#Geocoding for Kohana 3.x

This is a Geocoding module adapted from Gogeocode. It currently supports Google and Yahoo's Geocoding APIs.

##Get an API Key

• Google: http://code.google.com/apis/maps/signup.html
• Yahoo: http://developer.yahoo.com/maps/rest/V1/geocode.html

##Getting Started

Once you have your API key, copy config/geocode.php to your app directory, and edit it as follows:

...
return array(
	'default' => array(
		'service'	=> '<Google or Yahoo here>',
		'api_key'	=> '<API key here>',
	),
);
...

Now instantiate:

$geocode = Geocode::instance();

or:

$geocode = Geocode::factory();

Instantiate using your own config group (other than 'default'):

$geocode = Geocode::instance('myconfig');

or:

$geocode = Geocode::factory('myconfig');

Now geocode an address:

$white_house = $geocode->execute('1600 Pennsylvania Avenue, Washington, D.C. 20500');

This will return an array, the contents of $white_house will look something like this:

Array
(
	[response] => Array
	(
		[status] => 200
		[request] => geocode
	)

	[placemarks] => Array
	(
		[0] => Array
		(
			[accuracy] => 9
			[country] => US
			[administrative_area] => DC
			[sub_administrative_area] => District of Columbia
			[locality] => Washington
			[postal_code] => 20500
			[latitude] => 38.89765
			[longitude] => -77.0356669
		)
	)
)

##Definitions

• response: The response from the web service.
• • status: The status code returned. (200 = SUCCESS)
• • request: The request type message.
• placemarks: Address(es) matching the query.
• • accuracy: The accuracy of the geocode. (1-10)
• • country: The ISO country code of the geocode.
• • administrative_area: The state or province of the geocode.
• • sub_administrative_area: The county of the geocode. (Google only)
• • locality: The city of the geocode.
• • postal_code: The postal/zip code of the geocode.
• • latitude: The latitude of the geocode.
• • longitude: The longitude of the geocode.

##Address Queries

You don't need the full address to geocode it. All of the following will work:

Geocode::factory()->execute('90210, USA');
Geocode::factory()->execute('Beverly Hills, CA, USA');
Geocode::factory()->execute('Sunset Strip, Beverly Hills, CA, USA');

Keep in mind that if you're geocoding a zip code, for example, that the latitude and longitude is roughly the center of this area.

##Placemarks

You may get a multiple results returned within the placemarks sub-array. Especially if the query is somewhat vague or there are multiple addresses matching the query. It will be sorted by the 'accuracy' of the geocodes.