GeoIP2-php/README.md

GeoIP2 PHP API

NOTE: This is an alpha release. The API may change before the final production release. The first production release will have the version number 2.0.0.

Description

Currently, this distribution provides an API for the [GeoIP2 web services] (http://dev.maxmind.com/geoip/geoip2/web-services).

In the future, this distribution will also provide the same API for the GeoIP2 downloadable databases. These databases have not yet been released as a downloadable product.

See GeoIP2\WebService\Client for details on the web service client API.

Installation

Define Your Dependencies

We recommend installing this package with Composer. To do this, add geoip2/geoip2 to your composer.json file.

{
    "require": {
        "geoip2/geoip2": "0.2.*"
    }
}

Install Composer

Run in your project root:

curl -s http://getcomposer.org/installer | php

Install Dependencies

Run in your project root:

php composer.phar install

Require Autoloader

You can autoload all dependencies by adding this to your code:

require 'vendor/autoload.php';

Usage

To use this API, you must create a new \GeoIP2\WebService\Client object with your $userId and $licenseKey, then you call the method corresponding to a specific end point, passing it the IP address you want to look up.

If the request succeeds, the method call will return a model class for the end point you called. This model in turn contains multiple record classes, each of which represents part of the data returned by the web service.

See the API documentation for more details.

Example

<?php
require_once 'vendor/autoload.php';
use \GeoIP2\WebService\Client;

$client = new Client(42, 'abcdef123456');
$omni = $client->omni('24.24.24.24');
echo $omni->country->isoCode;

Exceptions

For details on the possible errors returned by the web service itself, see the GeoIP2 web service docs.

If the web service returns an explicit error document, this is thrown as a \GeoIP2\Exception\WebServiceException. If some other sort of transport error occurs, this is thrown as a \GeoIP2\Exception\HttpException. The difference is that the web service error includes an error message and error code delivered by the web service. The latter is thrown when some sort of unanticipated error occurs, such as the web service returning a 500 or an invalid error document.

If the web service returns any status code besides 200, 4xx, or 5xx, this also becomes a \GeoIP2\Exception\HttpException.

Finally, if the web service returns a 200 but the body is invalid, the client throws a \GeoIP2\Exception\GeoIP2Exception.

What data is returned?

While many of the end points return the same basic records, the attributes which can be populated vary between end points. In addition, while an end point may offer a particular piece of data, MaxMind does not always have every piece of data for any given IP address.

Because of these factors, it is possible for any end point to return a record where some or all of the attributes are unpopulated.

See the GeoIP2 web service docs for details on what data each end point may return.

The only piece of data which is always returned is the ipAddress attribute in the GeoIP2\Record\Traits record.

Every record class attribute has a corresponding predicate method so you can check to see if the attribute is set.

Integration with GeoNames

GeoNames offers web services and downloadable databases with data on geographical features around the world, including populated places. They offer both free and paid premium data. Each feature is unique identified by a geonameId, which is an integer.

Many of the records returned by the GeoIP2 web services and databases include a geonameId property. This is the ID of a geographical feature (city, region, country, etc.) in the GeoNames database.

Some of the data that MaxMind provides is also sourced from GeoNames. We source things like place names, ISO codes, and other similar data from the GeoNames premium data set.

Reporting data problems

If the problem you find is that an IP address is incorrectly mapped, please submit your correction to MaxMind.

If you find some other sort of mistake, like an incorrect spelling, please check the GeoNames site first. Once you've searched for a place and found it on the GeoNames map view, there are a number of links you can use to correct data ("move", "edit", "alternate names", etc.). Once the correction is part of the GeoNames data set, it will be automatically incorporated into future MaxMind releases.

If you are a paying MaxMind customer and you're not sure where to submit a correction, please contact MaxMind support for help.

Other Support

Please report all issues with this code using the GitHub issue tracker.

If you are having an issue with a MaxMind service that is not specific to the client API, please see our support page.

Requirements

This code requires PHP 5.3 or greater. Older versions of PHP are not supported.

This library also relies on the Guzzle HTTP client.

Contributing

Patches and pull requests are encouraged. All code should follow the PSR-2 style guidelines. Please include unit tests whenever possible.

Versioning

The GeoIP2 PHP API uses Semantic Versioning.

Copyright and License

This software is Copyright (c) 2013 by MaxMind, Inc.

This is free software, licensed under the GNU Lesser General Public License version 2.1 or later.