Passing multiple variables in URL using codeigniter

The accepted answer will work for this particular issue, but will not work if the url ever changes. To access multiple variables in your controller, simply add to the function definition.

http://localhost/project/main/getproduct/24/45

class Main extends CI_Controller {

    public function getproduct($productID = 0, $factoryID = 0)
    {
      // ProductID will be 25
      // Factory ID will be 45
    }
}

Reference: CodeIgniter User Guide

You can use uri to retrieve values in your url

Here is an example

public function getproduct()
{
  $productID =  $this->uri->segment(3);
  $factoryID =  $this->uri->segment(4);
  // ProductID will be 25
  // Factory ID will be 45
}

Then you can just use the values as you please