Global functions used everywhere. More...

Functions
	mimeTypeMatch ( $type, $avail)
	Checks if a given MIME type matches any of the keys in the given array.

	wfAcceptToPrefs ( $accept, $def=' /')
	Converts an Accept-* header into an array mapping string values to quality factors.

	wfAppendQuery ( $url, $query)
	Append a query string to an existing URL, which may or may not already have query string parameters already.

	wfAppendToArrayIfNotDefault ( $key, $value, $default, &$changed)
	Appends to second array if $value differs from that in $default.

	wfArrayDiff2 ( $a, $b)
	Like array_diff( $a, $b ) except that it works with two-dimensional arrays.

	wfArrayDiff2_cmp ( $a, $b)

	wfArrayInsertAfter (array $array, array $insert, $after)
	Insert array into another array after the specified KEY

	wfArrayPlus2d (array $baseArray, array $newValues)
	Merges two (possibly) 2 dimensional arrays into the target array ($baseArray).

	wfArrayToCgi ( $array1, $array2=null, $prefix='')
	This function takes one or two arrays as input, and returns a CGI-style string, e.g.

	wfAssembleUrl ( $urlParts)
	This function will reassemble a URL parsed with wfParseURL.

	wfBacktrace ( $raw=null)
	Get a debug backtrace as a string.

	wfBaseName ( $path, $suffix='')
	Return the final portion of a pathname.

	wfBoolToStr ( $value)
	Convenience function converts boolean values into "true" or "false" (string) values.

	wfCanIPUseHTTPS ( $ip)
	Determine whether the client at a given source IP is likely to be able to access the wiki via HTTPS.

	wfCgiToArray ( $query)
	This is the logical opposite of wfArrayToCgi(): it accepts a query string as its argument and returns the same string in array form.

	wfClearOutputBuffers ()
	More legible than passing a 'false' parameter to wfResetOutputBuffers():

	wfClientAcceptsGzip ( $force=false)
	Whether the client accept gzip encoding.

	wfConfiguredReadOnlyReason ()
	Get the value of $wgReadOnly or the contents of $wgReadOnlyFile.

	wfDebug ( $text, $dest='all', array $context=[])
	Sends a line to the debug log if enabled or, optionally, to a comment in output.

	wfDebugBacktrace ( $limit=0)
	Safety wrapper for debug_backtrace().

	wfDebugLog ( $logGroup, $text, $dest='all', array $context=[])
	Send a line to a supplementary debug log file, if configured, or main debug log if not.

	wfDebugMem ( $exact=false)
	Send a line giving PHP memory usage.

	wfDeprecated ( $function, $version=false, $component=false, $callerOffset=2)
	Throws a warning that $function is deprecated.

	wfDiff ( $before, $after, $params='-u')
	Returns unified plain-text diff of two texts.

	wfEscapeShellArg (... $args)
	Version of escapeshellarg() that works better on Windows.

	wfEscapeWikiText ( $text)
	Escapes the given text so that it may be output using addWikiText() without any linking, formatting, etc.

	wfExpandIRI ( $url)
	Take a URL, make sure it's expanded to fully qualified, and replace any encoded non-ASCII Unicode characters with their UTF-8 original forms for more compact display and legibility for local audiences.

	wfExpandUrl ( $url, $defaultProto=PROTO_CURRENT)
	Expand a potentially local URL to a fully-qualified URL.

	wfFindFile ( $title, $options=[])
	Find a file.

	wfForeignMemcKey ( $db, $prefix,... $args)
	Make a cache key for a foreign DB.

	wfFormatStackFrame ( $frame)
	Return a string representation of frame.

	wfGetAllCallers ( $limit=3)
	Return a string consisting of callers in the stack.

	wfGetCache ( $cacheType)
	Get a specific cache object.

	wfGetCaller ( $level=2)
	Get the name of the function which called this function wfGetCaller( 1 ) is the function with the wfGetCaller() call (ie.

	wfGetDB ( $db, $groups=[], $wiki=false)
	Get a Database object.

	wfGetLangObj ( $langcode=false)
	Return a Language object from $langcode.

	wfGetLB ( $wiki=false)
	Get a load balancer object.

	wfGetMainCache ()
	Get the main cache object.

	wfGetMessageCacheStorage ()
	Get the cache object used by the message cache.

	wfGetNull ()
	Get a platform-independent path to the null file, e.g.

	wfGetPrecompiledData ( $name)
	Get an object from the precompiled serialized directory.

	wfGetRusage ()
	Get system resource usage of current request context.

