<?php

function is_logged_in()

{
    $ci=get_instance();
    if (!$ci->session->userdata('user_name')) {
            redirect(base_url() . "login");
        
    } else {
        $admin_role = $ci->session->userdata('admin_role');
        $menu = $ci->uri->segment(1);
        
        $queryMenu = $ci->db->get_where('admin_privilage',['url'=>$menu])->row_array();
        $menu_id = $queryMenu['id'];
        
        $userAccess = $ci->db->get_where('admin_menu_role',[
            'id_role'=>$admin_role,
            'id_privilage'=>$menu_id
            ]);
            
            if($userAccess->num_rows() < 1) {
                redirect(base_url());
            }
    }
}