codeigniter - convert html to pdf - html

Question

I have a little problem. I have html page and I want to convert to pdf. My index page has a list that will get to the database and click on "Download PDF", I put this list in a PDF file.
My controller:
<?php
class pdf_c extends CI_Controller{
function __construct() {
parent::__construct();
$this->load->helper(array('url', 'mediatutorialpdf'));
}
function index($download_pdf = ''){
$ret = '';
$ID = 1;
$pdf_filename = 'user_info_'.$ID.'.pdf';
$link_download = ($download_pdf == TRUE)?'':anchor(base_url().'index.php/true', 'Download PDF');
$query = $this->db->query("SELECT * FROM `ci_pdf_user` WHERE `id` = '{$ID}' LIMIT 1");
if($query->num_rows() > 0)
{
$user_info = $query->row_array();
}
$data_header = array(
'title' => 'Convert codeigniter to pdf'
);
$data_userinfo = array(
'user_info' => $user_info,
'link_download' => $link_download
);
$header = $this->load->view('header',$data_header, true);
$user_info = $this->load->view('user_table', $data_userinfo, true);
$footer = $this->load->view('footer','', true);
$output = $header.$user_info.$footer;
if($download_pdf == TRUE)
{
generate_pdf($output, $pdf_filename);
}
else
{
echo $output;
}
}
}
?>
The problem is when I click the button "Download PDF" should redirect me to the function index () and get the $ download_pdf = true. And so called generate_pdf function () that will generate the PDF.
I think the problem is in the variable $ link_download, but can not solve the problem.
Thanks

Answer 1

I think that you could try with:
function index(pdf = 0)...
Then check that optional parameter with:
$pdf = $this->uri->segment(2, 0); //not sure, should be 2? try it...`
And then, if $pdf=='1' (send nummber rather than string 'true') ...etc,etc...