Get City from IP Address Using ipgpnet

Using an API from http://www.ipgp.net/ this snippet demonstrates getting a city from an IP address pass the IP address in a var called $ip and the API key in a var called $apikey.

If the session has not been created then a lookup is done and the city is added to a session.

//lookup ip address for city
if(!isset($_SESSION[\'lookedupCity\'])){
	$ip = $_SERVER[\'REMOTE_ADDR\'];
	$string = file_get_contents(\"http://www.ipgp.net/api/xml/$ip/$apikey\");
	$xml = new SimpleXMLElement($string);
	$_SESSION[\'lookedupCity\'] = (string)$xml->City;
}
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