Google geocoder v2 and v3 - google-maps-api-3

Question

Until recently I've been using google geocoding to provide coordinates to be saved in a database. However, when I recently tried to do this it failed, with error 610. I was still using v2 and I understand this is phasing out. So, I came on this website and had a look at this thread: Changing from Google maps api v2 to v3. I updated my code in line with the following (which I understand from the feedback worked) from this thread:
These are, changing the address for v3 geocoding
define("MAPS_HOST", "maps.googleapis.com");
$base_url = "http://" . MAPS_HOST . "/maps/api/geocode/xml?";
$request_url = $base_url . "address=" . urlencode($address) . "&sensor=false";
And secondly changing the path in the returned xml file for setting lat/long
$coordinates = $xml->Response->Placemark->Point->coordinates;
$coordinatesSplit = split(",", $coordinates);
// Format: Longitude, Latitude, Altitude
$lat = $coordinatesSplit[1];
$lng = $coordinatesSplit[0];
Can be completely replaced with
$lat = $xml->result->geometry->location->lat;
$lng = $xml->result->geometry->location->lng;
But still not working for me. I no longer get error 610 when I try to run it, just "failed to geocode, error code ".
Apologies I'm still relatively novice with this stuff, learning as I go really, so I appreciate any help you can give. It may be the simplest thing I'm missing. Here's my code currently:
<?php
require("phpsqlgeocode_dbinfo.php");
define("MAPS_HOST", "maps.googleapis.com");
define("KEY", *my key*);
// Opens a connection to a MySQL server
$connection = mysql_connect('*name*', $username, $password);
if (!$connection) {
die("Not connected : " . mysql_error());
}
// Set the active MySQL database
$db_selected = mysql_select_db($database, $connection);
if (!$db_selected) {
die("Can\'t use db : " . mysql_error());
}
// Select all the rows in the markers table
$query = "SELECT * FROM markers WHERE 1";
$result = mysql_query($query);
if (!$result) {
die("Invalid query: " . mysql_error());
}
// Initialize delay in geocode speed
$delay = 0;
$base_url = "http://" . MAPS_HOST . "/maps/api/geocode/xml?";
// Iterate through the rows, geocoding each address
while ($row = #mysql_fetch_assoc($result)) {
$geocode_pending = true;
while ($geocode_pending) {
$address = $row["address"];
$id = $row["id"];
$request_url = $base_url . "address=" . urlencode($address) . "&sensor=false";
$xml = simplexml_load_file($request_url) or die("url not loading");
$status = $xml->Response->Status->code;
if (strcmp($status, "200") == 0) {
// Successful geocode
$geocode_pending = false;
$lat = $xml->result->geometry->location->lat;
$lng = $xml->result->geometry->location->lng;
$query = sprintf("UPDATE markers " .
" SET lat = '%s', lng = '%s' " .
" WHERE id = '%s' LIMIT 1;",
mysql_real_escape_string($lat),
mysql_real_escape_string($lng),
mysql_real_escape_string($id));
$update_result = mysql_query($query);
if (!$update_result) {
die("Invalid query: " . mysql_error());
}
} else if (strcmp($status, "620") == 0) {
// sent geocodes too fast
$delay += 100000;
} else {
// failure to geocode
$geocode_pending = false;
echo "Address " . $address . " failed to geocoded. ";
echo "Received status " . $status . "
\n";
}
usleep($delay);
}
}
?>
Thanks so much!

Answer 1

This is what I did. I was having the same problem and now everything works perfectly.
<?php
$sql = "SELECT * FROM locations WHERE lat IS NULL AND lng IS NULL";
$res = mysql_query( $sql );
while( $row = mysql_fetch_assoc( $res ) ) {
$address = $row['address_1'] . ", " . $row['city'] . " " . $row['state'] . " " . $row['zip'];
$latlng = geocode( $address );
echo $address . "<br />";
if( $latlng[0] && $latlng[1] ) {
print_r( $latlng );
echo "<br />";
$update = "UPDATE locations SET lat = '" . $latlng[0] . "', lng = '" . $latlng[1] . "' WHERE id = " . $row['id'] . " LIMIT 1";
$update_res = mysql_query( $update );
echo $update . "<br />";
} else {
echo $latlng[2] . "<br />";
}
echo "<br />";
}
function geocode( $address ) {
if( empty( $address ) ) {
return array("", "", "");
}
$base_url = "http://maps.googleapis.com/maps/api/geocode/xml";
$request_url = $base_url . "?address=" . urlencode( $address ) . "&sensor=false" ;
$xml = simplexml_load_file( $request_url );
$status = $xml->status;
if (strcmp($status, "OK") == 0) {
$lat = $xml->result->geometry->location->lat;
$lng = $xml->result->geometry->location->lng;
return array( $lat, $lng, $request_url );
} else {
return array("", "", $request_url);
}
}
?>