SEO Friendly URL in Codeigniter

Open ‘application\config\routes.php’
Add these line to routers.php:
$route['product/:any/:any'] = 'catalog/product/$1/$2';
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$route['product/:any/:any'] = 'catalog/product/$1/$2';
Open ‘application\controllers’ Folder and Create a File catalog.php.
Paste this code to catalog.php :
<?php class Catalog extends CI_Controller { public function product() { echo $this->uri->segment(1); echo $this->uri->segment(2); echo $this->uri->segment(3); } }
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<?php
class Catalog extends CI_Controller
{
    public function product()
    {
echo $this->uri->segment(1);
echo $this->uri->segment(2);
echo $this->uri->segment(3);
    }
}
Now Type “http://localhost/CodeIgniter/product/mobile/nokia” URL in Browser.
You can see all three segment:
segment 1 : product
segment 2 : mobile
segment 3 : nokia