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 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * 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@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Service_Amazon
  * @subpackage Ec2
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * @see Zend_Service_Amazon_Ec2_Abstract
  */
 // require_once 'Zend/Service/Amazon/Ec2/Abstract.php';
 
 /**
  * An Amazon EC2 interface to query which Availibity Zones your account has access to.
  *
  * @category   Zend
  * @package    Zend_Service_Amazon
  * @subpackage Ec2
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Service_Amazon_Ec2_Availabilityzones extends Zend_Service_Amazon_Ec2_Abstract
 {
     /**
      * Describes availability zones that are currently available to the account
      * and their states.
      *
      * @param string|array $zoneName            Name of an availability zone.
      * @return array                            An array that contains all the return items.  Keys: zoneName and zoneState.
      */
     public function describe($zoneName = null)
     {
         $params = array();
         $params['Action'] = 'DescribeAvailabilityZones';
 
         if(is_array($zoneName) && !empty($zoneName)) {
             foreach($zoneName as $k=>$name) {
                 $params['ZoneName.' . ($k+1)] = $name;
             }
         } elseif($zoneName) {
             $params['ZoneName.1'] = $zoneName;
         }
 
         $response = $this->sendRequest($params);
 
         $xpath  = $response->getXPath();
         $nodes  = $xpath->query('//ec2:item');
 
         $return = array();
         foreach ($nodes as $k => $node) {
             $item = array();
             $item['zoneName']   = $xpath->evaluate('string(ec2:zoneName/text())', $node);
             $item['zoneState']  = $xpath->evaluate('string(ec2:zoneState/text())', $node);
 
             $return[] = $item;
             unset($item);
         }
 
         return $return;
     }
 }