Modify the Output class’ function _write_cache() to prevent your flashdata from getting stuck in a cache file. Save as system/application/libraries/MY_Output.php.
Lines added:
// Na-ah-ah! no flashing allowed in the cache;
$userdata = $CI->session->all_userdata();
foreach ($userdata as $k => $v)
{
if (strpos($k,'flash:') !== FALSE) return;
}
MY_Output
<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
* No Flash Cache
*
* @package CodeIgniter
* @subpackage Libraries
* @hacked-by Bradford Mar
*/
class MY_Output extends CI_Output {
/**
* Write a Cache File
*
* @access public
* @return void
*/
function _write_cache($output)
{
$CI =& get_instance();
// Na-ah-ah! no flashing allowed in the cache;
$userdata = $CI->session->all_userdata();
foreach ($userdata as $k => $v)
{
if (strpos($k,'flash:') !== FALSE) return;
}
$path = $CI->config->item('cache_path');
$cache_path = ($path == '') ? BASEPATH.'cache/' : $path;
if ( ! is_dir($cache_path) OR ! is_really_writable($cache_path))
{
return;
}
$uri = $CI->config->item('base_url').
$CI->config->item('index_page').
$CI->uri->uri_string();
$cache_path .= md5($uri);
if ( ! $fp = @fopen($cache_path, 'wb'))
{
log_message('error', "Unable to write cache file: ".$cache_path);
return;
}
$expire = time() + ($this->cache_expiration * 60);
flock($fp, LOCK_EX);
fwrite($fp, $expire.'TS--->'.$output);
flock($fp, LOCK_UN);
fclose($fp);
@chmod($cache_path, DIR_WRITE_MODE);
log_message('debug', "Cache file written: ".$cache_path);
}
}