Manual:Configuration settings

This is an index of all supported configuration settings based on the MainConfigSchema.php (or DefaultSettings.php before MediaWiki 1.39) file.

Never edit MainConfigSchema.php; add appropriate lines to LocalSettings.php instead and amend them as appropriate.

If you cannot find a configuration setting here, see if it is defined in DefaultSettings.php. The variable should have some documentation there.

Listed alphabetically | Listed by function | Category:MediaWiki configuration settings

• $wgSitename – The name of the site.
• $wgVersion (deprecated in 1.35) – MediaWiki version number.

• $wgAutoloadLocalClasses – Array mapping class names to filenames, for autoloading.
• $wgConf – Create a site configuration object. Not used for much in a default install.

• $IP – The full path to the installation directory.
• $wgActionPaths – Paths for various user actions. Used to make URLs prettier.
• $wgAppleTouchIcon – Optional URL to an icon to use when bookmarking to the home screen on Apple handheld devices
• $wgArticlePath – The base URL used to create article links.
• $wgAssumeProxiesUseDefaultProtocolPorts – When the wiki is running behind a proxy and this is set to true, assumes that the proxy exposes the wiki on the standard ports.
• $wgBaseDirectory – Absolute filesystem path of the root directory of the MediaWiki installation.
• $wgCanonicalServer – Canonical URL of the server, to use in IRC feeds, notification emails, etc.
• $wgConfigRegistry – Registry of factory functions to create config objects
• $wgExtensionAssetsPath – URL to extensions directory.
• $wgExtensionDirectory – The file system path to the extensions directory.
• $wgFavicon – The URL of the site favicon.
• $wgFFmpegLocation – Executable name of FFmpeg client.
• $wgFFprobeLocation – Executable name of FFprobe.
• $wgFileCacheDirectory – Directory where the cached pages will be saved when using server-side caching.
• $wgForceHTTPS – Redirect insecure HTTP requests to HTTPS.
• $wgHttpsPort – Port where you have HTTPS running. Supports HTTPS on non-standard ports.
• $wgImgAuthPath – The base path for img_auth.php.
• $wgLoadScript – The URL path to load.php.
• $wgLocalStylePath – Same as $wgStylePath , but shouldn't point to an external domain.
• $wgLogoHD (removed in 1.42) – URLs for HD versions of the site logo.
• $wgLogos – The URL path to various wiki logos.
• $wgLogo – The URL of the site logo.
• $wgMainPageIsDomainRoot – Controls if the main page should be served as the domain root.
• $wgReferrerPolicy – Value for the referrer policy meta tag.
• $wgRestPath – The URL path to rest.php.
• $wgScriptPath – The base URL path.
• $wgScript – The URL of index.php.
• $wgServerName – The name of the server without the protocol.
• $wgServer – The base URL of the server.
• $wgStyleDirectory – The file system path to the skins directory.
• $wgStylePath – The URL of the skins directory.
• $wgStyleSheetPath (removed in 1.38) – Do not set $wgStyleSheetPath. Use $wgStylePath instead.
• $wgThumbPath – The base path for thumb_handler.php.
• $wgTmpDirectory – The path of the temporary directory.
• $wgUploadBaseUrl – The base URL for uploaded images if shared upload directory isn't to be used
• $wgUploadDirectory – The file system path of the upload directory.
• $wgUploadPath – The path segment of the upload directory.
• $wgUploadStashScalerBaseUrl (deprecated in 1.36) – To enable remote on-demand scaling, set this to the thumbnail base URL.
• $wgUsePathInfo – Whether to use 'pretty' URLs.

See also file/image upload path settings.

See also skins path settings.

Uploads have to be specially set up to be secure.

• $wgAllowCopyUploads – Allow uploads from URLs as well as local files.
• $wgAllowJavaUploads (removed in 1.39) – Allow Java archive uploads.
• $wgAttemptFailureEpoch – Bump this to quickly retry thumbnail creation failures.
• $wgCheckFileExtensions – Check if the file extension is allowed on upload.
• $wgCopyUploadAllowOnWikiDomainConfig – If true, the value of $wgCopyUploadsDomains will be merged with the contents of MediaWiki:Copyupload-allowed-domains.
• $wgCopyUploadProxy – HTTP proxy to use for copy upload requests.
• $wgCopyUploadsDomains – Limit $wgAllowCopyUploads to a specific list of domains
• $wgCopyUploadsFromSpecialUpload – Add an interface to Special:Upload to enable uploading from URLs
• $wgCopyUploadTimeout – HTTP timeout (in seconds) for upload by URL
• $wgDeletedDirectory – What directory to place deleted uploads in.
• $wgDirectoryMode – Default chmod permission value for newly created directories.
• $wgDisableUploadScriptChecks – Whether to disable the upload system's checks for HTML/JavaScript.
• $wgEnableAsyncUploads – Enable deferred upload tasks that use the job queue.
• $wgEnableAsyncUploadsByURL (introduced in 1.42) – Enable the async processing of upload by url in Special:Upload.
• $wgEnableUploads – Allow images and other files to be uploaded through the wiki.
• $wgFileBackends – File backend structure configuration.
• $wgFileBlacklist (removed in 1.37) – Files with these extensions will never be allowed as uploads.
• $wgProhibitedFileExtensions – Files with these extensions will never be allowed as uploads.
• $wgFileExtensions – This is the list of preferred extensions for uploading files. Uploading files with extensions not in this list will trigger a warning.
• $wgHashedUploadDirectory – If true, uses the /a/ab/foo.jpg directory structure.
• $wgIllegalFileChars (deprecated in 1.41) – Override the default list of illegal characters in file names.
• $wgImagePreconnect – Add a preconnect link for browsers to a remote FileRepo host..
• $wgImgAuthDetails – Display reason access to uploaded file was denied to users (img_auth only)
• $wgImgAuthUrlPathMap – Map of relative URL directories to match to internal mwstore:// base storage paths.
• $wgLocalFileRepo – A single repository structure for the local repository.
• $wgLockManagers – Array of configuration arrays for each lock manager.
• $wgMaxUploadSize – Maximum size of uploaded files (in bytes)
• $wgMediaInTargetLanguage – Whether translatable media (currently, only SVG images) should be shown in page's target language
• $wgMinUploadChunkSize – Minimum upload chunk size, in bytes.
• $wgNativeImageLazyLoading – Toggles native image lazy loading, via the "loading" attribute.
• $wgParserTestMediaHandlers – Media handler overrides for parser tests (they don't need to generate actual thumbnails, so a mock will do)
• $wgStrictFileExtensions – Toggle whether users may upload files not covered by $wgFileExtensions .
• $wgThumbnailEpoch – If rendered thumbnail files are older than this timestamp, they will be re-rendered on demand as if the file didn't already exist.
• $wgUploadDialog – Configuration for Upload dialog and the files uploaded through it.
• $wgUploadMaintenance – To disable file delete/restore temporarily.
• $wgUploadMissingFileUrl – Point wikilinks to missing files ("red file links") to a custom URL.
• $wgUploadNavigationUrl – Point the upload navigation link in the sidebar to a custom URL.
• $wgUploadSizeWarning – Warn if uploaded files are larger than this.
• $wgUploadStashMaxAge – The maximum age of temporary (incomplete) uploaded files.

These settings are kept for backward compatibility, see $wgForeignFileRepos for the new setting, or $wgUseInstantCommons if you only need read access to images on Commons.

• $wgCacheSharedUploads – Cache shared metadata in memcached.
• $wgForeignFileRepos – An array of repository structure for foreign repositories.
• $wgForeignUploadTargets – Configuration for foreign upload targets for the Upload dialog .
• $wgHashedSharedUploadDirectory – Whether to hash the shared upload directory.
• $wgRepositoryBaseUrl – Base URL for a repository wiki.
• $wgSharedUploadDBname – DB name with metadata about shared directory.
• $wgSharedUploadDBprefix – DB prefix for shared image uploads
• $wgSharedUploadDirectory – Path on the file system where shared uploads can be found.
• $wgSharedUploadPath – Full path to the web server where shared uploads can be found.
• $wgUseSharedUploads – Whether to look in a shared repository when a file is not found locally
• $wgFetchCommonsDescriptions – Whether to fetch commons image description pages and display them on the local wiki.

• $wgMimeDetectorCommand – Sets an external MIME detector program.
• $wgMimeInfoFile – Sets the MIME type info file to be used by MimeAnalyzer.php .
• $wgMimeTypeFile – Sets the MIME type definition file to be used by MimeAnalyzer.php .
• $wgTrivialMimeDetection – Switch for trivial MIME detection.

Warning:

↑This is not a configuration setting, but a global state variable. It should be used solely by thumb.php !

• $wgVerifyMimeType – Determines if the MIME type of uploaded files should be checked.
• $wgVerifyMimeTypeIE (removed in 1.40) – Determines whether extra checks for Internet Explorer type detection should be applied.
• $wgMimeTypeBlacklist (removed in 1.37) – MIME types to disallow if $wgVerifyMimeType is enabled.
• $wgMimeTypeExclusions – MIME types to disallow if $wgVerifyMimeType is enabled.
• $wgXMLMimeTypes – An array of XML MIME types we can detect via MimeMagic

See also: Manual:MIME type detection

• $wgAllowImageMoving (removed in 1.36) – Enable file renaming.
• $wgCustomConvertCommand – Use another resizing converter, e.g. GraphicMagick.
• $wgEnableAutoRotation – Whether to enable image auto-rotation based on EXIF information
• $wgExiftool – Path to exiftool binary. Used for lossless ICC profile swapping.
• $wgExiv2Command – Path to the exiv2 executable.
• $wgGalleryOptions – Default settings for the ‎<gallery> tag.
• $wgIgnoreImageErrors – If true, inline scaled images will still produce ‎<img> tags ready for output instead of showing an error message.
• $wgImageLimits – A list of user-selectable limits for the image thumbnail size on image description pages.
• $wgJpegQuality – When scaling a JPEG thumbnail, this is the quality we request from the backend.
• $wgJpegTran – Path to jpegtran, for lossless JPEG rotation.
• $wgMaxImageArea – Don't thumbnail an image if it will use too much working memory.
• $wgMediaHandlers – Plugins for media file type handling.
• parameters for upload path
• $wgTrustedMediaFormats – List of trusted media-types and MIME types.

