$region = Mage::getModel('directory/region')->load(12);
$state_code = $region->getCode(); //CA

$region = Mage::getModel('directory/region')->load(12);
$state_name = $region->getName(); //California

$region = Mage::getModel('directory/region')->loadByCode('CA', 'US');
$state_id = $region->getId(); //12

<VirtualHost *:80>
    ServerAdmin webmaster@dummy-host.example.com
    DocumentRoot "/var/www/magento/"
    ServerName loca.lho.st
    ServerAlias loca.lho.st
    ErrorLog "logs/error_log"
    CustomLog "logs/access_log" common
</VirtualHost>

127.0.0.1    loca.lho.st

http://loca.lho.st

<!--
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Academic Free License (AFL 3.0)
 * that is bundled with this package in the file LICENSE_AFL.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/afl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category   Mage
 * @package    Mage_Core
 * @copyright  Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license    http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
 */
-->
<config>
    <global>
        <install>
            <date><![CDATA[Mon, 23 Sep 2013 19:53:16 +0000]]></date>
        </install>
        <crypt>
            <key><![CDATA[414c9022922d31b62bbe4447356e4ed6]]></key>
        </crypt>
        <disable_local_modules>false</disable_local_modules>
        <resources>
            <db>
                <table_prefix><![CDATA[]]></table_prefix>
            </db>
            <default_setup>
                <connection>
                    <host><![CDATA[127.0.0.1]]></host>
                    <username><![CDATA[MYSQL_USERNAME]]></username>
                    <password><![CDATA[MYSQL_PASSWORD]]></password>
                    <dbname><![CDATA[DATABASE_NAME]]></dbname>
                    <initStatements><![CDATA[SET NAMES utf8]]></initStatements>
                    <model><![CDATA[mysql4]]></model>
                    <type><![CDATA[pdo_mysql]]></type>
                    <pdoType><![CDATA[]]></pdoType>
                    <active>1</active>
                </connection>
            </default_setup>
        </resources>
    <session_save><![CDATA[files]]></session_save>
    </global>
    <admin>
        <routers>
            <adminhtml>
                <args>
                    <frontName><![CDATA[admin]]></frontName>
                </args>
            </adminhtml>
        </routers>
    </admin>
</config>

<?php
echo "Start Cleaning all caches at ... " . date("Y-m-d H:i:s") . "\n\n";
ini_set("display_errors", 1);

require 'app/Mage.php';
Mage::app('admin')->setUseSessionInUrl(false);
Mage::getConfig()->init();

$types = Mage::app()->getCacheInstance()->getTypes();

try {
    echo "Cleaning data cache... \n";
    flush();
    foreach ($types as $type => $data) {
        echo "Removing $type ... ";
        echo Mage::app()->getCacheInstance()->clean($data["tags"]) ? "Cache cleared!" : "There is some error!";
        echo "\n";
    }
} catch (exception $e) {
    die("[ERROR:" . $e->getMessage() . "]");
}

echo "\n";

try {
    echo "Cleaning stored cache... ";
    flush();
    echo Mage::app()->getCacheInstance()->clean() ? "Cache cleared!" : "There is some error!";
    echo "\n\n";
} catch (exception $e) {
    die("[ERROR:" . $e->getMessage() . "]");
}
?>

if (method_exists($model, $method)) {
        if (isset($methodInfo->arguments) && ((string)$methodInfo->arguments) == 'array') {
            return $model->$method((is_array($args) ? $args : array($args)));
        } elseif (!is_array($args)) {
            return $model->$method($args);
        } else {
            return call_user_func_array(array(&$model, $method), $args); 
        }       
} else {
        throw new Mage_Api_Exception('resource_path_not_callable');
}

if (method_exists($model, $method)) {
        Mage::log($method, null, 'api.log'); //logs the method
        Mage::log($args, null, 'api.log'); //logs the arguments
        if (isset($methodInfo->arguments) && ((string)$methodInfo->arguments) == 'array') {
            return $model->$method((is_array($args) ? $args : array($args)));
        } elseif (!is_array($args)) {
            return $model->$method($args);
        } else {
            return call_user_func_array(array(&$model, $method), $args);
        }
} else {
        throw new Mage_Api_Exception('resource_path_not_callable');
}