There are 2 posts in the Maps category:
Calculate the Distance Between Two Points in PHP
A simple, easy-to-understand PHP function that calculates the distance between two sets of latitude and longitude coordinates in miles, km, feet, and meters. » View Post
List of Latitudes and Longitudes for Every State
A list of the center latitude and longitude for all fifty of the United States (generated by taking the average latitude and longitude from each zip code within the state). In both HTML table and MySQL format. » View Post