Geo-Targeting PHP Script

by on August 15, 2008

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I spent a few minutes with Dr_Ngo and Neil Turner at Affiliate Summit, and we were talking about geo-targeting users. Pretty powerful stuff, if your landing page can say, “Find singles in Buffalo, NY” or something similar (whatever your offer is about).

The easy (but ghetto) way to do this to put the city & state in the query string. So it’d be like page.php?city=Buffalo&state=NY. Then in your code, you just echo the city and state variables, like < ?= htmlentities(stripslashes($_GET['city'])) ? >. But what if you just want 1 landing page, without using the query string? It’s actually pretty simple, and I’m going to walk you though it.

So first, you need a database. Here’s a good free one. So from your ssh line, you’ll want to get this database by typing:
wget http://www.maxmind.com/download/geoip/database/GeoLiteCity.dat.gz

Cron this to run monthly (looks like they do updates on the 1st, so run your cron on the 5th or so) and then unzip it:
gunzip GeoLiteCity.dat.gz

OK, now you’re going to want to get the PHP module to use this data. From this directory, download

  • geoip.inc
  • geoipcity.inc
  • geoipregionvars.php

So in a single directory, you’ll have these 3 files and GeoLiteCity.dat. Now you’re about to see how unbelievably easy this script is:

include("geoip.inc");
include("geoipcity.inc");
include("geoipregionvars.php");

$gi = geoip_open("./GeoLiteCity.dat", GEOIP_STANDARD);

$rsGeoData = geoip_record_by_addr($gi, $_SERVER['REMOTE_ADDR']);

echo("<pre>");
print_r($rsGeoData);
echo("</pre>");

geoip_close($gi);

You’ll see I just do a print_r to show all the variables available to you, but for me, I see:

geoiprecord Object
(
[country_code] => US
[country_code3] => USA
[country_name] => United States
[region] => NY
[city] => Buffalo
[postal_code] => 14217
[latitude] => 42.9761
[longitude] => -78.8727
[area_code] => 716
[dma_code] => 514
)

So now your landing page will say,

Find singles in <?= htmlentities($rsGeoData->city . ", " . $rsGeoData->region) ?>

With the latitude & longitude, you can even show a map of the area using the Google Maps API. Having the Zip Code would be great for zip submit offers (only 2 1 left in 14217! – Enter your Zip Code to claim the prize!) or lots of other great ideas using a Zip Code database.

Beware of foreign IPs, though. If you’re not in the US, I don’t know what city or region will give back. You can replace $_SERVER['REMOTE_ADDR'] above with a known IP to see what it returns.

In case you were wondering, I started this installing this script at 3:40 and had it done at 3:50. It took me longer to write this blog post than it did to install the script, so don’t be afraid to try it yourself. If you have problems, though, just contact me.

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{ 49 comments… read them below or add one }

Ken Savage August 16, 2008 at 6:43 pm

You must have been thinking the same things I was last weekend. I’m doing the same thing the ghetto way now through my ppc stuff but I’m going to take you up on this script and try that out.

I am looking to show ads on organic results based on coutry IP later on too but this is a good start. Nice stuff Eric.

Reply

Neil August 20, 2008 at 1:16 pm

Nice! Thanks for script. The zip submit idea is great.

Reply

Dave August 29, 2008 at 12:26 am

Hey Eric good explanation … I’ve always wondered how to do this. Thanks!

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Kevin Carlson September 28, 2008 at 12:50 pm

Just FYI, some hosting providers have disabled the fopen() function used by geoip_open, for security reasons.
To make it work, the geoip.inc file would need to be rewritten to use the CURL library instead of fopen().

I’ve alerted Maxmind to this issue, hopefully they will update their API to address this…

Reply

Akram December 30, 2008 at 12:34 am

Hi,

My name is akram. I am software engineer and running my own company named ‘hive’.I am developing a website in which i want to get the country name object, I have redden your post and found very helpful but i could not access the country object please tell me how can i access and country object.

