How to get the weather forecast using IP address

//includes the IP2Location framework
require_once('IP2Location.php');

//function that sends and retrieves an answer from a HTTP request
function SendRequest( $url, $method = 'GET', $data = array(), $headers = array('Content-type: application/x-www-form-urlencoded') )
{
   $context = stream_context_create(array
   (
      'http' => array(
         'method' => $method,
         'header' => $headers,
         'content' => http_build_query( $data )
      )
   ));

   return file_get_contents($url, false, $context);
}

//the client's IP
$ip = $_SERVER['REMOTE_ADDR'];
// Standard lookup with no cache
$loc = new IP2Location('databases/db24.bin');


$stationCode=FindIPWeatherStationCode($ip,$loc);
GetWeatherForecastFromYahoo($stationCode);