Pdf doesn't show when i submit php form

Asked Aug 02 '18 at 10:13

Active Aug 02 '18 at 10:59

Viewed 54 times

I develop a form in php which is about quiz. when i submit the form it shows

Unable to stream pdf: headers already sent' and shows variable is not defined. I tried more to find the error and solution. But couldn't find.

<?php
 require_once 'dompdf/autoload.inc.php';

//Reference the Dompdf namespace
use Dompdf\Dompdf;
$dompdf = new Dompdf();
$html = 'Here is my html code large number of line.';
$dompdf->loadHtml($html);
$dompdf->setPaper('A4','landscape');
$dompdf->render();

//Output the generated PDF
$dompdf->stream('codexworld',array('Attachment'=>0));
?>

edited Aug 02 '18 at 10:59

eisbehr

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asked Aug 02 '18 at 10:13

Muhammad Mahdi

Anything before that code? Do you `include()` or `require()` something beforehand? – brombeer Aug 02 '18 at 10:18
1

Most probably there's a whitespace or new line somewhere in your code causing this. – munsifali Aug 02 '18 at 10:20
Take a look https://stackoverflow.com/questions/19524709/dompdf-unable-to-stream-pdf-headers-already-sent – munsifali Aug 02 '18 at 10:22
#kerbholz no there are no include() or require() before the code. – Muhammad Mahdi Aug 02 '18 at 10:22
how can i find the whitespace ? – Muhammad Mahdi Aug 02 '18 at 10:23
I have given a link on my second comment.Please read – munsifali Aug 02 '18 at 10:25
2

Whitespace - make sure, your PHP files have NO ending PHP tags `?>`. Also you may want to insert `ob_start()` just before `$dompdf = new Dompdf();`. – lubosdz Aug 02 '18 at 10:26

Pdf doesn't show when i submit php form

0 Answers0