PHP Deprecated: substr_count(): Passing null to parameter #1 ($haystack) of type string is deprecated
Open, Needs TriagePublicPRODUCTION ERROR
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Assigned To

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Authored By

	Aklapper
	Tue, Jan 20, 1:50 PM

Description

Error

service.version: 1.46.0-wmf.11
timestamp: 2026-01-20T12:18:46.714Z
labels.phpversion: 8.3.29
trace.id: 582853fb-381d-425a-8917-02e30f8b6996
Find trace.id in Logstash

labels.normalized_message

[{reqId}] {exception_url}   PHP Deprecated: substr_count(): Passing null to parameter #1 ($haystack) of type string is deprecated

Frame	Location	Call
from	/srv/mediawiki/php-1.46.0-wmf.11/includes/libs/StringUtils/StringUtils.php(318)
#0	[internal function]	MediaWiki\Exception\MWExceptionHandler::handleError(int, string, string, int)
#1	/srv/mediawiki/php-1.46.0-wmf.11/includes/libs/StringUtils/StringUtils.php(318)	substr_count(null, string)
#2	/srv/mediawiki/php-1.46.0-wmf.11/includes/Parser/BlockLevelPass.php(194)	Wikimedia\StringUtils\StringUtils::explode(string, null)
#3	/srv/mediawiki/php-1.46.0-wmf.11/includes/Parser/BlockLevelPass.php(52)	MediaWiki\Parser\BlockLevelPass->execute()
#4	/srv/mediawiki/php-1.46.0-wmf.11/includes/Parser/Parser.php(1635)	MediaWiki\Parser\BlockLevelPass::doBlockLevels(null, bool)
#5	/srv/mediawiki/php-1.46.0-wmf.11/includes/Parser/Parser.php(627)	MediaWiki\Parser\Parser->internalParseHalfParsed(null, bool, bool)
#6	/srv/mediawiki/php-1.46.0-wmf.11/includes/Language/MessageParser.php(129)	MediaWiki\Parser\Parser->parse(null, MediaWiki\Title\Title, MediaWiki\Parser\ParserOptions, bool)
#7	/srv/mediawiki/php-1.46.0-wmf.11/includes/Language/Message/Message.php(1490)	MediaWiki\Language\MessageParser->parse(string, MediaWiki\Title\Title, bool, bool, LanguageEn)
#8	/srv/mediawiki/php-1.46.0-wmf.11/includes/Language/Message/Message.php(1071)	MediaWiki\Message\Message->parseText(string)
#9	/srv/mediawiki/php-1.46.0-wmf.11/includes/Language/Message/Message.php(1111)	MediaWiki\Message\Message->format(string)
#10	/srv/mediawiki/php-1.46.0-wmf.11/includes/Actions/InfoAction.php(166)	MediaWiki\Message\Message->__toString()
#11	/srv/mediawiki/php-1.46.0-wmf.11/includes/Actions/FormlessAction.php(37)	MediaWiki\Actions\InfoAction->onView()
#12	/srv/mediawiki/php-1.46.0-wmf.11/includes/Actions/ActionEntryPoint.php(739)	MediaWiki\Actions\FormlessAction->show()
#13	/srv/mediawiki/php-1.46.0-wmf.11/includes/Actions/ActionEntryPoint.php(510)	MediaWiki\Actions\ActionEntryPoint->performAction(MediaWiki\Page\Article, MediaWiki\Title\Title)
#14	/srv/mediawiki/php-1.46.0-wmf.11/includes/Actions/ActionEntryPoint.php(144)	MediaWiki\Actions\ActionEntryPoint->performRequest()
#15	/srv/mediawiki/php-1.46.0-wmf.11/includes/MediaWikiEntryPoint.php(181)	MediaWiki\Actions\ActionEntryPoint->execute()
#16	/srv/mediawiki/php-1.46.0-wmf.11/index.php(44)	MediaWiki\MediaWikiEntryPoint->run()
#17	/srv/mediawiki/w/index.php(3)	require(string)
#18	{main}

Impact

Low.

Notes

Details

MediaWiki Version: 1.46.0-wmf.11
Request URL: https://fi.wikipedia.org/w/index.php?action=info&title=Imatra

Event Timeline

Aklapper created this task.Tue, Jan 20, 1:50 PM

Aklapper added a project: PHP 8.1 support.

Aklapper changed Request URL from https://fi.wikipedia.org/w/index.php?action=info&title=*&uselang=* to https://fi.wikipedia.org/w/index.php?action=info&title=Imatra.Thu, Jan 22, 3:03 PM

brennen added a project: Content-Transform-Team.Thu, Jan 29, 4:36 PM

brennen moved this task from Untriaged to Jan–Mar 2026 on the Wikimedia-production-error board.

cscott edited projects, added Content-Transform-Team (Work In Progress), Essential-Work; removed Content-Transform-Team.Thu, Feb 5, 3:10 PM

PHP Deprecated: substr_count(): Passing null to parameter #1 ($haystack) of type string is deprecatedOpen, Needs TriagePublicPRODUCTION ERRORActions