[PHP 8.1] Deprecated function: preg_match() passing null in PhpMarc\Field due to outdated caseyamcl/php-marc21 dependency

Problem/Motivation

The site logs show a PHP 8.1 deprecation warning when exporting references to the MARC format.

Steps to reproduce

1. Install Drupal 10 with PHP 8.1+
2. Install and configure bibcite
3. Create a reference
4. Export the reference to MARC format
5. Check the logs: Deprecated function: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in PhpMarc\Field->__construct()

Deprecated function: preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in PhpMarc\Field->__construct() (line 128 of /home/site/wwwroot/vendor/caseyamcl/php-marc21/lib/PhpMarc/Field.php) #0 /home/site/wwwroot/web/core/includes/bootstrap.inc(166): _drupal_error_handler_real(8192, 'preg_match(): P...', '/home/site/wwwr...', 128)
#1 [internal function]: _drupal_error_handler(8192, 'preg_match(): P...', '/home/site/wwwr...', 128)
#2 /home/site/wwwroot/vendor/caseyamcl/php-marc21/lib/PhpMarc/Field.php(128): preg_match('/^[0-9A-Za-z]{3...', NULL)
#3 /home/site/wwwroot/web/modules/contrib/bibcite/modules/bibcite_marc/src/Encoder/MarcEncoder.php(304): PhpMarc\Field->__construct()
#4 /home/site/wwwroot/web/modules/contrib/bibcite/modules/bibcite_marc/src/Encoder/MarcEncoder.php(286): Drupal\bibcite_marc\Encoder\MarcEncoder->buildEntry(Array)
#5 [internal function]: Drupal\bibcite_marc\Encoder\MarcEncoder->Drupal\bibcite_marc\Encoder\{closure}(Array)
#6 /home/site/wwwroot/web/modules/contrib/bibcite/modules/bibcite_marc/src/Encoder/MarcEncoder.php(285): array_map(Object(Closure), Array)
#7 /home/site/wwwroot/vendor/symfony/serializer/Encoder/ChainEncoder.php(43): Drupal\bibcite_marc\Encoder\MarcEncoder->encode(Array, 'marc', Array)
#8 /home/site/wwwroot/vendor/symfony/serializer/Serializer.php(418): Symfony\Component\Serializer\Encoder\ChainEncoder->encode(Array, 'marc', Array)
#9 /home/site/wwwroot/vendor/symfony/serializer/Serializer.php(143): Symfony\Component\Serializer\Serializer->encode(Array, 'marc', Array)
#10 /home/site/wwwroot/web/modules/contrib/bibcite/modules/bibcite_export/src/Controller/ExportController.php(75): Symfony\Component\Serializer\Serializer->serialize(Array, 'marc')
#11 /home/site/wwwroot/web/modules/contrib/bibcite/modules/bibcite_export/src/Controller/ExportController.php(113): Drupal\bibcite_export\Controller\ExportController->processExport(Array, Object(Drupal\bibcite\Plugin\BibciteFormat), 'bibcite_referen...')
#12 [internal function]: Drupal\bibcite_export\Controller\ExportController->export(Object(Drupal\bibcite\Plugin\BibciteFormat), 'bibcite_referen...', Object(Drupal\bibcite_entity\Entity\Reference))
#13 /home/site/wwwroot/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(123): call_user_func_array(Array, Array)
#14 /home/site/wwwroot/web/core/lib/Drupal/Core/Render/Renderer.php(637): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#15 /home/site/wwwroot/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(121): Drupal\Core\Render\Renderer->executeInRenderContext(Object(Drupal\Core\Render\RenderContext), Object(Closure))
#16 /home/site/wwwroot/web/core/lib/Drupal/Core/EventSubscriber/EarlyRenderingControllerWrapperSubscriber.php(97): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array)
#17 /home/site/wwwroot/vendor/symfony/http-kernel/HttpKernel.php(181): Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}()
#18 /home/site/wwwroot/vendor/symfony/http-kernel/HttpKernel.php(76): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1)
#19 /home/site/wwwroot/web/modules/contrib/simple_oauth/src/HttpMiddleware/BasicAuthSwap.php(68): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#20 /home/site/wwwroot/web/core/lib/Drupal/Core/StackMiddleware/Session.php(53): Drupal\simple_oauth\HttpMiddleware\BasicAuthSwap->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#21 /home/site/wwwroot/web/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(48): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#22 /home/site/wwwroot/web/core/lib/Drupal/Core/StackMiddleware/ContentLength.php(28): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#23 /home/site/wwwroot/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(201): Drupal\Core\StackMiddleware\ContentLength->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#24 /home/site/wwwroot/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(138): Drupal\page_cache\StackMiddleware\PageCache->fetch(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#25 /home/site/wwwroot/web/core/modules/page_cache/src/StackMiddleware/PageCache.php(87): Drupal\page_cache\StackMiddleware\PageCache->lookup(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#26 /home/site/wwwroot/web/modules/contrib/shield/src/ShieldMiddleware.php(263): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#27 /home/site/wwwroot/web/modules/contrib/shield/src/ShieldMiddleware.php(130): Drupal\shield\ShieldMiddleware->bypass(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#28 /home/site/wwwroot/web/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(48): Drupal\shield\ShieldMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#29 /home/site/wwwroot/web/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(51): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#30 /home/site/wwwroot/web/core/lib/Drupal/Core/StackMiddleware/AjaxPageState.php(36): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#31 /home/site/wwwroot/web/core/lib/Drupal/Core/StackMiddleware/StackedHttpKernel.php(51): Drupal\Core\StackMiddleware\AjaxPageState->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#32 /home/site/wwwroot/web/core/lib/Drupal/Core/DrupalKernel.php(741): Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#33 /home/site/wwwroot/web/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request))
#34 {main}.

Proposed resolution

The bibcite/composer.json requires caseyamcl/php-marc21: "~1.0". This version is not compatible with PHP 8.1. This constraint should be updated to a modern version, such as ^3.0, which supports PHP 8.1. This will require updating the composer.lock file as well.

Remaining tasks

N/A

User interface changes

N/A

API changes

N/A

Data model changes

N/A