See also: Manual:Configuring file uploads

• $wgDjvuDump – Path to the djvudump executable.
• $wgDjvuOutputExtension – File extension for the DjVu post processor output.
• $wgDjvuPostProcessor – Path of the DjVu post-processor.
• $wgDjvuRenderer – Path of the ddjvu DjVu renderer.
• $wgDjvuToXML (removed in 1.37) – Path of the djvutoxml executable.
• $wgDjvuTxt – Path of the djvutxt DjVu text extraction utility.
• $wgDjvuUseBoxedCommand (introduced in 1.42) – Whether to use BoxedCommand or not.
• $wgShellboxShell (introduced in 1.42) – The POSIX-compatible shell to use when running scripts.

• $wgShowEXIF – Show EXIF data at the end of file description pages.
• $wgUpdateCompatibleMetadata – Whether to automatically update the img_metadata field if it is outdated but compatible with the current version.

• $wgImageMagickConvertCommand – The command used to invoke ImageMagick.
• $wgImageMagickTempDir – Temporary directory used for ImageMagick.
• $wgMaxInterlacingAreas – Array of max pixel areas for interlacing per MIME type.
• $wgSharpenParameter – Sharpening parameter to ImageMagick.
• $wgSharpenReductionThreshold – Reduction in linear dimensions below which sharpening will be enabled.
• $wgUseImageMagick – Set to true to use ImageMagick for image resizing.
• $wgUseTinyRGBForJPGThumbnails – Swaps JPGs that use sRGB ICC profile with TinyRGB profile

• $wgAllowTitlesInSVG (removed in 1.35) – Allow ‎<title> tag in SVG files.
• $wgSVGConverter – A key from $wgSVGConverters to use as converter.
• $wgSVGConverterPath – Path to the directory of the SVG converter being used.
• $wgSVGConverters – List of paths to Scalable Vector Graphics (SVG) converters.
• $wgSVGMaxSize – Don't scale a SVG larger than this unless its native size is larger.
• $wgSVGMetadataCutoff – Don't read SVG metadata beyond this point.
• $wgSVGNativeRendering (introduced in 1.41) – Whether native rendering by the browser agent is allowed.
• $wgSVGNativeRenderingSizeLimit (introduced in 1.41) – Limit on an SVG file's size for it to be rendered by the client, in bytes.

• $wgUseImageResize – Whether to enable dynamic server-side image resizing (thumbnailing)
• $wgGenerateThumbnailOnParse – Allow thumbnail rendering on page view.
• $wgMaxAnimatedGifArea – Force thumbnailing of animated GIFs above this size to a single frame instead of an animated thumbnail.
• $wgSharedThumbnailScriptPath – Same as $wgThumbnailScriptPath , but for shared uploads.
• $wgShowArchiveThumbnails – Whether to show thumbnails for old images on the image description page.
• $wgTiffThumbnailType – The format and MIME type to convert TIFF images to.
• $wgThumbnailNamespaces (introduced in 1.40) – Defines what namespaces thumbnails will be displayed for in Special:Search.
• $wgThumbnailScriptPath – Path to thumb.php , if you want thumbnail generation on the fly.
• $wgThumbUpright – Scaling factor applied to width of images when parameter 'upright' is used.
• $wgThumbLimits – List of image thumbnail sizes users can pick from.
• $wgResponsiveImages – Whether or not to output high-resolution images for high-DPI displays
• $wgThumbnailBuckets – List of intermediary thumbnail sizes to use to speed up thumbnail rendering.
• $wgThumbnailMinimumBucketDistance – Minimal distance between intermediary thumbnail size and target thumbnail size.
• $wgJpegPixelFormat – Sets YUV chroma subsampling mode for JPEG thumbnails
• $wgUploadThumbnailRenderHttpCustomHost – When using the "http" $wgUploadThumbnailRenderMethod, lets one specify a custom Host HTTP header.
• $wgUploadThumbnailRenderHttpCustomDomain – When using the "http" $wgUploadThumbnailRenderMethod, lets one specify a custom domain to send the HTTP request to.
• $wgUploadThumbnailRenderMap – An array of thumbnail widths to be rendered at upload time.
• $wgUploadThumbnailRenderMethod – The method through which the thumbnails will be prerendered for the entries in $wgUploadThumbnailRenderMap.

• $wgAntivirus – Internal name of virus scanner.
• $wgAntivirusRequired – Determines if a failed virus scan will cause the file to be rejected.
• $wgAntivirusSetup – Configuration for different virus scanners.

See also User Access: $wgEmailConfirmToEdit

• $wgAdditionalMailParams – Additional email parameters, will be passed as the last argument to mail() PHP function call.
• $wgAllowHTMLEmail – Set to true to enable HTML emails.
• $wgEmailAuthentication – Set to true to enable email authentication (confirmation) for this wiki. Except for password reminder emails, email functions only work for authenticated email addresses.
• $wgEmergencyContact – Site admin email address
• $wgEnableEmail – Set to true to enable basic email features.
• $wgEnableSpecialMute – Set to true to enable the Special Mute page.
• $wgEnableUserEmailBlacklist (removed in 1.37) – Set to true to enable user-to-user email blacklist.
• $wgEnableUserEmailMuteList – Set to true to enable user-to-user email mutelist.
• $wgEnableUserEmail – Set to true to enable user-to-user email.
• $wgNewPasswordExpiry – The time, in seconds, after which an emailed temporary password expires.
• $wgNoReplyAddress – Reply-to address for automatically generated emails.
• $wgPasswordExpirationDays – The number of days that a user's password is good for.
• $wgPasswordExpireGrace – The number of seconds after a user's password expires during which they can log in without a password change.
• $wgPasswordReminderResendTime – Minimum time, in hours, which must elapse between password reminder emails.
• $wgPasswordSender – Password reminder email address.
• $wgSMTP – For using a direct (authenticated) SMTP server connection.
• $wgUserEmailConfirmationTokenExpiry – The time, in seconds, after which a email address confirmation token expires.
• $wgUserEmailUseReplyTo – Set to true to put the sending user's email in a Reply-To header instead of From.

Actual notifications for each user are defined in the options. You can change defaults with $wgDefaultUserOptions .

• $wgEnotifFromEditor – Whether to make email notifications appear to come from the user who makes the edit
• $wgEnotifImpersonal – Send a generic mail instead of a personalised mail for each user.
• $wgEnotifMaxRecips – Maximum number of users to mail at once when using impersonal mail.
• $wgEnotifMinorEdits – Set to true to allow sending email notification also for edits marked as minor edits
• $wgEnotifRevealEditorAddress – Set to true to insert the page editor's email address into the email notifications Reply-To address
• $wgEnotifUseRealName – Use real name instead of username in email "from" field.
• $wgEnotifUserTalk – Enable email notifications for edits on users' talk pages.
• $wgEnotifWatchlist – Set to true to allow the email notification for watched pages
• $wgUseEnotif – Overall "use Enotif" setting
• $wgUsersNotifiedOnAllChanges – Array of usernames who will be sent a notification email for every change which occurs on a wiki.

• $wgCommentTempTableSchemaMigrationStage (introduced in 1.40) (removed in 1.41) – Comment temp tables schema migration stage.
• $wgDataCenterUpdateStickTTL – After a state-changing request is done by a client, this determines how many seconds that client should keep using the master datacenter.
• $wgDBadminpassword – Password for $wgDBadminuser.
• $wgDBadminuser – Username of database administrator.
• $wgDBcompress – Whether to use compression in DB connection.
• $wgDBDefaultGroup – Default group to use when getting database connections. For use by maintenance scripts.
• $wgDBerrorLogTZ – Timezone to use in the error log.
• $wgDBerrorLog – File to log database errors to.
• $wgDBmwschema – Schema that stores the MediaWiki tables in.
• $wgDBname – Name of the database.
• $wgDBpassword – The password for $wgDBuser .
• $wgDBprefix – Table name prefix.
• $wgDBserver – Host name or IP address of database server.
• $wgDBssl – Whether to use SSL in DB connection.
• $wgDBStrictWarnings (introduced in 1.42) – Check for warnings after DB queries and throw an exception if an unacceptable warning is detected.
• $wgDBtype – Type of database.
• $wgDBuser – Database username.
• $wgDBWindowsAuthentication (removed in 1.35) – Use Integrated Windows Authentication rather than $wgDBuser /$wgDBpassword combo.
• $wgExternalLinksSchemaMigrationStage (introduced in 1.40) (removed in 1.41) – externallinks table schema migration stage.
• $wgExternalLinksDomainGaps (introduced in 1.41) – Gaps in the externallinks table for certain domains.
• $wgLocalDatabases – Other wikis on this site, can be administered from a single developer account.
• $wgMaxExecutionTimeForExpensiveQueries – Max execution time for queries of several expensive special pages such as RecentChanges in milliseconds.
• $wgMultiContentRevisionSchemaMigrationStage (removed in 1.39) – RevisionStore table schema migration stage (content, slots, content_models & slot_roles tables).
• $wgPageLinksSchemaMigrationStage (introduced in 1.41) – The pagelinks table schema migration stage, for normalising pl_namespace and pl_title fields.
• $wgSearchTypeAlternatives – Alternative search types.
• $wgSearchType – Type of search used for the wiki.
• $wgTemplateLinksSchemaMigrationStage (removed in 1.43) – templatelinks table schema migration stage, for normalizing tl_namespace and tl_title fields.
• $wgVirtualDomainsMapping (introduced in 1.41) – Mapping of virtual database domains to actual databases.

• $wgDBservers – Settings for the database load balancer (database servers and load ratios).
• $wgLBFactoryConf – Configuration for the ILBFactory service
• $wgMasterWaitTimeout (deprecated in 1.24) – How long to wait for a slave to catch up to the master.
• $wgSlaveLagCritical (removed in 1.36) – If lag is higher than this value, show a more obvious warning than $wgSlaveLagWarning .
• $wgSlaveLagWarning (removed in 1.36) – If lag is higher than this value, show a warning in some special pages (like watchlist).
• $wgDatabaseReplicaLagCritical – If lag is higher than this value, show a more obvious warning than $wgDatabaseReplicaLagWarning .
• $wgDatabaseReplicaLagWarning – If lag is higher than this value, show a warning in some special pages (like watchlist).