	wfGetScriptUrl ()
	Get the script URL.

	wfGetServerUrl ( $proto)
	Get the wiki's "server", i.e.

	wfGlobalCacheKey (... $args)
	Make a cache key with database-agnostic prefix.

	wfHostname ()
	Get host name of the current machine, for use in error reporting.

	wfHttpError ( $code, $label, $desc)
	Provide a simple HTTP error.

	wfIncrStats ( $key, $count=1)
	Increment a statistics counter.

	wfIniGetBool ( $setting)
	Safety wrapper around ini_get() for boolean settings.

	wfIsBadImage ( $name, $contextTitle=false, $blacklist=null)
	Determine if an image exists on the 'bad image list'.

	wfIsCLI ()
	Check if we are running from the commandline.

	wfIsDebugRawPage ()
	Returns true if debug logging should be suppressed if $wgDebugRawPage = false.

	wfIsHHVM ()
	Check if we are running under HHVM.

	wfIsInfinity ( $str)
	Determine input string is represents as infinity.

	wfIsWindows ()
	Check if the operating system is Windows.

	wfLoadExtension ( $ext, $path=null)
	Load an extension.

	wfLoadExtensions (array $exts)
	Load multiple extensions at once.

	wfLoadSkin ( $skin, $path=null)
	Load a skin.

	wfLoadSkins (array $skins)
	Load multiple skins at once.

	wfLocalFile ( $title)
	Get an object referring to a locally registered file.

	wfLogDBError ( $text, array $context=[])
	Log for database errors.

	wfLogProfilingData ()

	wfLogWarning ( $msg, $callerOffset=1, $level=E_USER_WARNING)
	Send a warning as a PHP error and the debug log.

	wfMatchesDomainList ( $url, $domains)
	Check whether a given URL has a domain that occurs in a given set of domains.

	wfMemcKey (... $args)
	Make a cache key for the local wiki.

	wfMemoryLimit ( $newLimit)
	Raise PHP's memory limit (if needed).

	wfMerge ( $old, $mine, $yours, &$result, &$mergeAttemptResult=null)
	wfMerge attempts to merge differences between three texts.

	wfMergeErrorArrays (... $args)
	Merge arrays in the style of getUserPermissionsErrors, with duplicate removal e.g.

	wfMessage ( $key,... $params)
	This is the function for getting translated interface messages.

	wfMessageFallback (... $keys)
	This function accepts multiple message keys and returns a message instance for the first message which is non-empty.

	wfMkdirParents ( $dir, $mode=null, $caller=null)
	Make directory, and make all parent directories if they don't exist.

	wfMsgReplaceArgs ( $message, $args)
	Replace message parameter keys on the given formatted output.

	wfNegotiateType ( $cprefs, $sprefs)
	Returns the 'best' match between a client's requested internet media types and the server's list of available types.

	wfObjectToArray ( $objOrArray, $recursive=true)
	Recursively converts the parameter (an object) to an array with the same data.

	wfParseUrl ( $url)
	parse_url() work-alike, but non-broken.

	wfPercent ( $nr, $acc=2, $round=true)

	wfQueriesMustScale ()
	Should low-performance queries be disabled?

	wfRandom ()
	Get a random decimal value in the domain of [0, 1), in a way not likely to give duplicate values for any realistic number of articles.

	wfRandomString ( $length=32)
	Get a random string containing a number of pseudo-random hex characters.

	wfReadOnly ()
	Check whether the wiki is in read-only mode.

	wfReadOnlyReason ()
	Check if the site is in read-only mode and return the message if so.

	wfRecursiveRemoveDir ( $dir)
	Remove a directory and all its content.

	wfRelativePath ( $path, $from)
	Generate a relative path name to the given file.

	wfRemoveDotSegments ( $urlPath)
	Remove all dot-segments in the provided URL path.

	wfReportTime ( $nonce=null)
	Returns a script tag that stores the amount of time it took MediaWiki to handle the request in milliseconds as 'wgBackendResponseTime'.

	wfResetOutputBuffers ( $resetGzipEncoding=true)
	Clear away any user-level output buffers, discarding contents.

	wfScript ( $script='index')
	Get the path to a specified script file, respecting file extensions; this is a wrapper around $wgScriptPath etc.

	wfSetBit (&$dest, $bit, $state=true)
	As for wfSetVar except setting a bit.

	wfSetupSession ( $sessionId=false)
	Initialise php session.

	wfSetVar (&$dest, $source, $force=false)
	Sets dest to source and returns the original value of dest If source is NULL, it just returns the value, it doesn't set the variable If force is true, it will set the value even if source is NULL.

