I use this module in conjunction with content_access module. After upgrade to PHP 8.1 debug log reported as below:
Deprecated function: mb_strlen(): Passing null to parameter #1 ($string) of type string is deprecated in Drupal\Core\Form\FormValidator->performRequiredValidation() (line 336 of core/lib/Drupal/Core/Form/FormValidator.php).
Drupal\Core\Form\FormValidator->performRequiredValidation(Array, Object) (Line: 246)
Drupal\Core\Form\FormValidator->doValidateForm(Array, Object) (Line: 238)
Drupal\Core\Form\FormValidator->doValidateForm(Array, Object) (Line: 238)
Drupal\Core\Form\FormValidator->doValidateForm(Array, Object) (Line: 238)
Drupal\Core\Form\FormValidator->doValidateForm(Array, Object, 'content_access_page') (Line: 118)
Drupal\Core\Form\FormValidator->validateForm('content_access_page', Array, Object) (Line: 588)
Drupal\Core\Form\FormBuilder->processForm('content_access_page', Array, Object) (Line: 320)
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: 564)
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: 67)
Drupal\simple_oauth\HttpMiddleware\BasicAuthSwap->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: 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: 709)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
At first I thought the issue is related to content_access module itself, however after a deep dive into debugging I have found out it's actually a ACL fault. In acl.admin.inc, line 134 you can find a value may be set to NULL ( $form['add']['#value'] = NULL; ), which is eventually getting passed to a form element and is causing a trouble. Attaching a small patch to fix it.
1. Install content_access and acl module (and make sure your PHP is 8.1)
2. Go to /admin/structure/types/manage/{your_content_type}/access
3. Put a tick into Enable per content node access control settings checkbox and save settings
4. Go to node/{your_node_id}/access (node should belong to CT modified above)
5. In Grant view access section select any user and press Add User
6. After user is added you should see error reported above
The patch is attached.
Fixed
1.0
Code
The issue particularly affects sites running on PHP version 8.1.0 or later.
Not all content is available!
It's likely this issue predates Contrib.social: some issue and comment data are missing.
It looks like it only has been committed to the development version.
Any chance of getting this committed to a stable release?
Automatically closed - issue fixed for 2 weeks with no activity.