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<?php
/**
* Functions for netgeo lookups.
* @package mirror
* @subpackage lib
*/
/**
* Calculate the distance between two geo points.
* @param int $lat1 latitude of first point
* @param int $lon1 longitude of first point
* @param int $lat2 latitude of second point
* @param int $lon2 longitude of second point
* @return int $distance rounded distance in _km_ between these points
*/
function geo_get_distance($lat1,$lon1,$lat2,$lon2)
{
return null;
}
/**
* Query NetGeo based on API and parse results.
* @param string $ip an IP address
* @param string $method lookup method, based on NetGeo API.
* @return array|false array containing results or false on failure
*/
function geo_query($ip,$method='getRecord')
{
$raw = strip_tags(file_get_contents(GEO_URL.'?target='.$ip.'&method='.$method));
$lines = array_slice(explode("\n",$raw),5);
array_pop($lines);
foreach ($lines as $row)
{
$buf = preg_split('/:\s*/',$row);
$data[$buf[0]] = $buf[1];
}
return $data;
}
/**
* Get longitude and latitude of an IP.
* @param string $ip an IP address
* @return array|false array containing results or false on failure
*/
function geo_get_coordinates($ip)
{
return ($data = geo_query($ip,'getLatLong'))?array('lat'=>$data['LAT'],'long'=>$data['LONG']):false;
}
/**
* Get complete record based on IP.
* @param string $ip an IP address
* @return array|false array containing results or false on failure
*/
function geo_get_record($ip)
{
return ($data = geo_query($ip,'getRecord'))?$data:false;
}
/**
* Get country of an IP.
* @param string $ip an IP address
* @return string|false array containing results or false on failure
*/
function geo_get_country($ip)
{
return ($data = geo_query($ip,'getCountry'))?$data['COUNTRY']:false;
}
?>
|
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