find ip via php

findmyip.php

<?php
// Uses third party site ipnr.dk, thanks a lot
if (isset($_SERVER["SERVER_ADDR"])) echo "Local Address: ".$_SERVER["SERVER_ADDR"]."<br/>\nRemote: ";
if (extension_loaded('curl')) {
	$c = curl_init('http://ipnr.dk/');
	curl_setopt($c,CURLOPT_USERAGENT,'curl/0 (PHP) libcurl/0');
	curl_exec($c);
} else {
	echo "no cURL extension\n";
}
if (extension_loaded('http')) {
	$req = new HttpRequest('http://ipnr.dk/',HTTP_METH_GET,array('useragent'=>'curl/0 (PHP) libcurl/0'));
	$req->send();
	echo $req->getResponseBody();
} else {
	echo "no http extension\n";
}
if (ini_get('allow_url_fopen') == true) {
	ini_set('user_agent','curl/0 (PHP) libcurl/0');
	echo file_get_contents('http://ipnr.dk/');
} else {
	echo "no url fopen\n";
}