How to pass data to view and Load view into a variable - codeigniter

Question

I would like to pass $data variable to print view then I want to pass result of print view to a variable ($myvariable ), I don't want to show anything to user :
$myvariable = $this->load->view('print' , $data,true);
but $myvariable is null and print view will load!
updated
function makePDF(){
$pdfFilePath = FCPATH."assests/gifts/test.pdf";
$data['page_title'] = 'Hello world'; // pass data to the view
if (file_exists($pdfFilePath) == FALSE)
{
ini_set('memory_limit','32M'); // boost the memory limit if it's low <img src="https://s.w.org/images/core/emoji/72x72/1f609.png" alt="😉" draggable="false" class="emoji">
$html = $this->printer(212486); // render the view into HTML
var_dump($html);
return;
$this->load->library('pdf');
$pdf = $this->pdf->load();
$pdf->SetFooter($_SERVER['HTTP_HOST'].'|{PAGENO}|'.date(DATE_RFC822)); // Add a footer for good measure <img src="https://s.w.org/images/core/emoji/72x72/1f609.png" alt="😉" draggable="false" class="emoji">
$pdf->WriteHTML($html); // write the HTML into the PDF
$pdf->Output($pdfFilePath, 'F'); // save to file because we can
}
}
function printer( $id = 0 ){
....
$data = array ('coupons'=>$coupons , 'shop'=>$shop , 'details'=>$parent );
return $this->view('print' , $data,true);
}

Answer 1

Don't use a return to get your view back, instead, adjust your functions to save the view into a variable and then return that variable. Also, when you say $myvariable is NULL, I assume you are referring to the $html variable in your UPDATED section?
Firstly, these lines will display your view just because you're dumping out written html and then exiting the function:
var_dump($html);
return;
So to clean up, I would suggest altering your functions like so:
function makePDF(){
$pdfFilePath = FCPATH."assests/gifts/test.pdf";
$data['page_title'] = 'Hello world'; // pass data to the view
if (file_exists($pdfFilePath) == FALSE)
{
ini_set('memory_limit','32M'); // boost the memory limit if it's low
$html = $this->printer(212486); // render the view into HTML
$this->load->library('pdf');
$pdf = $this->pdf->load();
$pdf->SetFooter($_SERVER['HTTP_HOST'].'|{PAGENO}|'.date(DATE_RFC822)); // Add a footer for good measure
$pdf->WriteHTML($html); // write the HTML into the PDF
$pdf->Output($pdfFilePath, 'F'); // save to file because we can
}
}
and...
function printer( $id = 0 ){
....
$data = array ('coupons'=>$coupons , 'shop'=>$shop , 'details'=>$parent );
$return_html = $this->load->view('print' , $data, true);
return $return_html;
}
The biggest difference here is ensuring the view syntax is written correctly from $this->view('print', $data, true); to $this->LOAD->view('print', $data, true);
Also, for good measure the view return was saved into a variable and returned as that object. I would step these changes one at a time because taking that second step may not be necessary.