• $wgDBTableOptions – MySQL table options to use during installation or update.
• $wgSQLMode – Value for the MySQL sql_mode parameter

• $wgDBport – Database port. Only used by PostgreSQL.

• $wgSQLiteDataDir – To override default SQLite data directory.

• $wgSharedDB – The name of the shared database.
• $wgSharedPrefix – Table prefix to use on the shared database tables.
• $wgSharedTables – List of database tables (without prefixes) to share when $wgSharedDB is enabled.
• $wgSharedSchema – The table schema for the shared database

• $wgExtPGNewFields (removed in 1.36) – Extension defined fields to be added to existing tables
• $wgExtNewTables (removed in 1.36) – Extension Defined tables to be added on schema change
• $wgExtNewFields (removed in 1.36) – Extension defined fields to be added to existing tables
• $wgExtNewIndexes (removed in 1.36) – Extension defined indexes to be added to existing tables
• $wgExtPGAlteredFields (removed in 1.36) – Extension defined columns to be altered in tables
• $wgExtModifiedFields (removed in 1.36) – Extension defined fields to change existing tables

• $wgCompressRevisions – Compress new page revisions if possible
• $wgContentHandlers – Mapping of content type handlers
• $wgContentHandlerTextFallback (removed in 1.42) – How to react if a plain text version of a non-text Content object is requested using ContentHandler::getContentText()
• $wgDefaultExternalStore – Default external store for new revisions.
• $wgDiffEngine – Specify the difference engine to use.
• $wgEnableRemoteBagOStuffTests – If this is set to true, phpunit will run integration tests against remote caches defined in $wgObjectCaches .
• $wgExternalDiffEngine – Name of the external diff engine to use.
• $wgExternalServers – Shortcut for setting $wgLBFactoryConf["externalClusters"].
• $wgExternalStores – List of enabled ExternalStore protocols.
• $wgNamespaceContentModels – Content types defined for a given namespace
• $wgPageLanguageUseDB – Allows to change the page language for MediaWiki pages
• $wgRevisionCacheExpiry – Cache extracted revision text in MemCached.
• $wgRevisionSlotsCacheExpiry (introduced in 1.43) – Revision slots may be cached in the main WAN cache and/or the local server cache to reduce load on the database.
• $wgTextModelsToParse – Determines which types of text are parsed as wikitext.
• $wgWikidiff2Options (introduced in 1.41) – Options for wikidiff2

• $wgAllowSchemaUpdates – Allow database schema updates to be executed with update.php script.
• $wgAllowSlowParserFunctions – Allow slow parser functions.
• $wgCriticalSectionTimeLimit – The maximum time critical sections are allowed to stay open.
• $wgDisableQueryPages – Disable all query pages if miser mode is on, not just some.
• $wgForceDeferredUpdatesPreSend – Force deferred updates to be run before sending a response to the client, instead of attempting to run them after sending the response.
• $wgLinkHolderBatchSize – LinkHolderArray batch size.
• $wgMaxArticleSize – Maximum page size in kibibytes.
• $wgMaximumMovedPages – Maximum number of pages to move at once when moving subpages with a page.
• $wgMaxJobDBWriteDuration – Max time (in seconds) a job-generated transaction can spend in writes.
• $wgMaxUserDBWriteDuration – Max time (in seconds) a user-generated transaction can spend in writes.
• $wgMemoryLimit – The minimum amount of memory that MediaWiki "needs"; MediaWiki will try to raise PHP's memory limit if it's below this amount.
• $wgMiserMode – Enable/disable database-intensive features
• $wgMultiShardSiteStats – Whether site_stats table should have multiple rows.
• $wgPoolCounterConf – Configuration for processing pool control.
• $wgPoolCountClientConf (introduced in 1.40) – Configuration array for the PoolCounter client.
• $wgQueryCacheLimit – Number of rows to cache in 'querycache' table when miser mode is on.
• $wgQueryPages – List of Special pages that inherit from QueryPage, that should also be taken in account by the updateSpecialPages.php maintenance script.
• $wgRequestTimeLimit – Set a limit on server request wall clock time.
• $wgTransactionalTimeLimit – Throttle for timing out transactional POST requests
• $wgWantedPagesThreshold – Minimum number of pages that must link to a page before it will appear on Special:Wantedpages.

• $wgCacheDirectory – Directory for per-wiki long-life cache files in the local filesystem.
• $wgCacheEpoch – Set this to current time to invalidate all prior cached pages.
• $wgCachePages – Allow client-side caching of pages
• $wgChronologyProtectorStash (removed in 1.43) – The object store type of the ChronologyProtector position store.
• $wgChronologyProtectorSecret (introduced in 1.41) – Secret string for HMAC hashing in ChronologyProtector (optional)
• $wgExtensionInfoMTime – Time to invalidate cache of extensions loaded by the extension registration system.
• $wgFooterLinkCacheExpiry (removed in 1.39) – Expiry time for the footer link cache, in seconds, or 0 if disabled.
• $wgGitInfoCacheDirectory – Directory where GitInfo will look for pre-computed cache files.
• $wgInvalidateCacheOnLocalSettingsChange – Setting this to true will invalidate all cached pages whenever LocalSettings.php is changed
• $wgLanguageConverterCacheType – The cache type for storing language conversion tables.
• $wgMainCacheType – Object cache setting
• $wgMainStash – Replicated object cache setting
• $wgMicroStashType (introduced in 1.42) – Central store for reliable short-lived data.
• $wgObjectCaches – Advanced object cache configuration.
• $wgParserCacheFilterConfig (introduced in 1.42) – Per-namespace configuration for the ParserCache filter.
• $wgParserCacheUseJson (removed in 1.39) – Enable JSON serialization for ParserCache.
• $wgParsoidCacheConfig – Configuration for the caching related to parsoid output. The configuration contains the following keys:
• $wgPHPSessionHandling – Whether to use PHP session handling ($_SESSION and session_*() functions)
• $wgSessionPbkdf2Iterations – Number of internal PBKDF2 iterations to use when deriving session secrets.
• $wgStatsCacheType (removed in 1.42) – The object cache type for stats storage.
• $wgSuspiciousIpExpiry – Time in seconds to remember IPs for, for the purposes of logging IP changes within the same session.
• $wgUseGzip – Use GZip to store cached pages.

See: Interwiki for Interwiki cache settings.

Settings for Server side file caching.

• $wgFileCacheDepth – Depth of subdirectory hierarchy under $wgFileCacheDirectory .
• $wgUseFileCache – Create static HTML pages for unregistered viewers to reduce database traffic.

• $wgAdaptiveMessageCache – Keep track which messages are requested and load only most used messages.
• $wgLocalisationCacheConf – Localisation cache configuration.
• $wgMessageCacheType – Message cache setting
• $wgUseLocalMessageCache – Make a local copy of the message cache, in addition to memcached.

• $wgEnableSidebarCache – If true, cache the sidebar navigation links.
• $wgSidebarCacheExpiry – Expiry time for the sidebar cache, in seconds.

• $wgOldRevisionParserCacheExpireTime – The expiry time for the parser cache for old revisions, in seconds.
• $wgRenderHashAppend – Append a configured value to the parser cache and the sitenotice cache keys.
• $wgParserCacheExpireTime – Expiration time (in seconds) of cached parser information
• $wgParserCacheType – Parser cache setting
• $wgUseContentMediaStyles (introduced in 1.41) (deprecated in 1.41) – Temporary flag to stop shipping the styles for the legacy media HTML structure that has been replaced when $wgParserEnableLegacyMediaDOM is false.

Settings for configuring the Memcached memory-based object store (if you are using it) docs/memcached.md has more details.

• $wgMemCachedDebug – Will be set to false in Setup.php, if the server isn't working.
• $wgMemCachedPersistent – Whether to use persistent connections to Memcached servers.
• $wgMemCachedServers – Memcached servers
• $wgMemCachedTimeout – Server connection timeout in microseconds.
• $wgObjectCacheSessionExpiry – Expiry time to use for session storage in seconds.
• $wgSessionCacheType – The cache type for storing session data.

• $wgMainWANCache (removed in 1.40) – Main wide area network cache configuration.
• $wgWANObjectCaches (removed in 1.40) – Advanced Wide-Area-Network cache configuration.
• $wgWANObjectCache (introduced in 1.40) – Extra parameters to the WANObjectCache constructor.

These settings configure MediaWiki when using a caching HTTP proxy server. They apply to caching using Varnish as well as Squid.

• $wgCdnMatchParameterOrder – Indicates if should take query parameters order on incoming requests into account for CDN caching
• $wgCdnMaxageLagged – Cache timeout for the CDN when DB replica lag is high
• $wgCdnMaxageStale – Cache timeout in seconds when delivering a stale ParserCache response due to PoolCounter contention.
• $wgCdnMaxageSubstitute – Cache timeout for the CDN when a response is known to be wrong or incomplete (due to load)
• $wgCdnMaxAge – Cache TTL for the CDN sent as s-maxage (without ESI) or Surrogate-Control (with ESI).
• $wgCdnReboundPurgeDelay – Secondary delayed purges of URLs
• $wgCdnServersNoPurge – Same as $wgCdnServers , except no HTTP purges will be sent and CIDR ranges are accepted
• $wgCdnServers – An array of individual proxy servers to help MediaWiki detect if the request has been proxied.
  But also to send back to the proxy PURGE commands on changes.
• $wgForcedRawSMaxage – Default maximum age (in seconds) for raw CSS/JavaScript accesses.
• $wgInternalServer – Internal server name as known to Squid, if different than $wgServer .
• $wgLoggedOutMaxAge (removed in 1.38) – Cache TTL for the user agent sent as max-age, for logged out users.
• $wgSquidMaxage (removed in 1.35) – Cache timeout for the squid.
• $wgSquidPurgeUseHostHeader (removed in 1.42) – Whether to use a Host header in purge requests sent to the proxy servers configured in $wgSquidServers.
• $wgSquidServersNoPurge (removed in 1.35) – Same as $wgSquidServers , except that MW has no methods to send HTTP PURGE to an origin part of the configured ranges
• $wgSquidServers (removed in 1.35) – An array of individual proxy servers to help MediaWiki detect if the request has been proxied.
  But also to send back to the proxy PURGE commands on changes.
• $wgUseCdn – Enable/disable page view caching.
• $wgUseESI (deprecated in 1.33) – If you run Squid3 with ESI support, enable this.
• $wgUsePrivateIPs – Whether private X-Forwarded-For IPs should be accepted
• $wgUseSquid (removed in 1.35) – Enable/disable Squid.
• $wgVaryOnXFP – Whether to add X-Forwarded-Proto to the Vary header for API requests and RSS/Atom feeds.

