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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_Config
  * @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    $Id$
  */
 
 /**
  * @category   Zend
  * @package    Zend_Config
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 abstract class Zend_Config_Writer
 {
     /**
      * Option keys to skip when calling setOptions()
      *
      * @var array
      */
     protected $_skipOptions = array(
         'options'
     );
 
     /**
      * Config object to write
      *
      * @var Zend_Config
      */
     protected $_config = null;
 
     /**
      * Create a new adapter
      *
      * $options can only be passed as array or be omitted
      *
      * @param null|array $options
      */
     public function __construct(array $options = null)
     {
         if (is_array($options)) {
             $this->setOptions($options);
         }
     }
 
     /**
      * Set options via a Zend_Config instance
      *
      * @param  Zend_Config $config
      * @return Zend_Config_Writer
      */
     public function setConfig(Zend_Config $config)
     {
         $this->_config = $config;
 
         return $this;
     }
 
     /**
      * Set options via an array
      *
      * @param  array $options
      * @return Zend_Config_Writer
      */
     public function setOptions(array $options)
     {
         foreach ($options as $key => $value) {
             if (in_array(strtolower($key), $this->_skipOptions)) {
                 continue;
             }
 
             $method = 'set' . ucfirst($key);
             if (method_exists($this, $method)) {
                 $this->$method($value);
             }
         }
 
         return $this;
     }
 
     /**
      * Write a Zend_Config object to it's target
      *
      * @return void
      */
     abstract public function write();
 }