<?php 
  $interval = 60 * 10;  //refresh interval(sec)
  $scriptUrl = 'http://server/location.cgi';  //this script url
  $subscriberId = NULL; //your subscriber id or NULL

  if (isset($subscriberId) && $subscriberId != $_SERVER['HTTP_X_UP_SUBNO']) {
    die('invalid subscriber-id');
  }

  $now = time();
  if (isset($_GET['lat'])) {
    $lat = $_GET['lat'];
    $lon = $_GET['lon'];

    // メールで送るなりファイルやDBに保存するなり
  }

  header('content-type: text/x-hdml;charset=shift_jis');
?>
<HDML VERSION=3.1 MARKABLE=TRUE TTL=0>
 <DISPLAY TIMERDEFAULT=<?php  echo $interval * 10 ?>>
 <ACTION TYPE=ONTIMER TASK=GO DEST="device:gpsone?url=<?php  echo $scriptUrl ?>&ver=1&datum=0&unit=0">
  NOW: <?php  echo date('Y-m-d H:i:s', $now); ?><BR>
  LAT: <?php  echo isset($lat) ? $lat : 'UNKNOWN' ?><BR>
  LON: <?php  echo isset($lon) ? $lon : 'UNKNOWN' ?><BR>
  <a href="device:gpsone?url=<?php  echo $scriptUrl ?>&ver=1&datum=0&unit=0">REFRESH!</a>
 </DISPLAY>
</HDML>