• $wgHTCPMulticastTTL – HTCP multicast purging
• $wgHTCPRouting – Routing configuration for HTCP multicast purging.

• $wgAllowRawHtmlCopyrightMessages (introduced in 1.43) – Whether on-wiki overrides for the copyright and history_copyright messages, which allow raw HTML, will be used.
• $wgAllUnicodeFixes – Whether to always convert certain Unicode sequences to modern ones regardless of the content language.
• $wgDefaultLanguageVariant – Default language variant.
• $wgDisabledVariants – Disabled variants for language variant conversion.
• $wgDisableLangConversion – Whether to enable language variant conversion.
• $wgDisableTitleConversion – Whether to enable language variant conversion for links.
• $wgDummyLanguageCodes – List of language codes that have been renamed to new (correct) codes, or don't correspond to an actual interface language.
• $wgExtraInterlanguageLinkPrefixes – Array of interwiki prefixes to be treated as language links.
• $wgExtraLanguageCodes – List of mappings from one language code to another
• $wgExtraLanguageNames – List of language names or overrides for default names in Names.php.
• $wgFixArabicUnicode (removed in 1.35) – Set this to true to clean up archaic Unicode sequences in Arabic text.
• $wgFixMalayalamUnicode (removed in 1.35) – Set this to true to clean up archaic Unicode sequences in Malayalam text.
• $wgForceUIMsgAsContentMsg – Array of UI messages that should be treated as content messages.
• $wgGrammarForms – Used for {{GRAMMAR:}} parser function.
• $wgHideInterlanguageLinks – Hide interlanguage links from the sidebar.
• $wgInterlanguageLinkCodeMap – Map of interlanguage link codes to language codes to override what is shown as the language name when the interwiki code does not match it exactly.
• $wgInterwikiMagic – Treat language links as magic connectors, not inline links.
• $wgLangObjCacheSize (removed in 1.37) – Language cache size, or really how many languages can we handle simultaneously without degrading to crawl speed.
• $wgLanguageCode – Site language code.
• $wgLegacyEncoding – Set this to the character set, which you used before you updated to MediaWiki 1.5 (eg 'ISO-8859-1'). MediaWiki will then perform a temporary character set conversion when loading old revisions, which are not marked with "utf-8" flag (revisions created with MediaWiki 1.4 and earlier).
• $wgLegacySchemaConversion (removed in 1.39) – Option to speed up the conversion step for large sites when migrating the schema from 1.4 to 1.5
• $wgLoginLanguageSelector – Show a bar of language selection links in the user login and user registration forms.
• $wgMaxMsgCacheEntrySize – Maximum entry size in the message cache, in bytes.
• $wgOverrideUcfirstCharacters – List of Unicode characters for which capitalization is overridden in Language::ucfirst.
• $wgRawHtmlMessages – List of messages which might contain raw HTML.
• $wgUseDatabaseMessages – Translation using MediaWiki: namespace.
• $wgUsePigLatinVariant – Whether to enable the pig latin variant of English (en-x-piglatin), used to ease variant development work.
• $wgUseXssLanguage (introduced in 1.41) – Whether to enable the x-xss language code, used to make checking for XSS issues more convenient.
• $wgVariantArticlePath – Used for links when having language's variants.
• $wgUserFallbackLanguages – maximum number of fallback languages per user

• $wgLocaltimezone – Fake out the timezone that the server thinks it's in.
• $wgLocalTZoffset – Add a distance to the server timezone in minutes.

English

• $wgAmericanDates – Use 'mdy' instead of 'dmy' as the default date format, e.g. 'May 12' instead of '12 May'.

Arabic/Hindi

• $wgTranslateNumerals – For Hindi, Arabic, and other languages with their own numeral systems, use local numerals instead of Western style (0-9) numerals in some areas of the interface.

• $wgBrowserFormatDetection – Override ability of certain browsers to attempt to autodetect dataformats in pages.
• $wgDisableOutputCompression – Disable output compression (compression enabled by default if zlib is available).
• $wgEdititis – Display user edit counts on special page "User list".
• $wgEditSubmitButtonLabelPublish – Vary the 'save' labels to 'publish' for public wikis.
• $wgEnableCanonicalServerLink – Output a <link rel="canonical"> tag on every page indicating the canonical server which should be used, i.e. $wgServer or $wgCanonicalServer .
• $wgExternalInterwikiFragmentMode – Determines which ID escaping mode should be used for external interwiki links
• $wgFragmentMode – Determines how section IDs should be encoded
• $wgInterwikiLogoOverride (introduced in 1.41) – List of interwiki logos overrides.
• $wgHTMLFormAllowTableFormat (removed in 1.42) – Allow form components to render tables.
• $wgHtml5Version – Defines the value of the version attribute in the ‎<html> tag, if any.
• $wgMangleFlashPolicy (removed in 1.40) – Whether to mangle any <cross-domain-policy> (Adobe cross-domain policy) tags, to prevent XSS attacks.
• $wgMimeType – The type to send in the Content-Type header.
• $wgSend404Code – Send 404 HTTP status for not found pages.
• $wgShowRollbackEditCount – Maximum number to count when a rollback link is shown
• $wgSiteNotice – A message to be displayed at the top of every page.
• $wgUseMediaWikiUIEverywhere (removed in 1.42) – Applies MediaWiki UI wherever it can be supported.
• $wgXhtmlNamespaces – Permit other XHTML namespaces in addition to the w3.org default.

• $wgDefaultSkin – The default skin for new users.
• $wgFallbackSkin – Fallback skin used when the skin defined by $wgDefaultSkin can't be found.
• $wgFooterIcons – Abstract list of footer icons for skins. It replaces the old copyrightico and poweredbyico code, which until MediaWiki 1.27 could be influenced with $wgCopyrightIcon
• $wgSkinMetaTags – An array of open graph tags which should be added by all skins.
• $wgSkipSkins – Specify the name of skins that should not be presented in the list of available skins.
• $wgSkipSkin (removed in 1.35) – Specify the name of a skin that should not be presented in the list of available skins.
• $wgUseCombinedLoginLink – Login / create account link behavior when it's possible for anonymous users to create an account.
• $wgVectorUseIconWatch – Watch and unwatch as a star icon rather than a link (for Vector skin only).
• $wgVectorUseSimpleSearch – Search form behavior for Vector skin only.

See ResourceLoader for more information.

• $wgAllowSiteCSSOnRestrictedPages – Allow site-wide Cascading Style Sheets (CSS) on restricted special pages
• $wgCodexDevelopmentDir (introduced in 1.43) – If this is set, MediaWiki will look for Codex files in this directory instead of in resources/lib/codex/ and friends.
• $wgIncludeLegacyJavaScript (removed in 1.39) – Whether to include the mediawiki.legacy JavaScript library (old wikibits.js), and its dependencies.
• $wgLegacyJavaScriptGlobals (removed in 1.37) – Whether or not to assign configuration variables to the global window object.
• $wgResourceBasePath – Default remoteBasePath value for resource loader modules.
• $wgResourceLoaderClientPreferences (introduced in 1.40) (removed in 1.41) – Enable client-side preferences for unregistered users.
• $wgResourceLoaderDebug – The default debug mode (on/off) for ResourceLoader requests.
• $wgResourceLoaderEnableJSProfiler – When enabled, execution of JavaScript modules is profiled client-side.
• $wgResourceLoaderEnableSourceMapLinks (introduced in 1.41) – Whether to include a SourceMap header in ResourceLoader responses for JavaScript modules.
• $wgResourceLoaderMaxage – How long a CDN or browser may cache a ResourceLoader HTTP response.
• $wgResourceLoaderMaxQueryLength – Maximum query string length for ResourceLoader requests.
• $wgResourceLoaderSources – Foreign module sources registry.
• $wgResourceLoaderStorageEnabled – Whether ResourceLoader should attempt to persist modules in localStorage on browsers that support the Web Storage API.
• $wgResourceLoaderStorageVersion – Cache version for client-side ResourceLoader module storage.
• $wgResourceLoaderUseObjectCacheForDeps (removed in 1.44) – Use the main stash instead of the module_deps table for indirect dependency tracking
• $wgResourceLoaderValidateJS – Validate JavaScript code loaded from wiki pages.
• $wgResourceModuleSkinStyles – Array of additional skin-provided stylesheets to existing ResourceLoader modules.
• $wgResourceModules – Array of all extra defined modules that can later be loaded during the output.
• $wgVueDevelopmentMode – Whether to use the development version of Vue.js.

• $wgDisableHardRedirects – Disable redirects to special pages and interwiki redirects, which use a 302 and have no "redirected from" link.
• $wgFixDoubleRedirects – Fix double redirects after a page move.
• $wgInvalidRedirectTargets – Array of invalid page redirect targets.
• $wgShortPagesNamespaceBlacklist (removed in 1.37) – Optional array of namespaces which should be blacklisted from Special:ShortPages
• $wgShortPagesNamespaceExclusions – Optional array of namespaces which should be excluded from Special:ShortPages
• $wgCapitalLinkOverrides – Per namespace configuration for $wgCapitalLinks .
• $wgCapitalLinks – Set this to false to avoid forcing the first letter of links to capitals.
• $wgLegalTitleChars (deprecated in 1.41) – Override the default list of illegal characters in page titles.
• $wgMaxRedirects (removed in 1.39) – Max number of redirects to follow when resolving redirects.

