How To Use Multiple Cache Folder In CodeIgniter - php

Question

I have a multiple language website I want to create a specific cache folder for every language. How Can I do this?
I currently using one cache folder with this code.
Can You Help Me?
$lang = $CI->session->userdata('language');
$cache_path .= md5($uri).'-'.$lang;

Answer 1

the parameter that configures the cache folder is in config.php and its called cache_path. For modifying in during runtime, we can use the $this->config->set_item function. Obviously, the cache folder switch should be done as early as possible in the controller function, before the caching function call.
Here is a sample implementation, controller Test:
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Test extends CI_Controller {
/**
* Index Page for this controller.
*
* Maps to the following URL
* http://example.com/index.php/welcome
* - or -
* http://example.com/index.php/welcome/index
* - or -
* Since this controller is set as the default controller in
* config/routes.php, it's displayed at http://example.com/
*
* So any other public methods not prefixed with an underscore will
* map to /index.php/welcome/<method_name>
* #see https://codeigniter.com/user_guide/general/urls.html
*/
public function index()
{
$user_language = 'french';
$this->config->set_item('cache_path', 'IS_ROOT/cache/' . $user_language . '/');
$this->output->cache(1);
$this->load->view('welcome_message');
}
}
when you run it, you can see in the logs, that the directory "french" under the "global" IS_ROOT/cache was used:
INFO - 2018-06-09 22:12:39 --> File loaded: /php_basedir/CodeIgniter_3_1_8/application/views/welcome_message.php
DEBUG - 2018-06-09 22:12:39 --> Cache file written: IS_ROOT/cache/french/bc3ad60292ed776397da07cac67ddd28
INFO - 2018-06-09 22:12:39 --> Final output sent to browser
DEBUG - 2018-06-09 22:12:39 --> Total execution time: 0.0138
hope it helps

Answer 2

I Find a solution. we must edit output.php in core folder like this.
public function _write_cache($output){
$CI =& get_instance();
$lang = $CI->session->userdata('language');
$path = $CI->config->item('cache_path');
$cache_path = ($path === '') ? APPPATH.'cache_'.$lang.'/' : $path;
//other code
}
public function _display_cache(&$CFG, &$URI){
$CI =& get_instance();
$lang = $CI->session->userdata('language');
$cache_path = ($CFG->item('cache_path') === '') ? APPPATH.'cache_'.$lang.'/' : $CFG->item('cache_path');
//other code
}