Background of the issue:
PHP notice Attempt to read property "source_language_code" on null
From file sitepress-multilingual-cmsmenudashboardwpml-tm-dashboard.class.php on line 275
when opening page /wp-admin/admin.php?page=tm/menu/main.php
WPML 4.6.12
WP 6.6.1
Symptoms:
PHP notice: Attempt to read property "source_language_code" on null
Questions:
Why am I seeing a PHP notice about 'source_language_code' being null?
How can I resolve the PHP notice in WPML?
While you wait for my colleague to take over the ticket, let me try to help you with the issue quickly.
1) In order to expedite handling your support requests, can you please share WPML support debug information from your site.
- To give debug information, login to your site and go to WPML → Support. From there click on the “debug information” link at the bottom of the page. - Once on the “debug information” page, select the entire content of the text box and copy it. - Now go back to our support forum, find debug information box and paste it.
More information on the link: https://wpml.org/faq/provide-debug-information-faster-support/
2)
Can you please try next:
- Make sure you have a backup.
- Disable all other plugins and leave active only WPML plugins
- Switch to WP default theme
- Check if the issue still happens.
1) since the debug info json contains lots of data I'm not allowed to share, I can't do that.
If you let me know what specifically you need, I'm happy to provide that.
However the issue can be reproduced just using static analysis with WPML 4.6.12
2) yes.
This issue happens then too because it's obvious from the PHP types already
Bonjour je viens de perdre le nom de domaine hidden link mais tu veux comtinuer d'utiliser le plugin et mon site donc j'ai créé/acheté un.fr et transformé mon ancien site en nouveau avec .FR pour pouvoir avoir mon site ci-dessous mais mais j'ai fait le passage surproduction en cliquant sur le fait que j'ai changé de nomaine et fait ensuite la mem chose sur le site de test (dev.) et ensuite sur le passage de développement je n'ai plus l'utilisation possible du plugin, maintenant je ne peux plus utiliser le plug-in sur le site de production. Comment faire pour te récupérer et pouvoir utiliser le plug-in merci. la demande de changement de site n'apparait plus
anciens production : hidden link / exercice :hidden link.
production : hidden link / exercice :hidden link.
We were not able to reproduce this issue on our test site with PHP version 8.3.9, and since this version is still in beta mode for WordPress, we will not proceed with fixing it at this time.
>PHP 8.3.9 is a relatively newer version. According to WordPress, it is still in beta mode.
This has nothing to do with PHP 8.3.
In e.g. PHP 7 you would get a notice here too with text:
Notice: Trying to get property of non-object
>B Or adding some NULL exception checks
Your fix doesn't work bc you and whoever wrote that code doesn't understand the absolute basics of PHP.
The issue is that $language_details is null.
You need to check that $language_details is not null, not the method access.
However there are additional notices there for the other accesses - basically all places that use $language_details there need that is_null check there (e.g. the ->trid line for example)
By making
>$language_details = $this->sitepress->get_element_language_details( $post->ID, 'post_' . $post->post_type );
be null.
For basic reproduction you can just do:
$language_details = null;
there.
In a non-mock scenarion this happens bc get_element_language_details( returns null bc $this->wpdb->get_row() in this function returns null bc the query didn't find anything. This line:
