Codeigniter 3 - 无法找到指定的类：Session.php

Question

Hey guys i am wondering why i always get Unable to locate the specified class: Session.php

I'm trying to do is I have a controller and I want to inherit the other controller but when i call the method of the inherit controller it returns Unable to locate the specified class: Session.php

E.G

Controller A

class controller_a extends CI_Controller {
    public function __construct() {
        parent::__construct();
         $this->load->model("model");
    }

    public function methodA () {
       //the pagination codes
    }
}

Controller B

include_once (dirname(__FILE__) . "/controller_a.php");

class controller_b extends controller_a {
    public function __construct() {
         parent::__construct();
         $this->load->library("session");
    }

    public function methodB() {
        $a = new controller_a();
        $this->load->view("head");
        $this->load->view("navbar");
        $a->methodA();
        $this->load->view("footer");
    }
}

I don't why it keeps returning the error. Can anyone help me in this problem? Thanks.

Answer 1

Please autoload the session library in autoload.php under application/config folder.

$autoload['library'] = array('session');

OR

Load the library inside your parent controller's constructor like in the below code.

class controller_a extends CI_Controller {
    public function __construct() {
        parent::__construct();
         $this->load->model("model");
         $this->load->library('session');
    }

    public function methodA () {
       //the pagination codes
    }
}

Hope this can help you.