is it possible to convert (in PHP back-end):
to
Yes you can. You would do a request with file_get_contents or curl to a url like this:
http://maps.googleapis.com/maps/api/geocode/json?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA&sensor=false
What is returned is a json encoded response. You can parse this into arrays using json_decode.
The documentation page has an example of the what the response may look like, use that to find the data that you need.