<?php
/**
* SimplePie
*
* A PHP-Based RSS and Atom Feed Framework.
* Takes the hard work out of managing a complete RSS/Atom solution.
*
* Copyright (c) 2004-2009, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* * Neither the name of the SimplePie Team nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
* AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @package SimplePie
* @version 1.3-dev
* @copyright 2004-2010 Ryan Parman, Geoffrey Sneddon, Ryan McCue
* @author Ryan Parman
* @author Geoffrey Sneddon
* @author Ryan McCue
* @link http://simplepie.org/ SimplePie
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
* @todo phpDoc comments
*/
class SimplePie_Cache_File implements SimplePie_Cache_Base
{
protected $location;
protected $filename;
protected $extension;
protected $name;
public function __construct($location, $filename, $extension)
{
$this->location = $location;
$this->filename = $filename;
$this->extension = $extension;
$this->name = "$this->location/$this->filename.$this->extension";
}
public function save($data)
{
if (file_exists($this->name) && is_writeable($this->name) || file_exists($this->location) && is_writeable($this->location))
{
if (is_a($data, 'SimplePie'))
{
$data = $data->data;
}
$data = serialize($data);
return (bool) file_put_contents($this->name, $data);
}
return false;
}
public function load()
{
if (file_exists($this->name) && is_readable($this->name))
{
return unserialize(file_get_contents($this->name));
}
return false;
}
public function mtime()
{
if (file_exists($this->name))
{
return filemtime($this->name);
}
return false;
}
public function touch()
{
if (file_exists($this->name))
{
return touch($this->name);
}
return false;
}
public function unlink()
{
if (file_exists($this->name))
{
return unlink($this->name);
}
return false;
}
}
