Title: Non-numeric value PHP warning
Last modified: November 5, 2021

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# Non-numeric value PHP warning

 *  Resolved [arnolp](https://wordpress.org/support/users/arnolp/)
 * (@arnolp)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/non-numeric-value-php-warning/)
 * Plugin Version: 2.2.9
    WP Version 5.8.1 PHP version : 7.4 Hi, my php logs are
   full of this `2021/11/05 13:07:46 [error] 15605#15605: *676952 FastCGI sent in
   stderr: "PHP message: PHP Warning: A non-numeric value encountered in wp-content/
   plugins/pdf-print/mpdf/mpdf.php on line 30649PHP message: PHP Warning: A non-
   numeric value encountered in wp-content/plugins/pdf-print/mpdf/mpdf.php on line
   30649" while reading response header from upstream`
 * can it be fixed ?
    thanks !

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Support [andrewsupport](https://wordpress.org/support/users/andrewsupport/)
 * (@andrewsupport)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/non-numeric-value-php-warning/#post-15046569)
 * Hi,
 * Could you please upgrade MPDF library on the PDF&Print settings page if you didn’t
   do it yet.
 * Please follow the next instructions:
    1) Go to PDF & Print settings page; 2) 
   Open the “Misc” tab; 3) Click the “Upgrade” button; 4) Test the result.
 *  Plugin Support [andrewsupport](https://wordpress.org/support/users/andrewsupport/)
 * (@andrewsupport)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/non-numeric-value-php-warning/#post-15114288)
 * Hi,
 * Since there is no reply from you, we consider this topic as resolved. We hope
   you’ve found the solution. If you have any questions, please feel free to contact
   us via our Help Center – [https://support.bestwebsoft.com/](https://support.bestwebsoft.com/).
 *  [stanxxx](https://wordpress.org/support/users/stanxxx/)
 * (@stanxxx)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/non-numeric-value-php-warning/#post-15214697)
 * Hello,
 * I had the same question, followed your recommendation and problem is fixed 🙂

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Non-numeric value PHP warning’ is closed to new replies.

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## Tags

 * [PHP Warning](https://wordpress.org/support/topic-tag/php-warning/)

 * 3 replies
 * 3 participants
 * Last reply from: [stanxxx](https://wordpress.org/support/users/stanxxx/)
 * Last activity: [4 years, 4 months ago](https://wordpress.org/support/topic/non-numeric-value-php-warning/#post-15214697)
 * Status: resolved