• $wgContentNamespaces – Namespaces which are considered to contain real content, or articles
• $wgCanonicalNamespaceNames – Canonical namespace names.
• $wgExtraNamespaces – Additional namespaces.
• $wgExtraGenderNamespaces – Same as $wgExtraNamespaces , but for namespaces with gender distinction.
• $wgExtraSignatureNamespaces – Controls in which subject (non-talk) namespaces the "Signature" button on the edit toolbar will be displayed.
• $wgMetaNamespace – Name used for the meta namespace.
• $wgMetaNamespaceTalk – Name of the project talk namespace.
• $wgNamespaceAliases – Provide additional names for namespaces.
• $wgNamespacesWithSubpages – Which namespaces should support subpages?

• $wgInterwikiPrefixDisplayTypes (removed in 1.39) – Mapping of interwiki index prefixes to descriptors that can be used to change the display of interwiki search results.
• $wgLocalInterwikis – Array of interwiki prefixes for this wiki.
• $wgLocalInterwiki (removed in 1.35) – Interwiki prefix for this wiki.
• $wgRedirectSources – Regular expression to restrict URLs which will be displayed as "redirected from" links.
• $wgSiteTypes – Register handlers for specific types of sites.

See interwiki cache for more information.

• $wgInterwikiCache – Interwiki cache as an associative array.
• $wgInterwikiExpiry – Expiry time for memcached cache of interwiki table.
• $wgInterwikiFallbackSite – Used by maintenance scripts to dump interwiki table
• $wgInterwikiScopes – Used by getInterwikiCache() to retrieve from interwiki database file

• $wgAllowDisplayTitle – Allows use of {{DISPLAYTITLE}} magic word
• $wgAllowExternalImagesFrom – If $wgAllowExternalImages is false, you can specify exceptions here.
• $wgAllowExternalImages – Determines whether or not MediaWiki will allow external images to be rendered inline with text.
• $wgAllowImageTag (removed in 1.42) – Allow ‎<img> tag to be used in wikitext.
• $wgCleanSignatures – Substitute templates in signatures.
• $wgEnableImageWhitelist – Enables an on-wiki external image whitelist
• $wgEnableMagicLinks – Controls whether magic link functionality should be enabled
• $wgEnableScaryTranscluding – Allow templates to be imported/transcluded from another wiki.
• $wgExpensiveParserFunctionLimit – Maximum number of calls per parse to expensive parser functions such as PAGESINCATEGORY.
• $wgExternalLinkTarget – Set a default target for external links.
• $wgMaxGeneratedPPNodeCount (removed in 1.35) – A complexity limit on template expansion: the maximum number of nodes generated by Preprocessor::preprocessToObj()
• $wgMaxPPExpandDepth – Stack depth limit for expansion with the preprocessor.
• $wgMaxPPNodeCount – A complexity limit on template expansion: the maximum number of nodes visited by PPFrame::expand()
• $wgMaxTemplateDepth – Maximum recursion depth for templates within templates.
• $wgMaxTocLevel – Maximum indent level of the table of contents (ToC).
• $wgNoFollowDomainExceptions – External links to these domain names (or any subdomains) will not be set to rel="nofollow".
• $wgNoFollowLinks – If true, external URL links in wiki text will be given the rel="nofollow" attribute.
• $wgNoFollowNsExceptions – Namespaces in which Manual:$wgNoFollowLinks doesn't apply.
• $wgParserConf (removed in 1.36) – Parser configuration.
• $wgParserEnableLegacyHeadingDOM (introduced in 1.43) – Enable legacy HTML structure for headings in the output from the Parser.
• $wgParserEnableLegacyMediaDOM (deprecated in 1.41) – Enable legacy media HTML structure in the output from the Parser.
• $wgParserEnableUserLanguage (introduced in 1.43) – Set this to true to allow the {{USERLANGUAGE}} magic word to return the actual user language.
• $wgParsoidSettings – Default Parsoid configuration.
• $wgParsoidSelectiveUpdateSampleRate (introduced in 1.43) – Sample rate for collecting statistics on Parsoid selective update.
• $wgPreprocessorCacheThreshold – Preprocessor caching threshold.
• $wgRegisterInternalExternals – Whether to register external links pointing to the same server.
• $wgRestrictDisplayTitle – Restrict {{DISPLAYTITLE}} to titles that normalize to the same canonical database key
• $wgTranscludeCacheExpiry – Expiry time for interwiki transclusion cache
• $wgUrlProtocols – Defines the protocols which are supported and translated in HTML by the mediawiki parser.
• $wgUseNewMediaStructure (removed in 1.37) – Emit using the new media structure described at, Parsing/Media structure
• $wgUseLegacyMediaStyles (introduced in 1.41) – Temporary flag to re-enable the old thumbnail styles provided by core for the legacy media HTML structure.

• $wgRawHtml – Allow raw, unchecked HTML in ‎<html>...‎</html> sections.
• $wgTidyConfig – Configuration of the HTML postprocessing tool to use for fixing invalid HTML code.

• $wgActiveUserDays – The number of days within which a person must make edits to be considered an "active" user
• $wgArticleCountMethod – Method used to determine if a page in a content namespace should be counted as a valid content page (article).
• $wgDisableCounters (removed in 1.35) – Disable page view counters.
• $wgExperiencedUserEdits – Determines the number of edits needed to qualify at the "Experienced user" level.
• $wgExperiencedUserMemberSince – Determines the number of days needed since account creation to qualify at the "Experienced user" level.
• $wgLearnerEdits – Determines the number of edits needed to qualify at the "Learner" experience level.
• $wgLearnerMemberSince – Determines the number of days needed since account creation to qualify at the "Learner" experience level.
• $wgManualRevertSearchRadius – Maximum number of revisions of a page that will be checked against every new edit made to determine whether the edit was a manual revert.
• $wgRevertedTagMaxDepth – Maximum depth (revision count) of reverts that will have their reverted edits marked with the mw-reverted change tag.

• $wgAllowRequiringEmailForResets (removed in 1.43) – Temporary feature flag that controls whether users will see a checkbox allowing them to require providing email during password resets.
• $wgAutoCreateTempUser – Configuration for automatic creation of temporary accounts on page save.
• $wgConditionalUserOptions (introduced in 1.42) – Default user preferences.
• $wgDefaultUserOptions – Default user preferences.
• $wgHiddenPrefs – Disable certain user preferences.
• $wgInvalidUsernameCharacters – Characters to prevent during new account creations.
• $wgMaximalPasswordLength (removed in 1.42) – Specifies the maximal length of a user password.
• $wgMaxNameChars – Maximum number of bytes in username.
• $wgMaxSigChars – Maximum wiki code length for customized signatures.
• $wgMinimalPasswordLength (removed in 1.42) – Specifies the minimal length of a user password.
• $wgPasswordPolicy – Specifies various settings related to password strength and security.
• $wgReservedUsernames – List of account names that cannot exist.
• $wgSignatureValidation – Behavior of signature validation.
• $wgSignatureAllowedLintErrors – List of lint error codes which don't cause signature validation to fail.
• $wgUserrightsInterwikiDelimiter – Character used as the separator between username and database name on Special:UserRights.

• $wgAllowSecuritySensitiveOperationIfCannotReauthenticate – Whether to allow security-sensitive operations when reauthentication is not possible
• $wgAuthenticationTokenVersion – When changed, all existing sessions are invalidated.
• $wgAuthManagerAutoConfig – Register authentication providers to use with AuthManager
• $wgAuthManagerConfig – Manual override for authentication provider configuration
• $wgCentralIdLookupProviders – Register central ID lookup providers.
• $wgCentralIdLookupProvider – Default central id lookup implementation to use
• $wgChangeCredentialsBlacklist – List of AuthenticationRequest class names which are not changeable through Special:ChangeCredentials and the changeauthenticationdata API.
• $wgInvalidPasswordReset – Specifies if users should be sent to a password-reset form on login in case of an inadequate password.
• $wgPasswordConfig – Configuration for built-in password types.
• $wgPasswordDefault – Default password type to use when hashing user passwords.
• $wgPasswordResetRoutes – Whether to allow password resets identified by various bits of data.
• $wgReauthenticateTime – Time frame for re-authentication
• $wgRememberMe – Configures RememberMe authentication request added by AuthManager.
• $wgRemoveCredentialsBlacklist – List of AuthenticationRequest class names which are not removable through Special:RemoveCredentials and the removeauthenticationdata API.
• $wgSecureLogin – Whether to let user authenticate using https when they come from http.
• $wgSessionProviders – Session provider configuration.
• $wgUserRegistrationProviders (introduced in 1.41) – User registration timestamp provider classes

• $wgAddGroups – Controls who can add specific groups using Special:Userrights.
• $wgAutoblockExpiry – Number of seconds before autoblock entries expire
• $wgBlockAllowsUTEdit – Allow blocked users to edit their talk pages
• $wgDeleteRevisionsBatchSize – Page deletions with > this number of revisions will use the job queue.
• $wgDnsBlacklistUrls – List of DNS blacklists to use, if $wgEnableDnsBlacklist is true.
• $wgEmailConfirmToEdit – Require users to confirm email address before they can edit, true to enable.
• $wgEnableDnsBlacklist – Whether to use DNS blocklists in $wgDnsBlacklistUrls to check for open proxies.
• $wgGrantPermissionGroups – Used to define grant groups and assign grants to them.
• $wgGrantPermissions – Used to define grants and assign permissions to them.
• $wgGrantRiskGroups (introduced in 1.42) – Group grants by risk level.
• $wgGroupInheritsPermissions – Groups that should inherit permissions from another group.
• $wgGroupPermissions – Use this to set access rights for groups and users in these groups.
• $wgGroupsAddToSelf – Use this to allow users to add themselves to specified groups via Special:Userrights.
• $wgGroupsRemoveFromSelf – Use this to allow users to remove themselves from specified groups via Special:Userrights.
• $wgHideUserContribLimit – The maximum number of edits a user can have and can still be hidden by users with the hideuser permission.
• $wgImplicitGroups – Groups that are not shown on Special:Listusers or somewhere else
• $wgPasswordAttemptThrottle – Limit password attempts per IP per address.
• $wgPrivilegedGroups (introduced in 1.40.1) – List of groups which should be considered privileged (user accounts belonging in these groups can be abused in dangerous ways).
• $wgProxyList – A list of IP addresses to be banned
• $wgProxyWhitelist – Proxy allowlist: list of addresses that are assumed to be non-proxy despite what the other methods might say.
• $wgRateLimitsExcludedIPs – Array of IPs/CIDR ranges which should never trigger the rate limiter.
• $wgRateLimits – Simple rate limiter options to brake edit floods.
• $wgRemoveGroups – Controls who can remove specific groups using Special:Userrights.
• $wgRevokePermissions – Permission keys revoked from users in each group.
• $wgWhitelistReadRegexp – Whitelists publicly readable titles with regular expressions.
• $wgWhitelistRead – Pages anonymous user may see.