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Akram December 30, 2008 at 12:46 am

Thanks for your post it is very helpful for me and i get the answer “$rsGeoData->country_name”.

thanks,
akram.

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Eric December 30, 2008 at 8:22 am

As Akram said, $rsGeoData is an object, so you’d access the object variables with ->, like “$rsGeoData->country_name”

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garry egan January 11, 2009 at 10:35 am

That was an awesome post. Once I found out what this piece was ‘called’ (geotargeting), your site made it easy to deploy.

Way cool. I think this will most certainly increase conversions…

Reply

Al February 3, 2009 at 3:41 pm

Hey guys….i am an EXTREME newbie to this, but REALLY want to learn it. I did what you said with the three files and the database, and then copied the code intothe page like this:

include(“geoip.inc”;);
include(“geoipcity.inc”;);
include(“geoipregionvars.php”;);

$gi = geoip_open(“;http://www.hiringcontractorsnow.com/GeoT/GeoLiteCity.dat“;, GEOIP_STANDARD);

$rsGeoData = geoip_record_by_addr($gi, $_SERVER['REMOTE_ADDR']);

echo(“;”;);
print_r($rsGeoData);
echo(“;”;);

geoip_close($gi);

I then copied the bit of code for the city and state like this:

So now your landing page will say, “Find singles in city . “, ” . $rsGeoData->region) ? >”.

but i do not get anything that works.

Can oneof you folks give me a hand?

Thanks
AL
:)

Reply

Eric February 3, 2009 at 3:44 pm

Al – what does print_r($rsGeoData); give you?

Reply

Josh February 7, 2009 at 6:25 am

I’m a little confused – putting this directly onto a PHP page does not work?

include(”geoip.inc”);
include(”geoipcity.inc”);
include(”geoipregionvars.php”);

$gi = geoip_open(”./GeoLiteCity.dat”, GEOIP_STANDARD);

$rsGeoData = geoip_record_by_addr($gi, $_SERVER['REMOTE_ADDR']);

echo(””);
print_r($rsGeoData);
echo(””);

geoip_close($gi);

Reply

Kojak February 22, 2009 at 5:20 pm

Any demo that already running this geo targetted script?

Reply

Eric February 22, 2009 at 5:29 pm

I don’t have a demo (that I’m going to share), but basically any affiliate dating website will use this. After all, people only want to date others that live around them.

Reply

Kojak February 22, 2009 at 5:31 pm

Hi thanks for the reply eric. I just installed the database earlier which you can see here http://nurseownedbusiness.com/geo/test.php do you know how to change the country abbreviation into full country name? for example:

US change into United States

Kojak

Reply

Eric February 22, 2009 at 5:35 pm

Use country_name instead of country_code or country_code3.

Reply

Greg March 3, 2009 at 9:02 am

just curious – is there any other way to do this? just wondered if you had tinkered with any other methods(?)

btw, thank you / it works great

http://www.syrbot.com/tools/geoip/test.php

Reply

Eric March 3, 2009 at 9:18 am

Greg,

There’s a Javascript one out there somewhere, but they require a link back to their website. Sorry, but for the life of me, I can’t find it. Besides, you don’t want to link back to someone else :)

Reply

Greg March 3, 2009 at 2:46 pm

please let me know if you remember… i’ll be googl’ing too. thank you!

Reply

Cashtactics.net March 9, 2009 at 9:24 pm

Here is the a javascript version that takes directly from google.


<script type="text/javascript" src="http://www.google.com/jsapi"&gt; </script>
<script type="text/javascript">
if (typeof(google.loader.ClientLocation.address.city) != null) {
document.write(google.loader.ClientLocation.address.city
+", "
+google.loader.ClientLocation.address.region);
} else {
document.write("Unknown location")
}
</script>

Reply

Jerry McKinish May 7, 2009 at 2:48 pm

I inserted this into the head of my document.

Then I inserted this into the body of the document. Now My whole page is blank. Can you help?

