Issues with PHP warnings and errors

apparently this line in mpdf.php

		} else
			$size *= (25.4 / $this->dpi); //nothing == px

Changing to php 7.1 still generating error on EVERY load; so not issue with 7.1 vs 7.2.5 apparently.

I have not tried to hack this, but it seems like updating to v7.0 vs 6.1 of mPDF might be advisable ?

With PDF & Print by BestWebSoft / Version: 2.0.2

ref:

// Software: mPDF, Unicode-HTML Free PDF generator                              *
// Version:  6.1 

version 7.0.0 works up to PHP 7.2 ( < 7.3 )
ref
https://mpdf.github.io/

• This reply was modified 6 years, 6 months ago by neotrope.

Hi,

Thank you for contacting us and for the suggested solution.

Our PDF & Print plugin’s work is based on mPDF library version 6.1.
We are planning to update the mPDF library in the future.
At the moment we cannot provide any terms when it will be implemented.

Please let us know if you have any additional questions.

Thanks for reply.
Just for laughs, I’m going to try rolling in v7 to the plugin to see if works or not.

In our case, we have a news portal with 15,000 pages of content going back to 2005, even though I have pruned about 1,000 totally obsolete items this year. Problem for us, is BING likes to ping our pages as we used to have static .txt and .pdf files in addition to .shtml – so when we went to .php – we retired and redirected all the old pdf and txt URLs, but now with a “save pdf’ button (we’re using our own bootstrap button, not function or shortcode from plugin) — BING is “pinging” the PDF and archiving it even with a rel=nofollow — so were getting a *ton* of errors every day, as you can imagine once we moved to PHP 7.2.5 which we had to do for our ecommerce system ….

Anyway — can’t go back to PHP 5.6, so I love the plugin, and will see if mPDF 7x works with the plugin as-is, and report back.

Thanks again for the awesome plugin!

HI,
I was not able to ‘hack’ the update due to how you’re integrating that. And also got sidetracked moving our server to HTTP/2 + ALPN.

To revisit this… any ETA on updating this, or even starting with the PRO version, for PHP 7 compatibility. We’re running PHP 7.2 and want to use this again, and I was about to buy the pro version when we ran into the massive error logs issue.

Thanks for your time – I imagine you might have better things to do, but we’d love to see a PHP 7 ready version of this, as it’s super helpful for our company!

Christopher

Hi, I have the same issue as it seems:

I am using Version 2.0.2 and have PHP 7.2 (hosted on 1&1) when I got this error. I had to downgrade to PHP 7.0 to no longer get the messages (and a properly formatted PDF). The warnings I see in the generated PDF file when using PHP 7.2 are:

<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/mpdf.php</b> on line <b>30649</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/mpdf.php</b> on line <b>30649</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/Tag.php</b> on line <b>1889</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/Tag.php</b> on line <b>1889</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/Tag.php</b> on line <b>1889</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/Tag.php</b> on line <b>1889</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/Tag.php</b> on line <b>2006</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/Tag.php</b> on line <b>2006</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/mpdf.php</b> on line <b>6387</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/Tag.php</b> on line <b>2003</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/mpdf.php</b> on line <b>6387</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/Tag.php</b> on line <b>2003</b><br />
<br />
<b>Warning</b>:  A non-numeric value encountered in <b>/xxx/wordpress/wp-content/plugins/pdf-print/mpdf/mpdf.php</b> on line <b>6387</b><br />

We are also inclined to buy a license for this plugin for our website, but if this bug cannot be fixed by 12/2018 (which is when the 1&1 support for PHP 7.0 expires) then I’d hesitate to do so.

PS: The print function seems to work fine in PHP 7.2 (no visible warnings at least). So I’d guess the bug is somewhere in the PDF-related code.

So, I modified the plugin to simply hide all errors and warnings by inserting error_reporting(0); at the beginning of the pdf-print.php file. I suppose error_reporting(E_ERROR); would also work, because that still enables error messages, but hides all warnings.

PS: this is merely a quick fix and not a solution to the bug in the long term…