How to call codeigniter controller function from view

Question

How to call codeigniter controller function from view? When i call the function in a controller, get a 404 page.

Answer 1

I had this same issue , but after a couple of research I fond it out it's quite simple to do,

Locate this URL in your Codeigniter project: application/helpers/util_helper.php

add this below code

//you can define any kind of function but I have queried database in my case

//check if the function exist
 if (!function_exists('yourfunctionname')) {
    function yourfunctionname($param (if neccesary)) {
        
        //get the instance
        $ci = & get_instance();
    
        // write your query with the instance class

        $data =  $ci->db->select('*');
        $data =  $ci->db->from('table');  
        $data =  $ci->db->where('something', 'something');

        //you can return anythting

        $data =  $ci->db->get()->num_rows(); 

        if ($data > 0) {
            return $data;
        }  else {
            return 0;
        }  
    }
}

Answer 2

I know this is bad.. But I have been in hard situation where it is impossible to put this back to controller or model.

My solution is to call a function on model. It can be do inside a view. But you have to make sure the model has been loaded to your controller first.

Say your model main_model, you can call function on the model like this on your view : $this->main_model->your_function();

Hope this help. :)