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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_Cache
* @subpackage Zend_Cache_Frontend
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Capture.php 23775 2011-03-01 17:25:24Z ralph $
*/
/**
* @see Zend_Cache_Core
*/
// require_once 'Zend/Cache/Core.php';
/**
* @package Zend_Cache
* @subpackage Zend_Cache_Frontend
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Cache_Frontend_Capture extends Zend_Cache_Core
{
/**
* Page identifiers
* @var array
*/
protected $_idStack = array();
/**
* Tags
* @var array
*/
protected $_tags = array();
protected $_extension = null;
/**
* Start the cache
*
* @param string $id Cache id
* @return mixed True if the cache is hit (false else) with $echoData=true (default) ; string else (datas)
*/
public function start($id, array $tags, $extension = null)
{
$this->_tags = $tags;
$this->_extension = $extension;
ob_start(array($this, '_flush'));
ob_implicit_flush(false);
$this->_idStack[] = $id;
return false;
}
/**
* callback for output buffering
* (shouldn't really be called manually)
*
* @param string $data Buffered output
* @return string Data to send to browser
*/
public function _flush($data)
{
$id = array_pop($this->_idStack);
if ($id === null) {
Zend_Cache::throwException('use of _flush() without a start()');
}
if ($this->_extension) {
$this->save(serialize(array($data, $this->_extension)), $id, $this->_tags);
} else {
$this->save($data, $id, $this->_tags);
}
return $data;
}
}
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