lacks support for PHP 8.2

[Zweihorn]

Please consider support for PHP 8.2 by upgrading mpdf/mpdf in composer.lock to v8.1.6+ as of 2023-03-23 or newer at your earliest deliberation.

Your version is v8.0.17 as of 2022-01-20. Current version of mpdf seems to be v8.2.3 as of 2024-03-11

PHP 8.2 is supported as of mPDF v8.1.3

ref https://github.com/mpdf/mpdf#php-versions-and-extensions

Only PHP 7.4 up to PHP 8.1 are supported by dw2pdf plugin.

ref https://www.dokuwiki.org/plugin:dw2pdf#download_and_installation

Furthermore, stable Debian Bookworm supports PHP 8.2 since 2023-06-10.

[CiTRO33]

PHP 8.3 would be nice too.
Are any plans to upgrade?

[felix-sterzelmaier-concat]

Please update the used mpdf version

[dipohl]

as PHP 8.1 active support has ended a long time ago and EOL is now in sight (https://www.php.net/supported-versions.php) this needs to be done urgently..

[lomon]

PHP 8.4 is supported as of mPDF v8.2.5
PHP 8.5 is supported as of mPDF v8.2.6
https://github.com/mpdf/mpdf

dokuwiki-plugin-dw2pdf - error messages with PHP 8.4
"Warning: unserialize(): Extra data starting at offset 100 of 103 bytes in /dokuwiki-data/lib/plugins/dw2pdf/vendor/mpdf/mpdf/src/Mpdf.php on line 9082"

Please support PHP 8.4 or 8.5 directly.

PHP 8.4 official active support until 31 Dec 2026
https://www.php.net/supported-versions.php

[Klap-in]

Update is welcome.

some notes:

• Please consider the change to the image decorator. However ideally, this is addressed more thoroughly as discussed in Update mPDF to 8.0.17 #499 as well. (bd07ae4#comments)

• @eduardomozart noted that php7.4 was not supported above 8.0.17, but I cannot find that in the documentation of mPDF it self. As current version of DokuWiki still supports 7.4, I wonder if it is know why php7.4 did not work? As php8 is recommended, I propose to make new version over dw2pdf based on more recent mPDF version.

• At least on the wiki page of the plugin we can offer a link to the release of dw2pdf based on the mpdf 8.0.17 version as fallback.

• If mPDF v8.2.6 is a too big step due to backward compatiblity issues (i do not expect yet), maybe an extra version of dw2pdf based on another in-between version is helpful.

[eduardomozart]

Hello @Klap-in, thank you for marking me in this issue.
I do believe that mPDF upgrade is needed, but the dw2pdf plug-in should work as expected on PHP 8.2 and 8.3. I use it in my wiki (2025-05-14b "Librarian") with these versions and couldn't find any issues after PR #499.
The statement that mPDF >= 8.0.17 requires PHP 8 isn't officially documented because it's not a mPDF limitation per se, but the psr/log dependency on newer mPDF versions, which requires at least PHP 8.

[splitbrain]

just as heads up. I'm working on the plugin for a customer at CosmoCode and will also update mpdf for that. mpdf changed how the image processor is instantiatiated and there is currently no good way to inject a new different class. I will probably have to monkey patch mpdf to make it possible again. no eta for a release yet (we may make it available earlier via our partner program - but I don't know yet)