The Zip webservice is project that allows someone
to deploy a Web service similar to del.icio.us,
Amazon, and Google using the nusoap SOAP library.
It was developed to expose a zipcode database
containing over 41,000 US zip codes.
Changes: This version moves the database connection code to
zipcodes_srv.inc.php, adds two new methods,
getZipsInRadius() and getTotalZips(), and adds a few other
minor tweaks.