IP info on your cellphone with Maxmind®

Background

This describes a little utility that I wrote in order to be able to get as much information as possible about an IP address using the MaxMind IP database residing on a server. It uses PHP as the scripting langauge.

Time for a short disclaimer..
.
The system I have built works fine for me - as always, your mileage may vary. There is no warranty with this product.

System Requirements

Fairly minimal:

1. A Linux box (or similar)..
2. PHP
3. The Maxmind IP database (free version)

Screenshots

Entering an IP address..

Typical results..

The code

<?php
header("Content-type: text/vnd.wap.wml");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
echo "<?xml version=\"1.0\"?>";
echo "<!DOCTYPE wml PUBLIC \"-//WAPFORUM//DTD WML 1.1//EN\""
        . " \"http://www.wapforum.org/DTD/wml_1.1.xml\">";
?>
<wml>
<template>
   <do type="prev" label="Previous">
      <prev/>
   </do>
</template>
<card id="card1" title=" - IP Information">
<p>
<?php
if ( isset ( $_REQUEST["IP"] ) && $_REQUEST["IP"] > '' )
   {
   $IP = $_REQUEST["IP"];
   include("geoip.inc");
   include("geoipcity.inc");
   $gi = geoip_open("/path/to/GeoLiteCity.dat",GEOIP_STANDARD);
   $record = geoip_record_by_addr($gi, $IP);
   geoip_close($gi);
   if ( $record )
      {
      print "Results for $IP<br/>";
      foreach ($record as $key => $value)
         {
         if (isset($value))
            {
            echo "<u><b>".ucfirst($key)."</b></u><br/>$value<br/>\n";
            }
         }
      print "<u><b>Hostname</b></u><br/>".gethostbyaddr($IP);
      }
   else
      {
      print '<pre>No data for that IP address</pre><p/>';
      }
   }
unset($IP);
unset($_REQUEST["IP"]);
?>
   <input title="IP" name="IP" size="9" maxlength="15" type="text" format="15m" emptyok="false" value="" />
   <anchor>
   Go<go href="<?php print $_SERVER['PHP_SELF']; ?>" method="post">
   <postfield name="IP" value="$(IP)" />
   </go>
   </anchor>
   <br/>
   <anchor>Main<go href="index.wml">
   </go>
   </anchor>
</p>
</card>
</wml>

Links

MaxMind GeoIP® Select the GeoLite (Free/Open Source) version