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nfaiz · 03-19-2021, 06:27 AM

(03-18-2021, 05:25 PM)mi_ov Wrote: Hello, the problem is a very specific case, although I am not sure what's causing it.

I have a local server environment which uses:

Windows 10 x64

Apache 2.4.25 x64

PHP 7.4.11

Dompdf 1.0.2

I use the dompdf library (tried both via composer and as a required library) to generate PDFs with user data. A basic example of code would be something like this:

PHP Code:
public function test() { $dompdf = new \Dompdf\Dompdf(); $dompdf->loadHtml('<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html;charset=utf-8"><title>Solicitud en PDF</title></head><body><h1>Hola</h1></body></html>'); $dompdf->setPaper('Letter', 'portrait'); // Render the HTML as PDF $dompdf->render(); // Output the generated PDF to Browser $dompdf->stream("test.pdf",array('Attachment'=>0)); }

Now on my local server, using both via composer and as a required library, this process works fine and I get this:

On the other hand, my production environment has:

Ubuntu 20.04 LTS

Apache 2.4.41 - Apache uses FPM and http/2

PHP 7.4.3

Dompdf 1.0.2

I thought this part was working, but then I started getting reports that users are not getting PDFs but scrambled letters and symbols. So I tried to see what's happening and I got this.

This literally comes out as the PDF code.

If I copy this function outside my CodeIgniter instance on the same server, just using a regular php file and requiring the library, there's no problem. So, for some reason I get a problem when those three are combined:

CodeIgniter 4.1.1

PHP 7.4 FPM

DomPDF 1.0.2

As I said before if I remove CodeIgniter from this combination on the production server it works.

I also tried with PHP 8, to check if it was a PHP issue, same result.

My theory is that it might be some header issue, because the file is output as text and not PDF.

Put exit(); after

PHP Code:
$dompdf->stream("test.pdf",array('Attachment'=>0)); 

Like this

PHP Code:
$dompdf->stream("test.pdf",array('Attachment'=>0)); 
exit(); 