In PHP 8, they would generate E_DEPRECATED like: Deprecated: Required parameter $param2 follows optional parameter $param1 in filename.php on line 123
List of all files with an issue:
AbuseFilterTest.php Adder.php AJAXPoll.class.php AthenaHooks.php Attribute.php BouquetSkinNavigationService.php Comment.php Contributors.php CreatedPagesListTestBase.php CreateNotification.php DataModelBackend.LBFactory.php DataModelBackend.php DeskMessMirroredSkinNavigationService.php DiscussionThreading.class.php DPLListMode.php DynamicPageListInclude.php Editor.php EDUtils.php EmailDomain.php ExtractFeatures.php FallbackRunnerTest.php FixedHeaderTable.php FlickrAPIUtils.php GamepressSkinNavigationService.php GraphViz.php KeywordFeatureAssertions.php KeywordNodeVisitorTest.php LastUserLogin.php MockPageUpdater.php OfflineImportLexicon_body.php OmegaWikiDatabaseAPI.php owAddAnnotation.php PageContentBuilderTest.php PermissionsTest.php QuizTest.php RegexBlockData.php RequestLoggerTest.php SelectCategory_body.php SportsTeams.class.php TabberHooks.php Tabs.php TimelineHashTest.php UserSystemMessage.php view.BaseElement.php WFForum.php WikiArticleFeeds_body.php WikiDataAPI.php WikiForumGui.php WikiPage.php YetAnotherKeywords.php