Undefined variable: getproductdetail and Invalid argument supplied for foreach()

[eluser]freshigniter[/eluser]
[quote author="InsiteFX" date="1335520738"]

Code:

function products()
{
    $product_id = $this->uri->segment(3, 0);

    $this->load->model('Product_model');
    $data['getproductdetail']=$this->Product_model->get_productdetail($product_id);
    $this->load->view('detail/product', $data);
}

[/quote]
i tried the above code
same problem exists...