How to convert postcode to Geolocation (latitude & longitude) using google maps api?
You can do this using google map Geocoding API. Please find below example, but to correct latitude/longitude and address you need to pass full address along with zipcode.
For more detail please click on below link:
http://code.google.com/apis/maps/documentation/geocoding/
<?php$url ="http://maps.googleapis.com/maps/api/geocode/xml?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA&sensor=false";$result = simplexml_load_file($url);print"<pre>";print_r($result);?>