	wfShellExec ( $cmd, &$retval=null, $environ=[], $limits=[], $options=[])
	Execute a shell command, with time and memory limits mirrored from the PHP configuration if supported.

	wfShellExecWithStderr ( $cmd, &$retval=null, $environ=[], $limits=[])
	Execute a shell command, returning both stdout and stderr.

	wfShellWikiCmd ( $script, array $parameters=[], array $options=[])
	Generate a shell-escaped command line string to run a MediaWiki cli script.

	wfShorthandToInteger ( $string='', $default=-1)
	Converts shorthand byte notation to integer form.

	wfShowingResults ( $offset, $limit)

	wfStringToBool ( $val)
	Convert string value to boolean, when the following are interpreted as true:

	wfStripIllegalFilenameChars ( $name)
	Replace all invalid characters with '-'.

	wfTempDir ()
	Tries to get the system directory for temporary files.

	wfThumbIsStandard (File $file, array $params)
	Returns true if these thumbnail parameters match one that MediaWiki requests from file description pages and/or parser output.

	wfTimestamp ( $outputtype=TS_UNIX, $ts=0)
	Get a timestamp string in one of various formats.

	wfTimestampNow ()
	Convenience function; returns MediaWiki timestamp for the present time.

	wfTimestampOrNull ( $outputtype=TS_UNIX, $ts=null)
	Return a formatted timestamp, or null if input is null.

	wfTransactionalTimeLimit ()
	Set PHP's time limit to the larger of php.ini or $wgTransactionalTimeLimit.

	wfUnpack ( $format, $data, $length=false)
	Wrapper around php's unpack.

	wfUrlencode ( $s)
	We want some things to be included as literal characters in our title URLs for prettiness, which urlencode encodes by default.

	wfUrlProtocols ( $includeProtocolRelative=true)
	Returns a regular expression of url protocols.

	wfUrlProtocolsWithoutProtRel ()
	Like wfUrlProtocols(), but excludes '//' from the protocol list.

	wfVarDump ( $var)
	A wrapper around the PHP function var_export().

	wfWaitForSlaves ( $ifWritesSince=null, $wiki=false, $cluster=false, $timeout=null)
	Waits for the replica DBs to catch up to the master position.

	wfWarn ( $msg, $callerOffset=1, $level=E_USER_NOTICE)
	Send a warning either to the debug log or in a PHP error depending on $wgDevelopmentWarnings.

	wfWikiID ()
	Get an ASCII string identifying this wiki This is used as a prefix in memcached keys.

Detailed Description

Global functions used everywhere.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. http://www.gnu.org/copyleft/gpl.html

Definition in file GlobalFunctions.php.

Function Documentation

◆ mimeTypeMatch()

mimeTypeMatch	(	$type,
		$avail
	)

Checks if a given MIME type matches any of the keys in the given array.

Basic wildcards are accepted in the array keys.

Returns the matching MIME type (or wildcard) if a match, otherwise NULL if no match.

Parameters

string	$type
array	$avail

Returns: string

Access:\n private

Definition at line 1776 of file GlobalFunctions.php.

References $type.

Referenced by wfNegotiateType().

◆ wfAcceptToPrefs()

wfAcceptToPrefs	(	$accept,
		$def = `'/'`
	)

Converts an Accept-* header into an array mapping string values to quality factors.

Parameters

string	$accept
string	$def	Default

Returns: float[] Associative array of string => float pairs

Definition at line 1740 of file GlobalFunctions.php.

◆ wfAppendQuery()

wfAppendQuery	(	$url,
		$query
	)

Append a query string to an existing URL, which may or may not already have query string parameters already.

If so, they will be combined.

Parameters

string	$url
string \| string[]	$query	String or associative array

Returns: string

Definition at line 439 of file GlobalFunctions.php.

References wfArrayToCgi().