Blocking/banning, and some other related settings.

• $wgAccountCreationThrottle – Number of accounts each IP address may create, 0 to disable.
• $wgApplyIpBlocksToXff – Apply IP address blocks also to users having a blocked IP in their XFF header.
• $wgAutoConfirmAge – Number of seconds an account is required to age before it's given the implicit 'autoconfirmed' group membership.
• $wgAutoConfirmCount – Number of edits an account requires before it is autoconfirmed.
• $wgAutopromoteOnceLogInRC – Whether to put user rights log entries for autopromotion in recent changes.
• $wgAutopromoteOnceRCExcludedGroups (introduced in 1.44) – Defines a denylist of group names.
• $wgAutopromoteOnce – Conditions of automatic promotion of user to specific groups that are done only once.
• $wgAutopromote – Conditions of automatic promotion of user to specific groups
• $wgAvailableRights – A list of available rights, in addition to the ones defined by the core.
• $wgBlockCIDRLimit – Maximum CIDR range when blocking an IP range.
• $wgBlockDisablesLogin – If set to true, blocked users will no longer be allowed to log in
• $wgBlockTargetMigrationStage (introduced in 1.42) (deprecated in 1.43) – ipblocks table schema migration stage, for normalizing ipb_address field and adding the block_target table.
• $wgBotPasswordsCluster (deprecated in 1.42) – Cluster name for the bot_passwords table
• $wgBotPasswordsDatabase (deprecated in 1.42) – Database name for the bot_passwords table
• $wgCascadingRestrictionLevels – Restriction levels that can be used with cascading protection
• $wgDeleteRevisionsLimit – Integer of how many revisions a page must have before the bigdelete right is required to delete it.
• $wgEnableBotPasswords – Whether to enable bot passwords
• $wgEnableMultiBlocks (introduced in 1.42) – If this is false, the number of blocks of a given target is limited to only 1.
• $wgEnablePartialBlocks (removed in 1.35) – Allow partial blocks to be created
• $wgEnablePartialActionBlocks – Flag to enable partial blocks against performing certain actions.
• $wgHideIdentifiableRedirects – Protects user's privacy when doing redirects
• $wgImplicitRights (introduced in 1.41) – A list of implicit rights, in addition to the ones defined by the core.
• $wgNamespaceProtection – Which namespaces can be edited by whom?
• $wgNonincludableNamespaces – Use this to deny inclusion of pages from specific namespaces.
• $wgPutIPinRC – Log IP addresses in the recentchanges table.
• $wgQueryPageDefaultLimit – Integer defining default number of entries to show on query pages
• $wgRestrictionLevels – Set of permission keys that can be selected on the "page protection" page.
• $wgRestrictionTypes – Actions that can be restricted
• $wgSemiprotectedRestrictionLevels – Restriction levels that are considered "semi-protected"
• $wgSoftBlockRanges – IP ranges that should be considered soft-blocked (anon-only, account creation allowed)
• $wgSpamRegex – A regular expression pattern which, if the page content matched it, stops a page from being saved.
• $wgSummarySpamRegex – Same as $wgSpamRegex except for edit summaries.
• $wgSysopEmailBans (removed in 1.35) – Allow sysops to ban users from accessing Special:Emailuser.
• $wgTempAccountCreationThrottle (introduced in 1.42) – Number of temporary accounts each IP address may create per specified period(s).
• $wgTempAccountNameAcquisitionThrottle (introduced in 1.42) – Number of temporary accounts usernames each IP address may acquire per specified period(s).

See Manual:Preventing access for more methods and settings concerning access. See also Manual:User rights for more information about $wgGroupPermissions, $wgAddGroups, $wgRemoveGroups, etc.

See User Access for User Access settings.

• $wgAllowCrossOrigin – Allow anonymous cross origin requests to the REST API.
• $wgAllowUserCssPrefs – Allow user preferences implemented in CSS.
• $wgAllowUserCss – Allow user Cascading Style Sheets (CSS)
• $wgAllowUserJs – Allow user JavaScript pages
• $wgApiFrameOptions – Control framing of api pages.
• $wgBreakFrames – Break out of framesets. This can be used to prevent external sites from framing your site with ads.
• $wgCSPFalsePositiveUrls – Controls what URLs to ignore in upcoming Content-Security-Policy feature's reporting.
• $wgCSPHeader – Controls Content-Security-Policy header [Experimental]
• $wgCSPReportOnlyHeader – Controls Content-Security-Policy-Report-Only header [Experimental]
• $wgEditPageFrameOptions – Control framing of wiki pages globally.
• $wgHKDFAlgorithm (removed in 1.43) – Algorithm for HMAC-based key derivation function (fast, cryptographically secure random numbers).
• $wgHKDFSecret (removed in 1.43) – Secret for HMAC-based key derivation function (fast, cryptographically secure random numbers).
• $wgRestAllowCrossOriginCookieAuth – Allows authenticated cross-origin requests to the REST API with session cookies.
• $wgSecretKey – This should always be customized to a secret, unique string in LocalSettings.php .
• $wgSessionInsecureSecrets (removed in 1.43) – Allows MediaWiki to work at the cost of storing sensitive session data insecurely.
• $wgSessionSecret – Secret for session storage.
• $wgUseSiteCss – Use the site's Cascading Style Sheets (CSS)
• $wgUseSiteJs – Use the site's JavaScript page

• $wgCacheVaryCookies – A list of cookies that influence the cache.
• $wgCookieDomain – Explicit domain for login cookies.
• $wgCookieExpiration – Number of seconds before HTTP cookies expire. You can override this for 'Keep me logged in (for up to $1 days)' cookies with $wgExtendedLoginCookieExpiration
• $wgCookieHttpOnly – Set the httpOnly flag on all cookies set by MediaWiki (to prevent access from JavaScript).
• $wgCookiePath – Explicitly declared "path" for cookies at the cookie domain
• $wgCookiePrefix – Custom cookie prefix.
• $wgCookieSameSite – The SameSite cookie attribute used for login cookies.
• $wgCookieSecure – Whether cookies are secured.
• $wgCookieSetOnAutoblock – Determines whether to set a cookie when a user is autoblocked. Doing so means that a blocked user, even after logging out and moving to a new IP address, will still be blocked.
• $wgCookieSetOnIpBlock – Determines whether to set a cookie when an IP user is blocked. Doing so means that a blocked user, even after moving to a new IP address, will still be blocked.
• $wgDisableCookieCheck (removed in 1.42) – Disables session cookies
• $wgExtendedLoginCookieExpiration – If non-null, duration in seconds to use for "Keep me logged in (for up to $1 days)" sessions; 0 means until the browser is closed. If null, uses $wgCookieExpiration
• $wgSessionName – Override to customize the session name.
• $wgUseSameSiteLegacyCookies (removed in 1.42) – Send a legacy cookie with an ss0- prefix when SameSite=None is sent.

• $wgCachePrefix – Custom value for the cache key prefix.
• $wgEnableJavaScriptTest – Allows running of JavaScript test suites via Special:JavaScriptTest (such as QUnit).
• $wgParserTestFiles (removed in 1.40) – Parser test suite files to be run by parserTests.php.

See also: Manual:How to debug

• $wgDebugComments – Include portions of log output in page HTML comment
• $wgDebugDumpSql – Dump SQL queries to debug output
• $wgDebugLogFile – The file name of the debug log, or empty if disabled.
• $wgDebugLogGroups – Direct wfDebugLog() output for certain groups to files other than $wgDebugLogFile .
• $wgDebugLogPrefix – Prefix for debug log lines.
• $wgDebugRawPage – If false, 'action=raw' and load.php hits will not result in debug output.
• $wgDebugRedirects – Displays redirect location instead of actually redirecting to the target URL
• $wgDebugTimestamps (removed in 1.35) – Prefix debug messages with relative timestamp.
• $wgDebugToolbar – Display the debugging toolbar
• $wgDeprecationReleaseLimit – Release limitation to wfDeprecated warnings.
• $wgDevelopmentWarnings – Whether to throw PHP notices for some possible error conditions and for deprecated functions.
• $wgLogExceptionBacktrace – Whether to send the exception backtrace to the error log.
• $wgMWLoggerDefaultSpi – Default service provider for creating MWLogger instances.
• $wgOverrideHostname – Override server hostname detection with a hardcoded value.
• $wgPageInfoTransclusionLimit – Limit template transclusion on InfoAction
• $wgPropagateErrors – If true, the MediaWiki error handler passes errors/warnings to the default error handler after logging them.
• $wgShowDBErrorBacktrace (removed in 1.37) – If true, show a backtrace for database errors.
• $wgShowDebug – Show debug data at bottom of content area
• $wgShowExceptionDetails – If set to true, uncaught exceptions will print a detailed stack trace to output.
• $wgShowHostnames – If set to true, exposes host names through API and HTML comments.
• $wgShowSQLErrors (removed in 1.37) – Whether to show SQL errors on "we're sorry, but there has been a database error" pages.
• $wgSpecialVersionShowHooks – Whether to show the contents of $wgHooks in Special:Version.
• $wgTrxProfilerLimits – Performance expectations for DB usage

• $wgEnableProfileInfo (removed in 1.35) – Controls the availability of profileinfo.php.
• $wgMetricsTarget (removed in 1.40) – Output target URI for the MetricsFactory service, e.g. udp://127.0.0.1:8125.
• $wgMetricsPrefix (removed in 1.40) – Service name prefix for the MetricsFactory service.
• $wgMetricsFormat (removed in 1.40) – Output format for the MetricsFactory service, e.g. 'statsd'.
• $wgOpenTelemetryConfig (introduced in 1.43) – Configuration for OpenTelemetry instrumentation, or null to disable it.
• $wgProfiler – Settings related to profiling.
• $wgProfileLimit (removed in 1.35) – Only record profiling info for pages that took longer than this number of seconds to load.
• $wgProfileOnly (removed in 1.35) – Don't put non-profiling info into log file
• $wgStatsdMetricPrefix – Prefix for metric names sent to $wgStatsdServer
• $wgStatsdSamplingRates (removed in 1.43) – Sampling rate for statsd metrics as an associative array of patterns and rates.
• $wgStatsdServer – A host or host:port of a statsd server.
• $wgStatsFormat (introduced in 1.40) – Output format for the StatsFactory service, e.g. 'statsd'.
• $wgStatsPrefix (introduced in 1.40) – Service name prefix for the StatsFactory service.
• $wgStatsTarget (introduced in 1.40) – Output target URI for the StatsFactory service, e.g. udp://127.0.0.1:8125.

