Googlemaps and PHP

TheDigglerUK

Hi I have several bits of code in both PHP and Javascript but cant seem to get them to work together. What i need to be able to do is:-

1) The user enters either 2 full addresses with or without postcode.
2) This is then processed and the values change to the correct address that googlemaps generates (Gives postcode if none entered, etc)
3) The distance in miles by ROAD is then given.

I have the following code in Java that gets the full uk address when a partial address in entered. How do i change to perform this simple task in PHP?

Any help would be greatly appreciated.

Thanks

Jules

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Google Maps JavaScript API Example: Extraction of Geocoding Data</title>
<script src="http://maps.google.com/maps?file=api&v=2&key=AIzaSyANQSRMzl2jNUON2VbF24f5xuPm_YtH6l0" type="text/javascript"></script>

<script type="text/javascript">

var geocoder, location1, location2;

function initialize() {
	geocoder = new GClientGeocoder();
}

function showLocation() {
	geocoder.getLocations(document.forms[0].address1.value, function (response) {
		if (!response || response.Status.code != 200)
		{
			alert("Sorry, we were unable to geocode the first address");
		}
		else
		{
			location1 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
			geocoder.getLocations(document.forms[0].address2.value, function (response) {
				if (!response || response.Status.code != 200)
				{
					alert("Sorry, we were unable to geocode the second address");
				}
				else
				{
					location2 = {lat: response.Placemark[0].Point.coordinates[1], lon: response.Placemark[0].Point.coordinates[0], address: response.Placemark[0].address};
					calculateDistance();
				}
			});
		}
	});
}

function calculateDistance()
{
	try
	{
		var glatlng1 = new GLatLng(location1.lat, location1.lon);
		var glatlng2 = new GLatLng(location2.lat, location2.lon);
		var miledistance = glatlng1.distanceFrom(glatlng2, 3959).toFixed(1);
		var kmdistance = (miledistance * 1.609344).toFixed(1);

		document.getElementById('results').innerHTML = '<strong>Pickup: </strong>' + location1.address + '<br /><strong>Dropoff: </strong>' + location2.address + '<br /><strong>Distance: </strong>' + miledistance + ' miles (or ' + kmdistance + ' kilometers)';
	}
	catch (error)
	{
		alert(error);
	}
}

</script>

</head>

<form action="#" onsubmit="showLocation(); return false;">
  <p>
    <input type="text" name="address1" value="Address 1" class="address_input" size="40" />
    <input type="text" name="address2" value="Address 2" class="address_input" size="40" />
    <input type="submit" name="find" value="Search" />
    <? echo $miledistance ?>
  </p>
</form>
<p id="results"></p>

</body>
</html>