07-02 16:45:18

And a table locations

hotspotid  zipcode  latitude  longitude
1          90001    xxxxx     xxxxx
2          45802    xxxxx     xxxxx

How can i list the hotspots nearby to a specific latitude and longitude with miles limit using an SQL query?

P.S. i’d like a pure SQL solution but php is ok if it’s needed.

Thanks

Answer 1

First you need a geographic location for each hotspot ideally using latitude and longitude. You can use the Google Geocoding API to go through each record and store lat/long.

Then you can match nearby hotspots with this SQL query and order by distance.

Hope that helps.