<?php

$start = microtime(true);

define('OUTPUT', dirname(__FILE__) . '/serverxml.xml');

$stat = @stat(OUTPUT);

header("Content-Type: application/xml");
if($stat === false || $stat['mtime'] + 60 < time())
{
  echo $feed = file_get_contents("http://grid.crazy-tronners.com/grid/serverxml.php");
  file_put_contents(OUTPUT, $feed);
  echo $feed;
}
else
{
  readfile(OUTPUT);
}

?>