Google geocoding using v3 not showing error - google-maps-api-3

Question

Kindly help on the code below. What happens is that I get the latitude and longitude of the name of a place when I click on a button. However, of late, it is not working. It prints that "Address x failed to Geocode. Received status " Note that x is a given address and no status code is given.
$id=$_REQUEST['id'];
define("MAPS_HOST", "maps.googleapis.com");
define("KEY", "xxxxxxx");
$query = "SELECT * FROM markers WHERE mid = $id LIMIT 1";
$result = mysql_query($query);
if (!$result) {
die("Invalid query: " . mysql_error());
}
// Initialize delay in geocode speed
$delay = 0;
$base_url = "http://" . MAPS_HOST . "/maps/api/geocode/xml?address=";
if($row = #mysql_fetch_assoc($result)){
$geocode_pending = true;
$address = $row["address"];
while ($geocode_pending) {
$request_url = $base_url . urlencode($address) . "&sensor=false&key=" . KEY;
$xml = simplexml_load_file($request_url) or die("url not loading");
$status = $xml->Response->Status->code;
if (strcmp($status, "200") == 0) {
// Successful geocode
$geocode_pending = false;
$coordinates = $xml->Response->Placemark->Point->coordinates;
//$coordinatesSplit = split(",", $coordinates);
// Format: Longitude, Latitude, Altitude
//$lat = $coordinatesSplit[1];
//$lng = $coordinatesSplit[0];
list($lat,$lng) = explode(",",$coordinates);
$query = sprintf("UPDATE markers " .
" SET lat = '%s', lng = '%s' " .
" WHERE mid = '%s' LIMIT 1;",
mysql_real_escape_string($lng),
mysql_real_escape_string($lat),
mysql_real_escape_string($id));
$update_result = mysql_query($query);
if (!$update_result) {
die("Invalid query: " . mysql_error());
}else{
echo "$lat;$lng";
}
} else if (strcmp($status, "620") == 0) {
// sent geocodes too fast
$delay += 100000;
} else {
// failure to geocode
$geocode_pending = false;
echo "Address " . $address . " failed to geocode. ";
echo "Received status " . $status . "
\n";
}
usleep($delay);
}
}

Answer 1

I'm not sure on which API your code is based on, but the response of the current API will not work with these lines:
$status = $xml->Response->Status->code;
if (strcmp($status, "200") == 0) {
There are no elements Response,Status or code, furthermore the response will not contain a numeric status-code.
use this instead:
$status = $xml->status;
if (strcmp($status, "OK") == 0) {
To fix the rest of the code please take a look at the structure of the returned XML, there are also no elements Placemark,Point and coordinates.
it should be:
$lat = $xml->result->geometry->location->lat;
$lng = $xml->result->geometry->location->lng;