<? $gi = geoip_open(“geo/./GeoLiteCity.dat”, GEOIP_STANDARD);

$rsGeoData = geoip_record_by_addr($gi, $_SERVER['REMOTE_ADDR']);

echo(””);
print_r($rsGeoData);
echo(””);

geoip_close($gi); ?>

city . “, ” . $rsGeoData->region) ? >

Reply

newbienoob May 14, 2009 at 8:52 pm

I enter in the following code to my header.php file. I’ve placed all four files into the same directory as my header.php file.

<?php
include(“geoip.inc”);
include(“geoipcity.inc”);
include(“geoipregionvars.php”);

$gi = geoip_open(“./GeoLiteCity.dat”, GEOIP_STANDARD);

$rsGeoData = geoip_record_by_addr($gi, $_SERVER['REMOTE_ADDR']);

echo(””);
print_r($rsGeoData);
echo(””);

geoip_close($gi);
?>

After placing this into my header and saving it my website shows me a blank page.

Any suggestions?

Reply

Eric May 15, 2009 at 7:44 am

Check your quotes – make sure you’re using " and not ”. Sorry, but WordPress puts “smart” quotes in my posts, which PHP does NOT like.

Reply

Stephane May 19, 2009 at 5:14 pm

Hi, this is nice ! My question is : would you know how to get the continent_code ?

Reply

Eric May 19, 2009 at 6:53 pm

@Stephane: – you’ll need an associative array and this data. So you’ll have:

$rsContinents['US'] = ‘NA’;
$rsContinents['TN'] = ‘AF’;

Then you’ll know that if I’m in the US, I’m in NA (North America) and if I’m in TN (Tunisia) I’m in AF (Africa)

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Stephane May 20, 2009 at 3:27 am

@Eric:
Ok, I see. But if you use Apache Module (mod_geoip), you can do :

apache_note(‘GEOIP_CONTINENT_CODE’)

I was hoping there was such a method like $rsGeoData->continent_code …

Reply

chris May 25, 2009 at 6:16 pm

CashTactics, your javascript works fine! In fact i had been looking for that kind of thing for ages. The method talked about in the post is probably easy too, but
I didn’t understand a thing. Copy&paste is all my lazy brain can do.

Reply

Mark Heppner July 12, 2009 at 12:28 pm

This is a great script! I am trying to use it to dynamically change the background and header on my website to match the time of day and weather of the user viewing it. To do this, I’m using XML data called from a weather API such as Yahoo, WeatherBug, or NOAA. However, no services let you call the data by the latitude and longitude. When I test your script, it does not throw back the zip code. It does work and it tells my correct location, but it is just blank for the zip. I need the zip codes to call the weather data! How did you get the zip code database to work? Is it included with the main database? Thanks for any help!

Reply

Jehzeel Laurente October 12, 2009 at 12:17 pm

this is exactly what I need for my US only campaigns. Thank you so much for sharing this! :)

Reply

Soufia February 7, 2010 at 6:57 pm

thank you / it works great

Reply

Carl March 5, 2010 at 1:09 pm

Thanks for the info, Eric! You made it really easy for a PHP newb like me to follow.

For those who aren’t very skilled with using SSH, this came in really handy for me – http://nevcal.com/eclectic/bluessh/bluehost-ssh.html

It’s specific to bluehost, but i’m sure can apply to any other hosting service as well.

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Joe April 27, 2010 at 3:58 pm

Hi all,

I want to know if it is possible to use the any of the (
[country_code] => US
[country_code3] => USA
[country_name] => United States
[region] => NY
[city] => Buffalo
[postal_code] => 14217
[latitude] => 42.9761
[longitude] => -78.8727
[area_code] => 716
[dma_code] => 514
)

in a mysql GET query?

e.g. SELECT *
FROM geobytes_countries
WHERE ISO3 = country (Param is $_rsGeoData['country_code3']) or something like?

Simply is there must be a $_GET['country_code3'] or $_SERVER['country_code3'] statement to get the variable detail in a RS.

