Geographical coordinates to street names

is any way (with a rest API will be awesome) to get the Street name correspon开发者_JS百科ding to a Geographical coordinate? I think the name is geocoding, do google have this API? Im PHP developer.

Ex.

<?php 
cor="38.115583,13.37579";
echo(geoname(cor)); // this prints: Foro Umberto I - 90133 Palermo  
?>

So the output of the function is the street name, the postal code and the city. Thanks for any help and scripts examples!

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Yes, just use the "Reverse Geocoding" function in the Google Maps API: http://code.google.com/apis/maps/documentation/geocoding/#ReverseGeocoding

Here's some example code:

$lat="38.115583";
$long = "13.37579";

$url = "http://maps.googleapis.com/maps/api/geocode/json?latlng=$lat,$long&sensor=false";

$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_ENCODING, "");
$curlData = curl_exec($curl);
curl_close($curl);

$address = json_decode($curlData);
print_r($address);

---

Here's my PHP function I used for doing a Reverse Geocode lookup for a street address using the Google MAP API. Note, this example gets the output from Google in JSON, but I am doing a simple parse in PHP.

/*
 * Use Google Geocoding API to do a reverse address lookup from GPS coordinates
 */
function GetAddress( $lat, $lng )
{   
    // Construct the Google Geocode API call
    //
    $URL = "http://maps.googleapis.com/maps/api/geocode/json?latlng=${lat},${lng}&sensor=false";

    // Extract the location lat and lng values
    //
    $data = file( $URL );
    foreach ($data as $line_num => $line) 
    {
        if ( false != strstr( $line, "\"formatted_address\"" ) )
        {
            $addr = substr( trim( $line ), 22, -2 );
            break;
        }
    }

    return $addr;
}

Andrew Team at OpenGeoCode.Org

btw> Google does have restrictions on using their APIs for commercial purposes. Basically, you need to display the result on a google map.

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You could also take a look at using Yahoo!'s PlaceFinder API, which offers reverse geocoding. A minimal example of a call to the API (asking it to return the lightweight data-interchange format du jour, JSON) might look like:

$url      = 'http://where.yahooapis.com/geocode?location=55.948496,-3.198909&gflags=R&flags=J';
$response = json_decode(file_get_contents($url));
$location = $response->ResultSet->Results[0];
print_r($location);

Which outputs the first result (hopefully there is one!) which contains properties like street, postal and city.

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Another way of using the PlaceFinder API is through Yahoo!'s YQL API, which allows you to make use of SQL-like queries against "data tables" (often, other APIs).

Such a query might look like:

SELECT * FROM geo.placefinder WHERE text="55.948496,-3.198909" AND gflags="R"

(Try this in the YQL console interface)

To make a call to YQL with that query, from PHP, is very similar to the earlier example and should print the same information.

$query    = 'SELECT * FROM geo.placefinder WHERE text="55.948496,-3.198909" AND gflags="R"';
$url      = 'http://query.yahooapis.com/v1/public/yql?q='.urlencode($query).'&format=json';
$response = json_decode(file_get_contents($url));
$location = $response->query->results->Result;
print_r($location);

---

As @Elijah mentions, there's a lot of restrictions on the Maps API I gave in my last answer. You're only actually supposed to use it for Google Maps Applications. If that's a problem then you can also try the AdWords API. It also has a similar service but Google charges for it so there's less restriction.