Skip to main content

IP to ISP/Country/City (GeoIP) using PHP

I've noted that many people are searching here about how to find out City/Country/ISP details from IP; often referred as GeoIP. Here, I've compiled my replies that once I posted to comp.lang.php


  1. Get the IP

  2. Refer http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xml and see which whois server should be used for the whois lookup

  3. Now, do the whois lookup. e.g., whois -h whois.apnic.net 61.x.x.x

  4. Parse the results. AFAIK, it will have the ISP, City and Country info



For whois lookup, may use rwhois protocol through below PHP code:



<?php
function whois($host, $command)
{
  $fp = fsockopen ($host, 43, $errno, $errstr, 100);
  if (!$fp) {
     $result = $errstr . $errno . "\n";
  } else {
    fputs ($fp, $command . "\r\n\r\n");
    $result = '';
    while (!feof($fp)) {
      $result .= fgets ($fp, 128);
    }
    fclose ($fp);
  }
  return $result;
}

//debug...
echo whois('whois.internic.net', 'php.net');
?>



Related links


Labels:

Comments

Post a Comment

Popular posts from this blog

Work avoiders on the rise

roughly 80% of the effects come from 20% of the causes --  80–20 rule / Pareto principle One popular store (that is known for its less selling price, 6-storied air-conditioned showroom) is situated to close to our home. But, Heleena is allergic to it. Reason? Even though there are at least 50 sales people per floor, only 1 or 2 people will be working and responding to the customers' queries. In another shop, I even noticed that the owner was serving customer when many staffs were cleverly avoiding the show! I'm finding the same problem everywhere. Who're affected here? Obviously the people who're actually working--they will have to handle more work that the clever people have avoided. Two common gestures/characteristics I have noted in these clever people: 1. They'll pretend to be absolute ignorant (These people's agenda are merely to avoid works, but not to take credits.), 2. They'll create politics on anything (These people's agenda ar...
Post a Comment
Read more

HRM systems diagnostic checklists

For last couple of days, I have tried to get overall idea about appraisal system in other companies and materials about appraisals. While checking, I came across an interesting checklist and warning indicators : Your organization is more than likely in trouble if any of the following holds true: chronic industrial relations problems no means of resolving employee grievances increasing / erratic employee turnover increasing number of customer complaints no pride in the organization inter-group conflicts no career paths for ambitious talented employees dissatisfaction with pay and conditions unclear job roles no clear performance measures quality is unimportant bad product service / delivery records poor recruitment standards / practices no management development programs no induction training for new employees critical skill shortages inter-departmental conflict you do not know if any of the above are applicable you ignore any of the above
Post a Comment
Read more

Zac Brown Band rocks...

When I was doing UG, my super-senior friend Ronald introduced me to MLTR and I was totally taken away by the music then. About 15-years later, I'm feeling same ecstasy when listening to Zac Brown Band 's Whatever It Is and Highway 20 Ride . The voice and music are amazingly cool.
Post a Comment
Read more