248 lines
7.7 KiB
Markdown
248 lines
7.7 KiB
Markdown
# GeoIP2 PHP API #
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## Beta Note ##
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This is a beta release. The API may change before the first production
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release, which will be numbered 2.0.0.
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You may find information on the GeoIP2 beta release process on [our
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website](http://www.maxmind.com/en/geoip2_beta).
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## Description ##
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This distribution provides an API for the [GeoIP2 web services]
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(http://dev.maxmind.com/geoip/geoip2/web-services) and the [GeoLite2
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databases](http://dev.maxmind.com/geoip/geoip2/geolite2/). The commercial
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GeoIP2 databases have not yet been released as a downloadable product.
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## Installation ##
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### Define Your Dependencies ###
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We recommend installing this package with [Composer](http://getcomposer.org/).
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To do this, add `geoip2/geoip2` to your `composer.json` file.
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```json
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{
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"require": {
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"geoip2/geoip2": "0.5.*"
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}
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}
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```
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### Install Composer ###
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Run in your project root:
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```
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curl -s http://getcomposer.org/installer | php
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```
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### Install Dependencies ###
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Run in your project root:
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```
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php composer.phar install
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```
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### Require Autoloader ###
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You can autoload all dependencies by adding this to your code:
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```
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require 'vendor/autoload.php';
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```
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### Optional C Extension ###
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The [MaxMind DB API](https://github.com/maxmind/MaxMind-DB-Reader-php)
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includes an optional C extension that you may install to dramatically increase
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the performance of lookups in GeoIP2 or GeoLite2 databases. To install, please
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follow the instructions included with that API.
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The extension has no effect on web-service lookups.
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## Database Reader ##
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### Usage ###
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To use this API, you must create a new `\GeoIp2\Database\Reader` object with
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the path to the database file as the first argument to the constructor. You
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may then call the method corresponding to the database you are using.
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If the lookup succeeds, the method call will return a model class for the
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record in the database. This model in turn contains multiple container
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classes for the different parts of the data such as the city in which the
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IP address is located.
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If the record is not found, a `\GeoIp2\Exception\AddressNotFoundException`
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is returned. If the database is invalid or corrupt, a
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`\MaxMind\Db\InvalidDatabaseException` will be thrown.
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See the API documentation for more details.
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### Example ###
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```php
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<?php
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require_once 'vendor/autoload.php';
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use GeoIp2\Database\Reader;
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// This creates the Reader object, which should be reused across
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// lookups.
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$reader = new Reader('/usr/local/share/GeoIP/GeoIP2-City.mmdb');
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// Replace "city" with the appropriate method for your database, e.g.,
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// "country".
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$record = $reader->city('128.101.101.101');
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print($record->country->isoCode . "\n"); // 'US'
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print($record->country->name . "\n"); // 'United States'
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print($record->country->names['zh-CN'] . "\n"); // '美国'
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print($record->mostSpecificSubdivision->name . "\n"); // 'Minnesota'
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print($record->mostSpecificSubdivision->isoCode . "\n"); // 'MN'
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print($record->city->name . "\n"); // 'Minneapolis'
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print($record->postal->code . "\n"); // '55455'
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print($record->location->latitude . "\n"); // 44.9733
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print($record->location->longitude . "\n"); // -93.2323
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```
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## Web Service Client ##
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### Usage ###
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To use this API, you must create a new `\GeoIp2\WebService\Client`
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object with your `$userId` and `$licenseKey`, then you call the method
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corresponding to a specific end point, passing it the IP address you want to
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look up.
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If the request succeeds, the method call will return a model class for the end
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point you called. This model in turn contains multiple record classes, each of
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which represents part of the data returned by the web service.
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If there is an error, a structured exception is thrown.
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See the API documentation for more details.
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### Example ###
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```php
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<?php
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require_once 'vendor/autoload.php';
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use GeoIp2\WebService\Client;
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// This creates a Client object that can be reused across requests.
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// Replace "42" with your user ID and "license_key" with your license
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// key.
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$client = new Client(42, 'abcdef123456');
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// Replace "city" with the method corresponding to the web service that
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// you are using, e.g., "country", "cityIspOrg", "omni".
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$record = $client->city('128.101.101.101');
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print($record->country->isoCode . "\n"); // 'US'
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print($record->country->name . "\n"); // 'United States'
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print($record->country->names['zh-CN'] . "\n"); // '美国'
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print($record->mostSpecificSubdivision->name . "\n"); // 'Minnesota'
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print($record->mostSpecificSubdivision->isoCode . "\n"); // 'MN'
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print($record->city->name . "\n"); // 'Minneapolis'
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print($record->postal->code . "\n"); // '55455'
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print($record->location->latitude . "\n"); // 44.9733
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print($record->location->longitude . "\n"); // -93.2323
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```
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### What data is returned? ###
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While many of the end points return the same basic records, the attributes
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which can be populated vary between end points. In addition, while an end
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point may offer a particular piece of data, MaxMind does not always have every
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piece of data for any given IP address.
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Because of these factors, it is possible for any end point to return a record
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where some or all of the attributes are unpopulated.
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See the
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[GeoIP2 web service docs](http://dev.maxmind.com/geoip/geoip2/web-services)
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for details on what data each end point may return.
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The only piece of data which is always returned is the `ipAddress`
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attribute in the `GeoIp2\Record\Traits` record.
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Every record class attribute has a corresponding predicate method so you can
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check to see if the attribute is set.
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## Integration with GeoNames ##
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[GeoNames](http://www.geonames.org/) offers web services and downloadable
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databases with data on geographical features around the world, including
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populated places. They offer both free and paid premium data. Each
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feature is unique identified by a `geonameId`, which is an integer.
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Many of the records returned by the GeoIP2 web services and databases
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include a `geonameId` property. This is the ID of a geographical feature
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(city, region, country, etc.) in the GeoNames database.
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Some of the data that MaxMind provides is also sourced from GeoNames. We
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source things like place names, ISO codes, and other similar data from
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the GeoNames premium data set.
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## Reporting data problems ##
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If the problem you find is that an IP address is incorrectly mapped,
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please
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[submit your correction to MaxMind](http://www.maxmind.com/en/correction).
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If you find some other sort of mistake, like an incorrect spelling,
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please check the [GeoNames site](http://www.geonames.org/) first. Once
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you've searched for a place and found it on the GeoNames map view, there
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are a number of links you can use to correct data ("move", "edit",
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"alternate names", etc.). Once the correction is part of the GeoNames
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data set, it will be automatically incorporated into future MaxMind
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releases.
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If you are a paying MaxMind customer and you're not sure where to submit
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a correction, please
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[contact MaxMind support](http://www.maxmind.com/en/support) for help.
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## Other Support ##
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Please report all issues with this code using the
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[GitHub issue tracker](https://github.com/maxmind/GeoIP2-php/issues).
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If you are having an issue with a MaxMind service that is not specific
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to the client API, please see
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[our support page](http://www.maxmind.com/en/support).
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## Requirements ##
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This code requires PHP 5.3 or greater. Older versions of PHP are not
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supported.
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This library also relies on the [Guzzle HTTP client](http://guzzlephp.org/).
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## Contributing ##
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Patches and pull requests are encouraged. All code should follow the
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PSR-2 style guidelines. Please include unit tests whenever possible.
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## Versioning ##
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The GeoIP2 PHP API uses [Semantic Versioning](http://semver.org/).
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## Copyright and License ##
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This software is Copyright (c) 2013 by MaxMind, Inc.
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This is free software, licensed under the GNU Lesser General Public License
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version 2.1 or later.
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