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Get Geo-IP Information

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Requests a geo-IP-server to check, returns where an IP is located (host, state, country, town).

       //Array ( [domain] => [country] => DE - Germany [state] => Hessen [town] => Erzhausen )

       //Get an array with geoip-infodata
       function geoCheckIP($ip)
               //check, if the provided ip is valid
               if(!filter_var($ip, FILTER_VALIDATE_IP))
                       throw new InvalidArgumentException("IP is not valid");

               //contact ip-server
               if (empty($response))
                       throw new InvalidArgumentException("Error contacting Geo-IP-Server");

               //Array containing all regex-patterns necessary to extract ip-geoinfo from page
               $patterns["domain"] = '#Domain: (.*?)&nbsp;#i';
               $patterns["country"] = '#Country: (.*?)&nbsp;#i';
               $patterns["state"] = '#State/Region: (.*?)<br#i';
               $patterns["town"] = '#City: (.*?)<br#i';

               //Array where results will be stored

               //check response from ipserver for above patterns
               foreach ($patterns as $key => $pattern)
                       //store the result in array
                       $ipInfo[$key] = preg_match($pattern,$response,$value) && !empty($value[1]) ? $value[1] : 'not found';

               return $ipInfo;



  1. David
    Permalink to comment#

    You should consider caching results too as it will speed it up considerably.
    For small low traffic websites it won’t be too bad but if your expecting to grow it’s something you must look into now. You should also consider that you are relying on the website being up and returning data in a specific way so the regexes could become outdated or broken in the future.
    Just some things to consider.

  2. Andrew Champ
    Permalink to comment#

    I really needed this, thanks!

  3. Mathew
    Permalink to comment#

    What would be the best method of getting the users IP address to use with this?

    • Brian
      Permalink to comment#


      So, you could call the function like this:


  4. Neil Trigger
    Permalink to comment#

    I wish I had seen this about 6 months ago… it works brilliantly! I’m going to put it to work on loads of websites right now!

  5. Neil Trigger
    Permalink to comment#

    I have been playing and thought this might be useful too… it allows you to redirect or echo a silly statement depending on the user’s location:


    foreach ($my_array as $key => $value){
    #switch on the country:
    switch ($value) {
    case 'GB - United Kingdom':
    echo "You are visiting from the UK! We love the british!";
    case 'NZ - New Zealand':
    echo "You're visiting from New Zealand. What's the weather like down under?";
    case 'US - United States':
    echo "You're visiting from The USA. It must be nice to be in the home of the brave. I'd love to go, but I'm too scared!";
    case 'CA - Canada':
    echo "You're visiting from Canada. Is it snowing?";
    case 'AU - Australia':
    echo "You're visiting from Australia. Does the blood rush to your head?";
    echo '
    '.$key.': '.$value;


  6. ryan
    Permalink to comment#

    cool – im needing this so that certain states except nebraska can only see some pages.
    what would the entire script look like in this case?

    if your in nebraska – it redirects to URL A
    if outside nebraska – it redirects to URL B

    thanks – ryan

  7. Matalin
    Permalink to comment#

    Hi All,

    This is the first part of a formula to get the region automatically from ip.

    In my wufoo form I currently have a region dropdown that is required. Would we be able to use a version of this, possibly with url modifications to dump the region response into hidden wufoo fields?



  8. Anthony
    Permalink to comment#

    Thanks great share i needed this will be very helpful for detecting my users real IP an location because for the past few days i am being faced with some spammers.

    • Quentin
      Permalink to comment#

      Why you put their adress on this site if they’re spammers ?
      If you’re a developer you should know you’re doing them some backlinking here that’s really not clever …

  9. Danny
    Permalink to comment#

    tidy and functional ….any know how to use this to display post based on user location? example: an event listing site displaying events in user’s location.

  10. Grahame
    Permalink to comment#

    This is pretty cool, but I don’t think I’ll ever use it on a production server because of the reliance on a third party. What happens if shuts down all of a sudden?

  11. Kedar
    Permalink to comment#

    Hi dude, I want to create my own url shorning service.How to do that?

  12. Savion
    Permalink to comment#

    Hi, the state pattern is throwing me a “not found” error. Please help…

  13. Vancouver
    Permalink to comment#

    I too have experienced the “not found” attribute when making websites using WordPress platform.

  14. jasmeet
    Permalink to comment#

    Array ( [domain] => localhost [country] => – [state] => not found [town] => not found )
    any help???

    • boed
      Permalink to comment#

      hey, dont use this code from localhost…
      he write $ip with static number no $ip=$_SERVER[‘REMOTE_ADDR’];
      because not working from there

  15. jasmeet
    Permalink to comment#


  16. Alberto Mota
    Permalink to comment#

    Nice, we’ve been using something similar as well.. for all of those concerned about relying on a 3rd party web service, think the key thing is to keep it detached from any service in particular, so you can easily switch to a different one if needed; this Drupal module does that really nicely for instance:‎

  17. mfnstatus
    Permalink to comment#

    Thanks great share i needed this will be very helpful for detecting my users real IP an location because for the past few days i am being faced with some spammers.

  18. Gabriel
    Permalink to comment# is much more exact. And it’s very simple to use with PHP or AJAX.

    Have a look at the developer-info:

  19. Grig
    Permalink to comment#

    function getRealIpAddr()
    if (!empty($_SERVER[‘HTTP_CLIENT_IP’])) //check ip from share internet
    elseif (!empty($_SERVER[‘HTTP_X_FORWARDED_FOR’])) //to check ip is pass from proxy
    return $ip;

  20. Grig
    Permalink to comment#

    function get_ip_address() {
    // check for shared internet/ISP IP
    if (!empty($_SERVER[‘HTTP_CLIENT_IP’]) && validate_ip($_SERVER[‘HTTP_CLIENT_IP’])) {
    return $_SERVER[‘HTTP_CLIENT_IP’];

    // check for IPs passing through proxies
    if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
        // check if multiple ips exist in var
        if (strpos($_SERVER['HTTP_X_FORWARDED_FOR'], ',') !== false) {
            $iplist = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
            foreach ($iplist as $ip) {
                if (validate_ip($ip))
                    return $ip;
        } else {
            if (validate_ip($_SERVER['HTTP_X_FORWARDED_FOR']))
                return $_SERVER['HTTP_X_FORWARDED_FOR'];
    if (!empty($_SERVER['HTTP_X_FORWARDED']) && validate_ip($_SERVER['HTTP_X_FORWARDED']))
        return $_SERVER['HTTP_X_FORWARDED'];
    if (!empty($_SERVER['HTTP_X_CLUSTER_CLIENT_IP']) && validate_ip($_SERVER['HTTP_X_CLUSTER_CLIENT_IP']))
        return $_SERVER['HTTP_X_CLUSTER_CLIENT_IP'];
    if (!empty($_SERVER['HTTP_FORWARDED_FOR']) && validate_ip($_SERVER['HTTP_FORWARDED_FOR']))
        return $_SERVER['HTTP_FORWARDED_FOR'];
    if (!empty($_SERVER['HTTP_FORWARDED']) && validate_ip($_SERVER['HTTP_FORWARDED']))
        return $_SERVER['HTTP_FORWARDED'];
    // return unreliable ip since all else failed
    return $_SERVER['REMOTE_ADDR'];


  21. Grig
    Permalink to comment#

    function validate_ip($ip)
    return false;
    return true;

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