After login i am redirecting user to forum controller, but somehow it execute constrctor but do not enter into `index()` function. when i try to exit("line 7") its stop execution, but when i try to exit in index it wont 

```
<?php
class Forum extends CI_Controller
{
    public function __construct() {
        parent::__construct();
        $this->load->model('ForumModel');   
            //exit("line 7");
    }
    function index()
    {
        exit("line9");
        //print_r($this->session->userdata);

```

Any help appreciated!!