Category:Library | Category:Library -> Community | Category:Library -> Cache
Delete the cache for the current page or for the page at the URI supplied by the first parameter.
// Deletes the current page's cache;
$this->output->clear_page_cache();
// Deletes the cache for "/welcome/index";
$this->output->clear_page_cache('welcome/index')
// Deletes the exact cache file 67d8b8110269ea53756e4d7090152bfc;
$filepath = $this->config->item('cache_path').'67d8b8110269ea53756e4d7090152bfc';
$this->output->clear_page_cache(null, $filepath);
For flashdata, call it before you redirect:
$this->clear_page_cache($newURI);
$this->session->flashdata('logout','Laters!');
redirect($newURI);
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
* Cache file naming routine factored out to allow for manual deletion.
*
* Responsible for sending final output to browser
*
* @package CodeIgniter
* @subpackage Libraries
* @hacked-by Bradford Mar
*/
class MY_Output extends CI_Output {
/**
* Get the uri of a given cached page
*
* @access public
* @return
*/
function get_cache_URI($set_uri = null){
$CFG =& load_class('Config');
$URI =& load_class('URI');
$set_uri = (isset($set_uri)) ? $set_uri : $URI->uri_string;
$cache_path = ($CFG->item('cache_path') == '') ? BASEPATH.'cache/' : $CFG->item('cache_path');
if ( ! is_dir($cache_path) OR ! is_writable($cache_path))
{
return FALSE;
}
/*
* Build the file path. The file name is an MD5 hash of the full URI
*/
$uri = $CFG->item('base_url').
$CFG->item('index_page').
$URI->uri_string;
return array('path'=>$cache_path, 'uri'=>$uri);
}
// --------------------------------------------------------------------
/**
* Manually clear a cached file
*
* @access public
* @return void
*/
function clear_page_cache($set_uri = null, $filepath = null){
switch (isset($filepath))
{
case FALSE:
$cacheuri = $this->get_cache_URI($set_uri);
$filepath = $cacheuri['path'];
$filepath .= md5($cacheuri['uri']);
default:
if(file_exists($filepath))
{
touch($filepath);
unlink($filepath);
log_message('debug', "Cache deleted for: ".$cacheuri['uri']);
} else
{
return FALSE;
}
break;
}
}
}
// END MY_Output Class
/* End of file MY_Output.php */
/* Location: ./system/application/libraries/MY_Output.php */