use google API
$lat="54.1456123";
$long = "10.413456";
$url = "http://maps.googleapis.com/maps/api/geocode/json?latlng=$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);