Fatal error on language detection and selection configuration form (PHP8.1) [#3344667]

Problem/Motivation

Upgrading PHP version to 8.1 produces fatal errors on language detection and selection admin form. These issues were shown as warnings on previous PHP versions. (/admin/config/regional/language/detection)

Error trace:

The website encountered an unexpected error. Please try again later.
TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in in_array() (line 138 of core/modules/language/src/Form/NegotiationConfigureForm.php).
in_array('language_interface', NULL) (Line: 138)
Drupal\language\Form\NegotiationConfigureForm->buildForm(Array, Object)
call_user_func_array(Array, Array) (Line: 534)
Drupal\Core\Form\FormBuilder->retrieveForm('language_negotiation_configure_form', Object) (Line: 281)
Drupal\Core\Form\FormBuilder->buildForm(Object, Object) (Line: 73)
Drupal\Core\Controller\FormController->getContentResult(Object, Object)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 580)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 169)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 81)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 265)
Drupal\shield\ShieldMiddleware->bypass(Object, 1, 1) (Line: 132)
Drupal\shield\ShieldMiddleware->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel->handle(Object, 1, 1) (Line: 713)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

Steps to reproduce

Install core version 9.5.3 using PHP version 8.1.5
Visit /admin/config/regional/language/detection

Proposed resolution

Update code to remove errors.

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet

Comments

Comment #1

27 February 2023 at 11:23

Hebl created an issue. See original summary.

Comment #2

hebl commented 27 February 2023 at 11:24

Issue summary:

View changes

Comment #3

hebl commented 27 February 2023 at 11:28

Title:

Fatal error on language detection and selection page (PHP8.1)

» Fatal error on language detection and selection configuration form (PHP8.1)

Comment #4

cilefen commented 27 February 2023 at 12:39

Status:	Active	» Postponed (maintainer needs more info)
Issue tags:	-language	+Needs steps to reproduce

Drupal core doesn’t have a shield module so the steps to reproduce cannot be accurate.

Comment #5

sourav_paul

Kolkata

commented 23 May 2023 at 12:36

@cilefen I also facing the same issue...

Comment #6

maxstarkenburg

he/him

commented 31 October 2023 at 19:35

Version:	9.5.x-dev	» 10.0.x-dev
Issue summary:	View changes

I'm reproducing this error by visiting /admin/config/regional/language/detection on a D10.0.11 (php 8.1.17) site that doesn't use shield. Here's what I'm seeing instead:

The website encountered an unexpected error. Please try again later.

TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in in_array() (line 137 of core/modules/language/src/Form/NegotiationConfigureForm.php).

Drupal\language\Form\NegotiationConfigureForm->buildForm()
call_user_func_array() (Line: 536)
Drupal\Core\Form\FormBuilder->retrieveForm() (Line: 283)
Drupal\Core\Form\FormBuilder->buildForm() (Line: 73)
Drupal\Core\Controller\FormController->getContentResult()
call_user_func_array() (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 580)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext() (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 163)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 74)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 58)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 692)
Drupal\Core\DrupalKernel->handle() (Line: 19)

However, I tried to reproduce on different site (9.5.11, php 8.1.24) and couldn't reproduce there (page seemed to load fine, and no dblog warnings). Haven't done a full dig into what other site differences might explain the error on the former vs. lack thereof on the latter.

Comment #7

cybercoda commented 5 December 2023 at 13:02

Status report shows "The Content Language Settings entity type needs to be installed." after upgrade from Drupal 8 to Drupal 9. Tried upgrading from Drupal 9 to Drupal 10 but still have the "The Content Language Settings entity type needs to be installed.". Went I try to visit "/admin/config/regional/language" or "/admin/config/regional/language/detection" on either site to set content language I get "The website encountered an unexpected error. Please try again later.". Watchdog shows the following error...

TypeError: in_array(): Argument #2 ($haystack) must be of type array, null given in in_array() (line 137 of /var/www/html/web/core/modules/language/src/Form/NegotiationConfigureForm.php)

#0 /var/www/html/web/core/modules/language/src/Form/NegotiationConfigureForm.php(137): in_array('language_interf...', NULL)
#1 [internal function]: Drupal\language\Form\NegotiationConfigureForm->buildForm(Array, Object(Drupal\Core\Form\FormState))
#2 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(536): call_user_func_array(Array, Array)
#3 /var/www/html/web/core/lib/Drupal/Core/Form/FormBuilder.php(283): Drupal\Core\Form\FormBuilder->retrieveForm('language_negoti...', Object(Drupal\Core\Form\FormState))
#4 /var/www/html/web/core/lib/Drupal/Core/Controller/FormController.php(73): Drupal\Core\Form\FormBuilder->buildForm(Object(Drupal\language\Form\NegotiationConfigureForm), Object(Drupal\Core\Form\FormState))
#5 [internal function]: Drupal\Core\Controller\FormController->getContentResult(Object(Symfony\Component\HttpFoundation\Request), Object(Drupal\Core\Routing\RouteMatch))
#6 /var/www/html/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array)
#7 /var/www/html/web/core/lib/Drupal/Core/Render/Renderer.php(580): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#8 /var/www/html/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(124): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure))
#9 /var/www/html/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array)
#10 /var/www/html/vendor/symfony/http-kernel/HttpKernel.php(169): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#11 /var/www/html/vendor/symfony/http-kernel/HttpKernel.php(81): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1)
#12 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/Session.php(58): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#13 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(48): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#14 /var/www/html/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(106): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#15 /var/www/html/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(85): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#16 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(48): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#17 /var/www/html/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(51): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#18 /var/www/html/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#19 /var/www/html/web/core/lib/Drupal/Core/DrupalKernel.php(718): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#20 /var/www/html/web/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#21 {main}

Comment #8

5 December 2023 at 13:02

Version:

10.0.x-dev

» 11.x-dev

Drupal core is moving towards using a “main” branch. As an interim step, a new 11.x branch has been opened, as Drupal.org infrastructure cannot currently fully support a branch named main. New developments and disruptive changes should now be targeted for the 11.x branch. For more information, see the Drupal core minor version schedule and the Allowed changes during the Drupal core release cycle.

Comment #9

quietone commented 29 September 2024 at 23:36

Issue tags:

+Bug Smash Initiative

Is this error preventing any site from upgrading to a supported version of Drupal?

If you are experiencing this problem on a supported version of Drupal reopen the issue, by setting the status to 'Active', and provide complete steps to reproduce the issue (starting from "Install Drupal core")

If we don't receive additional information to help with the issue, it may be closed after three months.

Thanks!

Comment #10

acbramley commented 4 March 2025 at 01:54

Status:

Postponed (maintainer needs more info)

» Closed (cannot reproduce)

Doesn't appear to be any steps to reproduce from the latest version of core. Closing as per above.

Comment #11

bbox1 commented 8 July 2025 at 19:51

One of our devs encountered this. I can't say for sure how to recreate, but disabling and re-enabling the language module fixed our use case on a Drupal 10.5.1 site.

Best of luck!

Fatal error on language detection and selection configuration form (PHP8.1)