导航页面链接（codeigniter）

How I can make navigations pages links in codeigniter.

Like this:

Main_page > page_1 > page_1_chiled

So the user can click any of these pages and go to it directly.

Thank you

Assume you controller name is media. And there are some methods

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

    class Media extends CI_Controller
    {
        public function  __construct()
        {
            parent::__construct();
        }

        public function press()
        {
            # Press Relese
        }

        public function tele()
        {
            # Televistion Relses
        }

        public function social()
        {
            # Social realse
        }

    }

Create file call breadcumb.php in view. Inside

<? if ($this->uri->segment(1) == 'Media') { ?>
    <ul>
        <li><a href="<?= base_url() ?>">Home</a></li>
        <li>&#187;</li>
        <li><a href="">Media</a></li>
        <li>&#187;</li>
        <li class="first">You Are Here</li>
    </ul>
<? } ?>
<? if ($this->uri->segment(1) == 'Media' && $this->uri->segment(2) == 'press') { ?>
    <ul>
        <li><a href="<?= base_url() ?>">Home</a></li>
        <li>&#187;</li>
        <li><a href="">Media</a></li>
        <li>&#187;</li>
        <li><a href="">press</a></li>
        <li>&#187;</li>
        <li class="first">You Are Here</li>
    </ul>
<? } ?>
<? if ($this->uri->segment(1) == 'Media' && $this->uri->segment(2) == 'tele') { ?>
    <ul>
        <li><a href="<?= base_url() ?>">Home</a></li>
        <li>&#187;</li>
        <li><a href="">Media</a></li>
        <li>&#187;</li>
        <li><a href="">tele</a></li>
        <li>&#187;</li>
        <li class="first">You Are Here</li>
    </ul>
<? } ?>
<? if ($this->uri->segment(1) == 'Media' && $this->uri->segment(2) == 'social') { ?>
    <ul>
        <li><a href="<?= base_url() ?>">Home</a></li>
        <li>&#187;</li>
        <li><a href="">Media</a></li>
        <li>&#187;</li>
        <li><a href="">social</a></li>
        <li>&#187;</li>
        <li class="first">You Are Here</li>
    </ul>
<? } ?>