extending native session class codeigniter 1.7.2

Question

I'm using native session library to replace the built in session library in CI. I need to extend the class but when I drop in MY_Session.php, CI reverts back to the old /system/libraries/Session.php.

How to I extend a class that's replaced a core CI class like Session.php?

Answer 1

Simply by naming your class files identically to a native library will cause CodeIgniter to use it instead of the native one. To use this feature you must name the file and the class declaration exactly the same as the native library. For example, to replace the native Email library you'll create a file named application/libraries/Email.php

-user guide

then call it

class MY_Email extends CI_Email {

    public function __construct()
    {
        parent::__construct();
    }
}

Loading Your Sub-class:

$this->load->library('email');

EDIT Try this:

Just load your new library (the one doing the extending):

Then, let's say we have Session.php and Mysession.php

<?php
load_class('session', false);

class Mysession extends Session {
   //your code
}  

You don't need the MY_ name tag still, I think you want to reserve that for it's original intended purpose to avoid confusion.

.. else just use an include() or require() :P