diff options
Diffstat (limited to 'system/libraries/Cache/drivers/Cache_file.php')
| -rw-r--r-- | system/libraries/Cache/drivers/Cache_file.php | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php index dd27aa90e..9fd053362 100644 --- a/system/libraries/Cache/drivers/Cache_file.php +++ b/system/libraries/Cache/drivers/Cache_file.php @@ -1,4 +1,4 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * @@ -18,15 +18,16 @@ * * @package CodeIgniter * @author EllisLab Dev Team - * @copyright Copyright (c) 2006 - 2012 EllisLab, Inc. + * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com * @since Version 2.0 * @filesource */ +defined('BASEPATH') OR exit('No direct script access allowed'); /** - * CodeIgniter Memcached Caching Class + * CodeIgniter File Caching Class * * @package CodeIgniter * @subpackage Libraries @@ -36,14 +37,24 @@ */ class CI_Cache_file extends CI_Driver { + /** + * Directory in which to save cache files + * + * @var string + */ protected $_cache_path; + /** + * Initialize file-based cache + * + * @return void + */ public function __construct() { $CI =& get_instance(); $CI->load->helper('file'); $path = $CI->config->item('cache_path'); - $this->_cache_path = ($path == '') ? APPPATH.'cache/' : $path; + $this->_cache_path = ($path === '') ? APPPATH.'cache/' : $path; } // ------------------------------------------------------------------------ @@ -61,9 +72,9 @@ class CI_Cache_file extends CI_Driver { return FALSE; } - $data = unserialize(read_file($this->_cache_path.$id)); + $data = unserialize(file_get_contents($this->_cache_path.$id)); - if (time() > $data['time'] + $data['ttl']) + if ($data['ttl'] > 0 && time() > $data['time'] + $data['ttl']) { unlink($this->_cache_path.$id); return FALSE; @@ -86,10 +97,10 @@ class CI_Cache_file extends CI_Driver { public function save($id, $data, $ttl = 60) { $contents = array( - 'time' => time(), - 'ttl' => $ttl, - 'data' => $data - ); + 'time' => time(), + 'ttl' => $ttl, + 'data' => $data + ); if (write_file($this->_cache_path.$id, serialize($contents))) { @@ -155,19 +166,19 @@ class CI_Cache_file extends CI_Driver { return FALSE; } - $data = unserialize(read_file($this->_cache_path.$id)); + $data = unserialize(file_get_contents($this->_cache_path.$id)); if (is_array($data)) { $mtime = filemtime($this->_cache_path.$id); - if ( ! isset($data['data']['ttl'])) + if ( ! isset($data['ttl'])) { return FALSE; } return array( - 'expire' => $mtime + $data['data']['ttl'], + 'expire' => $mtime + $data['ttl'], 'mtime' => $mtime ); } |