Button to fetch user back to their previous URL instead of clicking on the browser Back button

[eluser]InsiteFX[/eluser]

Code:

if (isset($this->input->server('HTTP_REFERER')))
{
    $this->session->set_userdata('prev_url', $this->input->server('HTTP_REFERER'));
}
else
{
    $this->session->set_userdata('prev_url', base_url());
}

// when Continue Shopping button clicked.
redirect($this->session->userdata('prev_url'), 'location');

InsiteFX