Jun 19 2009 Programming

Have you ever come across a webpage with an image of some girl with some provocative nickname claiming to be from your city? Here's how that works.  

They use the GeoIP database.
Here's a PHP interface I made for it.
You can see it in action → here

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
<title>Location Lookups</title>
<meta name="keywords" content="'web 2.0' ">
<meta name="author" content="E. Dziewa">
<meta name="description" content="white page with dark letters">
<link rel="stylesheet" type="text/css" href="lookup.css">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<div style="width: 60%">

if ( (!$_POST) && (empty($_GET['l'])) ) $lookup = $_SERVER['REMOTE_ADDR'];
elseif ( !empty($_GET['l']) ) $lookup = $_GET['l'];
else $lookup = $_POST['lookup'];

$lookup = trim($lookup); // strip whitespace
if ( preg_match( '/dziewa/', $lookup ) ) {
    $lookup = 'passaic-city.k12.nj.us'; // resolves to passaic
    $flag = 1;
elseif (
    ( !preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/', $lookup ) ) &&
    ( !preg_match( '/^[A-Za-z0-9._-]+$/', $lookup ) ) ) {
        exit("We accept IP addresses, and domain names only.");
elseif ( preg_match( '/^192\.168\./', $lookup ) ) {
    if ( $_SERVER['REQUEST_METHOD'] != 'GET)
        exit("Sorry we don't look up private network addresses.");
    else {
        $flag = 1;
        $lookup = 'passaic-city.k12.nj.us'; // resolves to passaic
// replace the #'s with your own ip #'s
elseif ( preg_match( '/###\.###\.###\.###/', $lookup ) ) { // your own ip
    // replace with what you'd like to be looked up as
    $lookup = ''; // garfield
    $flag = 1;

if ($flag) { // looking for info on us
    if ( !empty($_POST['lookup']) ) {
        echo '
        <table width="100%" border="0"><tr><td class="black_head">
        <span class="header"> Results on '.$_POST['lookup'].'</span>
    elseif ( !empty($_GET['l']) ) {
        echo '
        <table width="100%" border="0"><tr><td class="black_head">
        <span class="header"> Results on '.$_GET['l'].'</span>
    else { 
        echo '
        <table width="100%" border="0"><tr><td class="black_head">
        <span class="header"> Results on '.$lookup.'</span>
else {
    echo '
    <table width="100%" border="0"><tr><td class="black_head">
    <span class="header"> Results on '.$lookup.'</span>
$types = array(
    'continent_code=> 'Continent',
    'country_name=> 'Country',
    'region'       => 'Region',
    'city'         => 'City',
    'postal_code'  => 'Postal Code',
    'area_code'        => 'Area Code',
    'longitude'        => 'Longitude',
    'latitude'     => 'Latitude'
$conts = array(
    'NA'   => 'North America',
    'EU'   => 'Europe',
    'SA'   => 'South America',
    'AS'   => 'Asia',
    'AF'   => 'Africa',
    'OC'   => 'Australia',
    'AN'   => 'Antarctica'

$rec = geoip_record_by_name("$lookup");
if ( empty($rec['continent_code']) ) echo "<br>No data found<br>";
else {
    echo "<table border=\"0\" width=\"80%\" style=\"margin-left: 40px\">\n";

    foreach ( $types as $testme => $title ) {
        if ( !empty($rec[$testme]) ) {
            if ( ($testme == 'continent_code') && ( !empty($conts[$rec[$testme]]) ) ) {
                echo "\t<tr><td class=\"desc\">$title</td><td class=\"desc\">".$conts[$rec[$testme]]."</td></tr>\n";
            else {
                echo "\t<tr><td class=\"desc\">$title</td><td class=\"desc\">$rec[$testme]</td></tr>\n";

    $a = geoip_time_zone_by_country_and_region($rec['country_code'], $rec['region']);
    if ($a) {
        echo "\t<tr><td class=\"desc\">Time Zone</td><td class=\"desc\">$a</td></tr>\n";

    $ourtime = date_default_timezone_get();
    $theirtime = date_default_timezone_set( $a );
    if ( $theirtime ) {
        echo "\t<tr><td class=\"desc\">Current Time</td><td class=\"desc\">".date('H:i')."</td></tr>\n";
        date_default_timezone_set( $ourtime );

    echo "</table><br>";

    <form action="lookup.php" method="post">
<table width="100%" border="0"><tr><td class="black_tail">&nbsp;
Lookup another:
    <input type="text" class="ff" name="lookup" size="20" maxlength="40">
            <input type="submit" class="butsty" name="submit" value="Go!">
</form></div><div style="font-size: 1px">
"This product includes GeoLite data created by MaxMind, available from http://www.maxmind.com/"

you can for instance append l= to the url for linking. One day I'm going to expand this to include some other location relevant information. Someone suggested google maps, I'm thinking weather, local news, time to get there from here.


Jun 23 2009
Comment #1 posted by Katy at 11:33 pm

Pretty nice post. I just found your blog and wanted to say
that I have really enjoyed browsing your blog posts. Anyway
I'll be subscribing to your blog and I hope you write again soon!

Mar 15 2010
Comment #2 posted by Abhijeet at 7:24 am

This is very nice. easy to understand and effective geo location tool. Thanks Eric :)

Dec 30 2010
Comment #3 posted by vivek at 1:46 am

this can be very useful script, thanks eric

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Nov 4 2015
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