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I am using mPDF to generate pdf files from html. Now I also want to load some external CSS files and found in a couple of questions/answers on here that you are able to do that.

So I tried this:

$mpdf = new \Mpdf\Mpdf();
$stylesheet .= file_get_contents('../css/bootstrap.css');
$stylesheet .= file_get_contents('../css/custom.css');
$mpdf->WriteHTML($stylesheet, 1);
$mpdf->WriteHTML($html, 2);
$mpdf->Output($rootpad.'/uren.pdf','F');

But this gives me the following error:

[13-Nov-2019 10:56:05 UTC] PHP Notice:  Undefined variable: html in /home/dropfaci/public_html/includes/pdf.php on line 47

When I remove some code and end up with the following code, a pdf is generated just fine but without css:

$mpdf = new \Mpdf\Mpdf();
$mpdf->WriteHTML($html);
$mpdf->Output($rootpad.'/uren.pdf','F');

Why is it not working?

Improve this question
4
  • hmmm, have you defined html variable? Commented Nov 13, 2019 at 11:11
  • @RicardoCosta Yes Because without the stylesheets, the contents of $html are generated correctly into a PDF. Commented Nov 13, 2019 at 11:12
  • Can you take a look @ stackoverflow.com/a/15567033/8233144 more code would be helpful to try understand what's happening Commented Nov 13, 2019 at 11:14
  • @RicardoCosta I have the same code as that answer except I save the file on my server. Commented Nov 13, 2019 at 12:14
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