Referenced by SpecialPage\addFeedLinks(), SpecialRedirect\dispatchLog(), SpecialRedirect\dispatchPage(), SpecialRedirect\dispatchRevision(), SpecialApiHelp\execute(), SpecialContributions\execute(), LoginSignupSpecialPage\execute(), RedirectSpecialPage\execute(), SpecialRecentChanges\execute(), ImportSiteScripts\execute(), ImportSiteScripts\fetchScriptList(), ApiHelp\fixHelpLinks(), FileRepo\getDescriptionRenderUrl(), OutputPage\getHeadLinksArray(), ApiHelp\getHelpInternal(), FindHooks\getHooksFromOnlineDocCategory(), MediaWiki\Linker\LinkRenderer\getLinkURL(), Title\getLocalURL(), ContentSecurityPolicy\getReportUri(), ImageHandler\getScriptedTransform(), File\getTransformScript(), Linker\getUploadUrl(), ResourceLoaderImage\getUrl(), ForeignAPIRepo\httpGetCached(), Linker\makeThumbLink2(), FileRepo\makeUrl(), ImportStreamSource\newFromInterwiki(), MediaWiki\Site\MediaWikiPageNameNormalizer\normalizePageName(), MediaWiki\Sparql\SparqlClient\query(), and SquidPurgeClient\queuePurge().

◆ wfAppendToArrayIfNotDefault()

wfAppendToArrayIfNotDefault	(		$key,
			$value,
			$default,
		&	$changed
	)

Appends to second array if $value differs from that in $default.

Parameters

string \| int	$key
mixed	$value
mixed	$default
array	&$changed	Array to alter

Exceptions

MWException

Definition at line 153 of file GlobalFunctions.php.

◆ wfArrayDiff2()

wfArrayDiff2	(	$a,
		$b
	)

Like array_diff( $a, $b ) except that it works with two-dimensional arrays.

Parameters

array	$a
array	$b

Returns: array

Definition at line 113 of file GlobalFunctions.php.

Referenced by WikiPage\doRollback(), EditPage\getEditPermissionErrors(), and UploadBase\verifyTitlePermissions().

◆ wfArrayDiff2_cmp()

wfArrayDiff2_cmp	(	$a,
		$b
	)

Parameters

array \| string	$a
array \| string	$b

Returns: int

Definition at line 122 of file GlobalFunctions.php.

◆ wfArrayInsertAfter()

wfArrayInsertAfter	(	array	$array,
		array	$insert,
			$after
	)

Insert array into another array after the specified KEY

Parameters

array	$array	The array.
array	$insert	The array to insert.
mixed	$after	The key to insert after. Callers need to make sure the key is set.

Returns: array

Definition at line 207 of file GlobalFunctions.php.

References $keys.

Referenced by ApiComparePages\getAllowedParams(), SpecialDeletedContributions\getSubTitle(), and UpdateExtensionJsonSchema\updateTo2().

◆ wfArrayPlus2d()

wfArrayPlus2d	(	array	$baseArray,
		array	$newValues
	)

Merges two (possibly) 2 dimensional arrays into the target array ($baseArray).

Values that exist in both values will be combined with += (all values of the array of $newValues will be added to the values of the array of $baseArray, while values, that exists in both, the value of $baseArray will be used).

Parameters

array	$baseArray	The array where you want to add the values of $newValues to
array	$newValues	An array with new values

Returns: array The combined array

Since: 1.26

Definition at line 3046 of file GlobalFunctions.php.

Referenced by HTMLUserTextField\__construct(), and ExtensionRegistry\exportExtractedData().

◆ wfArrayToCgi()

wfArrayToCgi	(	$array1,
		$array2 = `null`,
		$prefix = `''`
	)

This function takes one or two arrays as input, and returns a CGI-style string, e.g.

"days=7&limit=100". Options in the first array override options in the second. Options set to null or false will not be output.

Parameters

array	$array1	( String\|Array )
array \| null	$array2	( String\|Array )
string	$prefix

Returns: string

Definition at line 347 of file GlobalFunctions.php.

References wfArrayToCgi().

Referenced by WebRequest\appendQueryArray(), SkinTemplate\buildPersonalUrls(), SpecialPage\checkLoginSecurityLevel(), SpecialNewpages\execute(), PhpHttpRequest\execute(), PopulateInterwiki\fetchLinks(), Title\fixUrlQueryArgs(), AllMessagesTablePager\formatValue(), WebInstallerOptions\getCCPartnerUrl(), MediaTransformOutput\getDescLinkAttribs(), getEscapedProfileUrl(), FormAction\getForm(), FormSpecialPage\getForm(), SpecialRunJobs\getQuerySignature(), WebInstaller\getUrl(), AuthManagerSpecialPage\handleReauthBeforeExecute(), UserNotLoggedIn\report(), SkinTemplate\setupTemplateForOutput(), PurgeAction\show(), EditPage\showHeader(), OutputPage\showPermissionsErrorPage(), ChangesListSpecialPage\validateOptions(), wfAppendQuery(), and wfArrayToCgi().

◆ wfAssembleUrl()

wfAssembleUrl ( $urlParts )

This function will reassemble a URL parsed with wfParseURL.

