How is clear page cache in the CodeIgniter

Question

I use CodeIgniter. Always part of my page is cache and don't remove by Ctrl+F5 in the browser. When I change the name page in the view it worked !!!?

How can clear page cache in the CodeIgniter?

Ordure

Answer 1

You need to manually delete the cached items in the application/cache folder.

https://www.codeigniter.com/user_guide/general/caching.html

Vexillum

codeigniter.com/user_guide/general/caching.html is the current 3.x link.... – Interlining

Answer 2

function delete_cache($uri_string=null)
{
    $CI =& get_instance();
    $path = $CI->config->item('cache_path');
    $path = rtrim($path, DIRECTORY_SEPARATOR);

    $cache_path = ($path == '') ? APPPATH.'cache/' : $path;

    $uri =  $CI->config->item('base_url').
            $CI->config->item('index_page').
            $uri_string;

    $cache_path .= md5($uri);

    return unlink($cache_path);
}

Alexia

This answer is missing its educational explanation. – Coon

Answer 3

public function clear_path_cache($uri)
{
    $CI =& get_instance();
    $path = $CI->config->item('cache_path');
    //path of cache directory
    $cache_path = ($path == '') ? APPPATH.'cache/' : $path;

    $uri =  $CI->config->item('base_url').
    $CI->config->item('index_page').
    $uri;
    $cache_path .= md5($uri);

    return @unlink($cache_path);
}




/**
 * Clears all cache from the cache directory
 */
public function clear_all_cache()
{
    $CI =& get_instance();
    $path = $CI->config->item('cache_path');

    $cache_path = ($path == '') ? APPPATH.'cache/' : $path;

    $handle = opendir($cache_path);
    while (($file = readdir($handle))!== FALSE) 
    {
        //Leave the directory protection alone
        if ($file != '.htaccess' && $file != 'index.html')
        {
           @unlink($cache_path.'/'.$file);
        }
    }
    closedir($handle);       
}

Volitive

This answer is missing its educational explanation. – Coon

Answer 4

Codeigniter 3

I added an endpoint to a controller

function delete_cache() {
    preg_match("/(\/index.php)(?<endpoint>\/[\w.-\/]*)/", 
    $_SERVER["HTTP_REFERER"], $result);
    $this->output->delete_cache($result["endpoint"]);
    redirect($result["endpoint"]);
}

Then I added a refresh button pointed to this endpoint. When the user click on the refresh button the current cached file will be delete, then redirect to the page.

Berns

Is that regex pattern really intending to include a range of characters from a literal dot to a forward slash? – Coon

Answer 5

It is probably in a session.Try deleting your cookies.

Sheasheaf

i deleting the cookies in the chrome browser but not ok. – Ordure

its saved server side, as described there: codeigniter.com/user_guide/general/caching.html – Logistician