I am looking for a Php program/function which one could call to get all Zip codes within X miles of a given Zip code for the given country.
So for example one would call this function like
get_zip_codes_nearby($zipcode, $miles, $country);
And if one calls this function with for example;
$zipcode = 94109
$miles,= 25 Miles (meaning withitn 25 Miles of this Zip code)
$country = USA
Then one would get results like: