Custom Cache Library - Printable Version

Code:
&lt;?php



class Cache_example extends Controller {



    function Cache_example()

    {

        parent::Controller();



        $this->load->library("cache");

    }



    // Simple Example



    function example()

    {

        // Did the cache library return FALSE, meaning there was no cache file



        if(($data = $this->cache->get("my_folder", "my_custom_cache_name") === FALSE)

        {

            // Use your own methods to return some data



            $this->load->model("my_model");



            $data = $this->my_model->get_some_data();



            // Attempt to write a new cache file for next time



            $this->cache->write("my_folder", "my_custom_cache_name", $data);



            // You can optionally send a custom expiration in minutes (in lieu of the

            // default set in your config file) as the 4th parameter... like so:

            //

            // $this->cache->write("my_folder", "my_custom_cache_name", $data, 30);

        }



        $this->load->view("some_view", $data);

    }



    // Semi-Advanced Example



    function posts($post_id)

    {

        if(($data = $this->cache->get("blog_posts", $post_id) === FALSE)

        {

            // Exaggerated Data Retrieval



            $this->load->model(array("blog_model", "pictures_model"));



            $data['posts'] = $this->blog_model->get_posts();

            $data['recent_comments'] = $this->blog_model->get_recent_comments();

            $data['pictures'] = $this->pictures_model->get_pictures();



            $this->cache->write("blog_posts", $post_id, $data);

        }



        $this->load->view("blog_posts", $data);

    }



}