• $wgAdvancedSearchHighlighting – Set to true to have more useful text snippets in search results.
• $wgDisableInternalSearch – Disable internal search so that extensions can implement it.
• $wgDisableSearchUpdate – If you've disabled search semi-permanently, this also disables updates to the table.
• $wgDisableTextSearch – Disable full-text search.
• $wgEnableOpenSearchSuggest (removed in 1.40) – Enable OpenSearch suggestions requested by MediaWiki.
• $wgEnableSearchContributorsByIP – Whether searching for an IP address will be redirected to that IP's contributions page.
• $wgNamespacesToBeSearchedDefault – Which namespaces should be searched?
• $wgOpenSearchDefaultLimit – Integer defining default number of entries to show on OpenSearch call.
• $wgOpenSearchDescriptionLength – Minimum length of extract in ‎<Description>.
• $wgOpenSearchTemplates – Templates for OpenSearch suggestions.
• $wgOpenSearchTemplate (removed in 1.42) – Template for OpenSearch suggestions.
• $wgSearchForwardUrl – Set this to a URL to forward search requests to some external location.
• $wgSearchHighlightBoundaries – Regexp to match word boundaries
• $wgSearchMatchRedirectPreference – Set true to allow logged-in users to set a preference whether or not matches in search results should force redirection to that page.
• $wgSearchRunSuggestedQuery – If search returns zero results and current search engine has a "did you mean" suggestion, results for the suggestion will be shown.
• $wgSearchSuggestCacheExpiry – Expiry time for search suggestion responses.
• $wgSitemapNamespacesPriorities – Custom namespace priorities for sitemaps.
• $wgSitemapNamespaces – Array of namespaces identified by their IDs to generate a sitemap or false for all namespaces.
• $wgSpecialSearchFormOptions – Options for Special:Search completion widget form created by SearchFormWidget class.
• $wgUseTwoButtonsSearchForm (removed in 1.36) – Sidebar's search form behavior.

• $wgDiff3 – Path to the GNU diff3 utility.
• $wgDiff – Path to the GNU diff utility.
• $wgPreviewOnOpenNamespaces – Namespaces where preview-on-first-edit is forced.
• $wgUniversalEditButton – Enable the UniversalEditButton for browsers that support it.
• $wgUseAutomaticEditSummaries – Whether MediaWiki should make automatic edit summaries.

• $wgCommandLineDarkBg – Assume a dark terminal background for maintenance scripts.
• $wgCommandLineMode – Indicates whether MW is running in command-line mode. Should never be set manually!
• $wgGitBin – Path to the git binary.
• $wgGitRepositoryViewers – Map of Git repository URLs to their gitweb interface URLs
• $wgReadOnlyFile – If this file is found, the database is locked for the reason given in the contents of the file.
• $wgReadOnlyWatchedItemStore – Set this to true to put the wiki watchlists into read-only mode.
• $wgReadOnly – Disallows editing, displaying the string given as the reason.
• $wgUpgradeKey – Password that controls access to web-based updater.

See also Help:Recent changes and $wgDefaultUserOptions .

• $wgDisableAnonTalk – Disable talk pages for anonymous users (not logged in).
• $wgRCChangedSizeThreshold – Highlight character count difference lower than this.
• $wgRCEngines (deprecated in 1.38) – Legacy mapping from URI schemes to RCFeed subclasses.
• $wgRCFeeds – Configuration for sending RC updates
• $wgRCFilterByAge – Filter $wgRCLinkDays by $wgRCMaxAge to avoid showing links for numbers higher than what will be stored.
• $wgRCLinkDays – List days options to list in the Special:Recentchanges and Special:Recentchangeslinked pages.
• $wgRCLinkLimits – List changes limits options to list in the Special:Recentchanges and Special:Recentchangeslinked pages.
• $wgRCMaxAge – Items in the recentchanges table are periodically purged; entries older than this many seconds will go.
• $wgRCShowChangedSize – Show the amount of changed characters in recent changes.
• $wgRCShowWatchingUsers – Show watching users in recent changes, watchlist and page history views.
• $wgRCWatchCategoryMembership – Treat category membership changes as a RecentChange.
• $wgRecentChangesFlags – Flags (letter symbols) shown in recent changes and watchlist to indicate certain types of edits.
• $wgShowUpdatedMarker – Show new changes: bold in watchlist, with "updated since my last visit" in history.
• $wgSoftwareTags – List of core tags to enable.
• $wgStructuredChangeFiltersLiveUpdatePollingRate – Polling rate, in seconds, used by the 'live update' feature of Special:RecentChanges and Special:Watchlist
• $wgUnwatchedPageSecret – If active watchers (per $wgWatchersMaxAge ) are this number or less, do not disclose it.
• $wgUnwatchedPageThreshold – Allows users without the "unwatchedpages" user right to view the number of page watchers for a specified page via the "info" action if the number of watchers is above the specified threshold.
• $wgUseFilePatrol – Use file patrolling to check new files on Special:NewFiles
• $wgUseNPPatrol – Use new pages patrolling to check for vandalism
• $wgUseRCPatrol – Use RC patrolling to check for vandalism
• $wgUseTagFilter – Allow filtering by change tag in recentchanges, history, etc.
• $wgWatchersMaxAge – Page watchers inactive for more than this many seconds are considered inactive. Used mainly by action=info .
• $wgWatchlistExpiryMaxDuration – Relative maximum duration for watchlist expiries, as accepted by strtotime().
• $wgWatchlistExpiry – Enable the watchlist expiry feature.
• $wgWatchlistPurgeRate – The per-edit rate at which expired watchlist items will be purged from the database.

• $wgFeed – Toggle syndication feeds (RSS, Atom e.g. Recentchanges, Newpages) on and off.
• $wgAdvertisedFeedTypes – Feed types that should be provided by default.
• $wgFeedCacheTimeout – Minimum timeout for cached Recentchanges feed, in seconds.
• $wgFeedClasses – Available feeds objects.
• $wgFeedDiffCutoff – When generating Recentchanges RSS/Atom feed, diffs will not be generated for pages larger than this size.
• $wgFeedLimit – Set maximum number of results to return in syndication feeds (RSS, Atom) for e.g. Recentchanges, Newpages.
• $wgOverrideSiteFeed – Override the site's default rss/atom feed that appears on every page.

• $wgMaxCredits – Set this to the number of authors that you want to be credited below an article text.
• $wgRightsIcon – Override for copyright metadata.
• $wgRightsPage – Override for copyright metadata.
• $wgRightsText – Override for copyright metadata.
• $wgRightsUrl – Override for copyright metadata.
• $wgShowCreditsIfMax – If there are more than $wgMaxCredits authors, show $wgMaxCredits of them.
• $wgUseCopyrightUpload – Set this to true if you want detailed copyright information forms on Upload.

• $wgExportAllowAll – Whether to allow exporting the entire wiki into a single file.
• $wgExportAllowHistory – Controls the availability of the full-history feature on "Special:Export".
• $wgExportAllowListContributors – Controls whether to allow to list all contributors while exporting a page using Special:Export.
• $wgExportFromNamespaces – Whether to allow the "export all pages in namespace" option.
• $wgExportMaxHistory – Requests using "Special:Export" for pages with a revision history higher than set will be rejected.
• $wgExportMaxLinkDepth – Maximum value of the "pagelink-depth" parameter in Special:Export.
• $wgExportPagelistLimit – Maximum number of pages returned by the GetPagesFromCategory and GetPagesFromNamespace functions.
• $wgImportSources – List of interwiki prefixes for wikis we'll accept as sources for Special:Import
• $wgImportTargetNamespace – Optional default target namespace for interwiki imports.
• $wgXmlDumpSchemaVersion – The schema to use by default when generating XML dumps.

• $wgAutoloadAttemptLowercase (removed in 1.40) – Switch controlling legacy case-insensitive classloading.
• $wgAutoloadClasses – Array mapping class names to filenames, for autoloading.
• $wgEnableParserLimitReporting – Controls whether the NewPP parser report is output in a HTML comment.
• $wgExtensionCredits – Global list of extension credits
• $wgExtensionEntryPointListFiles – Array of files with list(s) of extension entry points to be used in maintenance/mergeMessageFileList.php
• $wgExtensionFunctions – A list of callback functions which are called once MediaWiki is fully initialised.
• $wgExtensionMessagesFiles – Extension messages files.
• $wgHooks – Global list of hooks.
• $wgJobBackoffThrottling – Number of times work items of a job type can be run per second.
• $wgJobClasses – Maps jobs to their handling classes.
• $wgJobQueueIncludeInMaxLagFactor – Whether to include the number of jobs that are queued for the API's maxlag parameter.
• $wgJobSerialCommitThreshold (removed in 1.42) – Make job runners commit changes for replica DB-lag prone jobs one job at a time.
• $wgJobTypeConf – Configuration for job storage.
• $wgJobTypesExcludedFromDefaultQueue – Jobs that must be explicitly requested, i.e. aren't run by job runners unless special flags are set.
• $wgMessagesDirs – Extension messages directories.
• $wgPagePropLinkInvalidations – Page property link table invalidation lists.
• $wgParserOutputHooks (removed in 1.41) – Parser output hooks.
• $wgServiceWiringFiles – List of service wiring files to be loaded by the default instance of MediaWikiServices.
• $wgSpecialPageCacheUpdates – Additional functions to be performed with updateSpecialPages.php .
• $wgSpecialPages – A list of custom special pages.
• $wgValidSkinNames – List of valid skin names. Skins can optionally use this variable to tell MediaWiki that they are available.

