Improve the Cache library
diff --git a/system/libraries/Cache/drivers/Cache_file.php b/system/libraries/Cache/drivers/Cache_file.php
index be392d3..1942797 100644
--- a/system/libraries/Cache/drivers/Cache_file.php
+++ b/system/libraries/Cache/drivers/Cache_file.php
@@ -1,13 +1,13 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 5.1.6 or newer
*
* NOTICE OF LICENSE
- *
+ *
* Licensed under the Open Software License version 3.0
- *
+ *
* This source file is subject to the Open Software License (OSL 3.0) that is
* bundled with this package in the files license.txt / license.rst. It is
* also available through the world wide web at this URL:
@@ -22,19 +22,19 @@
* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://codeigniter.com
* @since Version 2.0
- * @filesource
+ * @filesource
*/
// ------------------------------------------------------------------------
/**
- * CodeIgniter Memcached Caching Class
+ * CodeIgniter Memcached Caching Class
*
* @package CodeIgniter
* @subpackage Libraries
* @category Core
* @author EllisLab Dev Team
- * @link
+ * @link
*/
class CI_Cache_file extends CI_Driver {
@@ -48,9 +48,7 @@
{
$CI =& get_instance();
$CI->load->helper('file');
-
$path = $CI->config->item('cache_path');
-
$this->_cache_path = ($path == '') ? APPPATH.'cache/' : $path;
}
@@ -68,16 +66,15 @@
{
return FALSE;
}
-
- $data = read_file($this->_cache_path.$id);
- $data = unserialize($data);
-
+
+ $data = unserialize(read_file($this->_cache_path.$id));
+
if (time() > $data['time'] + $data['ttl'])
{
unlink($this->_cache_path.$id);
return FALSE;
}
-
+
return $data['data'];
}
@@ -88,22 +85,22 @@
*
* @param string unique key
* @param mixed data to store
- * @param int length of time (in seconds) the cache is valid
+ * @param int length of time (in seconds) the cache is valid
* - Default is 60 seconds
* @return boolean true on success/false on failure
*/
public function save($id, $data, $ttl = 60)
- {
+ {
$contents = array(
'time' => time(),
- 'ttl' => $ttl,
+ 'ttl' => $ttl,
'data' => $data
);
-
+
if (write_file($this->_cache_path.$id, serialize($contents)))
{
@chmod($this->_cache_path.$id, 0777);
- return TRUE;
+ return TRUE;
}
return FALSE;
@@ -119,14 +116,7 @@
*/
public function delete($id)
{
- if (file_exists($this->_cache_path.$id))
- {
- return unlink($this->_cache_path.$id);
- }
- else
- {
- return FALSE;
- }
+ return (file_exists($this->_cache_path.$id)) ? unlink($this->_cache_path.$id) : FALSE;
}
// ------------------------------------------------------------------------
@@ -135,7 +125,7 @@
* Clean the Cache
*
* @return boolean false on failure/true on success
- */
+ */
public function clean()
{
return delete_files($this->_cache_path);
@@ -170,10 +160,9 @@
{
return FALSE;
}
-
- $data = read_file($this->_cache_path.$id);
- $data = unserialize($data);
-
+
+ $data = unserialize(read_file($this->_cache_path.$id));
+
if (is_array($data))
{
$mtime = filemtime($this->_cache_path.$id);
@@ -188,7 +177,7 @@
'mtime' => $mtime
);
}
-
+
return FALSE;
}
@@ -198,7 +187,7 @@
* Is supported
*
* In the file driver, check to see that the cache directory is indeed writable
- *
+ *
* @return boolean
*/
public function is_supported()