Get IP From httpbin

<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>title</title>
  </head>
  <body>
    <?php
        $data = file_get_contents('http://httpbin.org/ip');
        if (preg_match('/\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}/', $data, $ip_match)) {
        echo "<h1>IP Address: $ip_match[0]</h1>";
}
    ?>
  </body>
</html>