• $wgCategoryCollation – What collation categories use to sort with
• $wgCategoryMagicGallery – On category pages, show thumbnail gallery for images belonging to that category instead of listing them as articles.
• $wgCategoryPagingLimit – Paging limit for items in categories.
• $wgUseCategoryBrowser (removed in 1.38) – Enable/Disable experimental breadcrumb (or dmoz-style) category browsing.
• $wgSortedCategories (introduced in 1.43) – Whether to sort categories in OutputPage for display.
• $wgTempCategoryCollations – Additional category collations to store during LinksUpdate.
• $wgTrackingCategories (deprecated in 1.25) – The list of messages representing tracking categories which are listed at Special:TrackingCategories.

• $wgActionFilteredLogs – List of log types that can be filtered by action types
• $wgFilterLogTypes – Show/hide links on Special:Log will be shown for these log types.
• $wgLogActionsHandlers – Same as $wgLogActions , but values are LogFormatter derived class names.
• $wgLogActions – Lists the message key string for formatting individual events of each type and action when listed in the logs.
• $wgLogHeaders – Lists the message key string for descriptive text to be shown at the top of each log type.
• $wgLogNames – Lists the message key string for each log type.
• $wgLogRestrictions – Restricts log access to those who have a certain right.
• $wgLogTypes – List of log types.
• $wgNewUserLog – Whether to maintain a log of newusers, which can be viewed at Special:Log/newusers.
• $wgPageCreationLog – Whether to maintain a log of new page creations, which can be viewed at Special:Log/create.

• $wgAllowSpecialInclusion – Allow special page inclusions such as {{Special:Allpages}}.
• $wgCountCategorizedImagesAsUsed – On Special:UnusedFiles, consider images "used" if they are put into a category.
• $wgDisableQueryPageUpdate – Array of special pages that should not be updated.
• $wgMaxRedirectLinksRetrieved – Maximum number of links to a redirect page listed on Special:Whatlinkshere/RedirectDestination
• $wgRangeContributionsCIDRLimit – Shortest CIDR limits that can be checked in any individual range check at Special:Contributions.

• $wgActions – Array of allowed values for the "action" parameter for normal pages.

• $wgArticleRobotPolicies – Allow customisation of robot policies on a per-page basis.
• $wgDefaultRobotPolicy – Allows specifying the default robot policy for all pages on the wiki
• $wgExemptFromUserRobotsControl – An array of namespace keys in which the __INDEX__/__NOINDEX__ magic words will not function.
• $wgNamespaceRobotPolicies – Allow customisation of robot policies on a per-namespace basis.

• $wgAjaxEditStash (removed in 1.37) – Whether edits should be prepared via AJAX as users type edit summaries.
• $wgAjaxExportList (removed in 1.38) – List of functions in AjaxFunctions.php that are callable via action=ajax
• $wgAjaxLicensePreview – Use Ajax to preview licensing for uploads.
• $wgAjaxUploadDestCheck (removed in 1.41) – Enable Ajax check for file overwrite, pre-upload.
• $wgUseAjax (removed in 1.38) – Enable AJAX support.

• $wgAllowedCorsHeaders – List of allowed headers for cross-origin API requests.
• $wgAPICacheHelpTimeout – Set the timeout for the API help text cache. Set to 0 to disable caching of API help text.
• $wgAPIFormatModules – API format module extensions.
• $wgAPIListModules – API list module extensions.
• $wgAPIMaxDBRows – Maximum number of rows to scan in API database queries.
• $wgAPIMaxLagThreshold – Maximum amount of DB lag on a majority of DB replica DBs to tolerate before forcing bots to retry any write requests via API errors.
• $wgAPIMaxResultSize – Maximum size (in bytes) of an API result.
• $wgAPIMaxUncachedDiffs – The maximum number of uncached diffs that can be retrieved in one API request.
• $wgAPIMetaModules – API meta module extensions.
• $wgAPIModules – API module extensions.
• $wgAPIPropModules – API prop module extensions.
• $wgAPIRequestLog (deprecated in 1.43) – Log file or URL (TCP or UDP) to log API requests to.
• $wgAPIUselessQueryPages – The ApiQueryQueryPages module should skip pages that are redundant to true API queries.
• $wgCrossSiteAJAXdomainExceptions – Domains that should not be allowed to make AJAX requests, even if they match one of the domains allowed by $wgCrossSiteAJAXdomains .
• $wgCrossSiteAJAXdomains – Domains that may make cross-site Ajax requests to the MediaWiki API.
• $wgDebugAPI – Loosens API security to allow for easier debugging
• $wgEnableRestAPI (removed in 1.36) – Enable the MediaWiki REST API.
• $wgRestAPIAdditionalRouteFiles – Additional REST API Route files.
• $wgRestSandboxSpecs (introduced in 1.43) – A list of OpenAPI specs to be made available for exploration on Special:RestSandbox.

• $wgPhpCli – Executable path of PHP cli client (php/php5).
• $wgMaxShellFileSize – Maximum file size created by shell processes under linux, in KiB.
• $wgMaxShellMemory – Maximum amount of virtual memory available to shell processes under Linux, in KiB.
• $wgMaxShellTime – Maximum CPU time in seconds for shell processes under Linux.
• $wgMaxShellWallClockTime – Limit shell commands duration using real time.
• $wgShellboxSecretKey – The secret key for HMAC verification of Shellbox requests.
• $wgShellboxUrl (removed in 1.40) – Shell commands can be run on a remote server using Shellbox.
• $wgShellboxUrls – Shell commands can be run on a remote server using Shellbox .
• $wgShellCgroup – Limit shell commands memory using linux Cgroups.
• $wgShellLocale (removed in 1.38) – Locale for LC_ALL.
• $wgShellRestrictionMethod – Method to use to restrict shell commands

• $wgAllowExternalReqID – controls whether MediaWiki accepts the request ID set by the incoming request via the "X-Request-Id" header.
• $wgAsyncHTTPTimeout – Timeout for asynchronous HTTP requests.
• $wgHTTPConnectTimeout – Timeout for connections done internally (in seconds)
• $wgHTTPMaxTimeout – The maximum HTTP request timeout in seconds.
• $wgHTTPMaxConnectTimeout – The maximum HTTP connect timeout in seconds.
• $wgHTTPImportTimeout – Timeout for HTTP requests done internally for transwiki imports, in seconds.
• $wgHTTPProxy – Proxy to use for cURL requests
• $wgHTTPTimeout – Timeout for HTTP requests done via cURL.
• $wgLocalHTTPProxy – Reverse proxy to use for requests to domains in $wgLocalVirtualHosts
• $wgLocalVirtualHosts – Local virtual hosts.

• $wgJobRunRate – Number of jobs to perform per request.
• $wgRunJobsAsync – Controls whether on-request jobs are run asynchronously or synchronously.
• $wgUpdateRowsPerJob – Number of rows to update per job.
• $wgUpdateRowsPerQuery – Number of rows to update per query.

• $wgWikiFarmSettingsDirectory – A directory that contains site-specific configuration files.
• $wgWikiFarmSettingsExtension – The file extension to be used when looking up site-specific settings files in $wgWikiFarmSettingsDirectory , such as 'json' or 'yaml'.
• $wgWikiFarmSiteDetector (removed in 1.39) – Callback to use to determine the name of the requested site for the current request.

• $wgActorTableSchemaMigrationStage (removed in 1.39) – actor table schema migration stage.
• $wgContentHandlerUseDB (removed in 1.35) – Whether to use the database fields introduced by the ContentHandler facility
• $wgEditRecoveryExpiry (introduced in 1.42) – Number of seconds to keep Edit Recovery data after the edit is stored.
• $wgElementTiming (removed in 1.39) – Enable Element Timing.
• $wgEnableEditRecovery (introduced in 1.41) – Whether to enable the client-side Edit Recovery feature.
• $wgEnableProtectionIndicators (introduced in 1.43) – Whether to show indicators on a page when it is protected.
• $wgEventRelayerConfig – Mapping of event channels (or channel categories) to EventRelayer configuration.
• $wgFeaturePolicyReportOnly – List of Feature Policy Reporting types to enable.
• $wgOutputPipelineStages (introduced in 1.43) – OutputPipelineStages to add to the DefaultOutputPipeline.
• $wgOriginTrials – Origin Trials tokens.
• $wgPagePropsHaveSortkey (removed in 1.36) – Set to false if the page_props table doesn't have a pp_sortkey column
• $wgPingback – If true, MediaWiki will report back data about its installation from time to time to aid developers
• $wgPopularPasswordFile (removed in 1.35) – Where popular password file is located.
• $wgPriorityHintsRatio (removed in 1.39) – Ratio of requests that should get Priority Hints when the feature is enabled.
• $wgPriorityHints (removed in 1.39) – Enable client-side Priority Hints.
• $wgRedirectOnLogin – Redirect users to page on login
• $wgReportToEndpoints – List of endpoints for the Reporting API.
• $wgReportToExpiry – Expiry of the endpoint definition for the Reporting API.
• $wgShowDiffToggleSwitch (introduced in 1.41) (deprecated in 1.41) – Specifies if users should see the inline switch in diff pages.
• $wgShowLogoutConfirmation (introduced in 1.42) – Whether to display a confirmation screen during user log out.
• $wgSkinsPreferred – List of preferred skins to be listed higher in Special:Preferences
• $wgSpecialContributeSkinsDisabled (introduced in 1.40) (removed in 1.40) – List of skins to not show the Special:Contribute page
• $wgSpecialContributeSkinsEnabled (introduced in 1.40) – List of skins that show a link to the Special:Contribute page
• $wgTranslationAliasesDirs (introduced in 1.42) – Message directories containing JSON files for localisation of special page aliases.
• $wgUseCodexSpecialBlock (introduced in 1.42) – Whether to use Codex in Special:Block form.
• $wgVirtualRestConfig – REST services configuration
• $wgWikiDiff2MovedParagraphDetectionCutoff (deprecated in 1.34) – This setting controls the maximum number of paragraphs to compare before it bails out.

• Manual:Configuration for developers - how to set and retrieve configuration variables.
• Extension registration#Configs (Your extension/skins settings) - how to register new configuration variables for extensions and skins.