Cheers,
Joe

Reply

Eric Nagel April 27, 2010 at 4:22 pm

Hi Joe – yes, simply:
SELECT * FROM geobytes_countries WHERE ISO3 = ‘$rsGeoData->country_code3′

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Chetan July 5, 2010 at 1:34 am

Can you pleas explain how to use this script on wordpress, I don’t understand much of the thing you explained above. Pleas explain with more details, I will be thankful to you.

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Eric Nagel July 5, 2010 at 10:56 am

@Chetan – use the Exec-PHP plugin for WordPress

Reply

qu August 24, 2010 at 7:01 pm

To those getting a blank screen when trying this script: try running: php -f in shell — this should give you some more useful info. in my case, i was missing the mbstrings php extension. fixed (on CentOS) with: “yum install php-mbstring” followed by http server restart.

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Evan September 29, 2010 at 9:00 pm

For those who are interested, I wrote a script (Lambda GeoIP) to do all the normal Geo-targeting stuff but also find the nearest major city to the user. Its helpful if you want the user to think you’re nearby but also make it believable.

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Joseph Gourvenec November 23, 2010 at 7:24 am

Hi Eric, Hope you’re well!

I was reviewing Maxmind and the GEO City Lite which says it does “MaxMind GeoLite City/ISP/Organization Edition Results” But I can seem to find the query strings for the ISP info, City, Etc?

I wondered if you could help me and knew what they were.

Cheers in advance,
Joe

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Eric Nagel November 23, 2010 at 8:55 am

Hi Joe – I think what you want is the GeoLite ASN database

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φωτοβολταικα April 17, 2011 at 12:47 pm

i was missing the mbstrings php extension. fixed (on CentOS) with: “yum install php-mbstring” followed by http server restart.

Reply

Greg Ricks June 27, 2011 at 7:01 pm

Thanks for this page. Helped a lot.

Reply

Anny October 17, 2011 at 9:17 am

Thank you for such useful information…

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Steve April 18, 2012 at 7:23 am

Great Script! I wanted to take it one stage further so that I can display the Subcountry codes but can’t seem to work it out!
Here is the info on MaxMind – http://www.maxmind.com/app/fips10_4
But can’t get it to work with your script… any ideas?

Reply

Eric Nagel April 18, 2012 at 8:45 am

When you do a print_r($rsGeoData); do you see Subcountry info?

Reply

Steve April 18, 2012 at 5:54 pm

No, that is the problem! can’t find out how to integrate the Subcountry info into the output
Should I simply replace the subcountry codes with the main .dat file?

Reply

Eric Nagel April 19, 2012 at 8:23 am

That may be it, Steve. My scripts use the “GeoLite City” database, so that’s all I’m familiar with.

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Steve April 20, 2012 at 10:22 am

ok thanks…
I’ve checked the fips dat file from maxmind and by comparing it to the results I get from your script I can see that
Example Data Results from your script
[country_code] => GB
[region] => M9
matches correctly with the fips data file
GB,M9,”Staffordshire”
Any idea how I could get this to display
I’m sure alot of your visitors would be interested as it allows for state/county anywhere not just UK

Thanks

Eric Nagel April 20, 2012 at 9:19 pm

Unfortunately, it’s not my script that reads the database, it’s from Maxmind.com.

Looking at that fips file, you’d have to loop through it and find the M9 line, then pull from that “Staffordshire”. The better way would be to store that in a database, so you can access it quicker. The “fips 10-4 region code” to “name” relationship is 1:1

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hitman April 19, 2012 at 8:07 am

is geoip_close necessary?

i have it in a foreach loop then use flush at the end.

any issues with not using geoip_close?

Reply

Eric Nagel April 19, 2012 at 8:20 am

Your open should be before the loop, and close after the loop. The only call within the loop is
$rsGeoData = geoip_record_by_addr($gi, $_SERVER['REMOTE_ADDR']);

(plus whatever you’re going to do with that data)

Reply

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