This is useful if you need to edit part of a URL and put it back together.

This is the basic structure used (brackets contain keys for $urlParts): [scheme][delimiter][user]:[pass]@[host]:[port][path]?[query]#[fragment]

Todo:: Need to integrate this into wfExpandUrl (see T34168)

Since: 1.19

Parameters

array $urlParts URL parts, as output from wfParseUrl

Returns: string URL assembled from its component parts

Definition at line 587 of file GlobalFunctions.php.

Referenced by ApiCSPReport\matchUrlPattern(), ApiCSPReport\originFromUrl(), and wfExpandUrl().

◆ wfBacktrace()

wfBacktrace ( $raw = null )

Get a debug backtrace as a string.

Parameters

bool | null $raw If true, the return value is plain text. If false, HTML. Defaults to $wgCommandLineMode if unset.

Returns: string

Since: 1.25 Supports $raw parameter.

Definition at line 1397 of file GlobalFunctions.php.

References $file, $line, $wgCommandLineMode, and wfDebugBacktrace().

Referenced by MWDebug\deprecated(), and MediaWiki\Revision\RevisionStore\getTitle().

◆ wfBaseName()

wfBaseName	(	$path,
		$suffix = `''`
	)

Return the final portion of a pathname.

Reimplemented because PHP5's "basename()" is buggy with multibyte text. https://bugs.php.net/bug.php?id=33898

PHP's basename() only considers '\' a pathchar on Windows and Netware. We'll consider it so always, as we don't want '\s' in our Unix paths either.

Parameters

string	$path
string	$suffix	String to remove if present

Returns: string

Definition at line 2368 of file GlobalFunctions.php.

References $matches, and $path.

Referenced by Exif\__construct(), ImageBuilder\checkMissingImage(), FileOpPerfTest\doPerfTest(), ImportImages\execute(), wfRelativePath(), and wfStripIllegalFilenameChars().

◆ wfBoolToStr()

wfBoolToStr ( $value )

Convenience function converts boolean values into "true" or "false" (string) values.

Parameters

bool $value

Returns: string

Definition at line 2663 of file GlobalFunctions.php.

Referenced by ApiRsd\formatRsdApiList().

◆ wfCanIPUseHTTPS()

wfCanIPUseHTTPS ( $ip )

Determine whether the client at a given source IP is likely to be able to access the wiki via HTTPS.

Parameters

string $ip The IPv4/6 address in the normal human-readable form

Returns: bool

Definition at line 2927 of file GlobalFunctions.php.

Referenced by LoginSignupSpecialPage\execute(), MediaWiki\Preferences\DefaultPreferencesFactory\getFormDescriptor(), and User\requiresHTTPS().

◆ wfCgiToArray()

wfCgiToArray ( $query )

This is the logical opposite of wfArrayToCgi(): it accepts a query string as its argument and returns the same string in array form.

This allows compatibility with legacy functions that accept raw query strings instead of nice arrays. Of course, keys and values are urldecode()d.

Parameters

string $query Query string

Returns: string[] Array version of input

Definition at line 392 of file GlobalFunctions.php.

References $keys.

Referenced by SkinTemplate\buildPersonalUrls(), Linker\makeBrokenImageLinkObj(), SpecialChangeEmail\onSuccess(), OutputPage\returnToMain(), LoginHelper\showReturnToPage(), MediaWiki\Storage\SqlBlobStore\splitBlobAddress(), and SpecialCreateAccount\successfulAction().

◆ wfClearOutputBuffers()

wfClearOutputBuffers ( )

More legible than passing a 'false' parameter to wfResetOutputBuffers():

Clear away output buffers, but keep the Content-Encoding header produced by ob_gzhandler, if any.

This should be used for HTTP 304 responses, where you need to preserve the Content-Encoding header of the real result, but also need to suppress the output of ob_gzhandler to keep to spec and avoid breaking Firefox in rare cases where the headers and body are broken over two packets.

Definition at line 1728 of file GlobalFunctions.php.

References wfResetOutputBuffers().

Referenced by ApiMain\checkConditionalRequestHeaders(), and OutputPage\checkLastModified().

◆ wfClientAcceptsGzip()

wfClientAcceptsGzip ( $force = false )

Whether the client accept gzip encoding.

Uses the Accept-Encoding header to check if the client supports gzip encoding. Use this when considering to send a gzip-encoded response to the client.

Parameters

bool $force Forces another check even if we already have a cached result.

Returns: bool

Definition at line 1496 of file GlobalFunctions.php.

References wfDebug().

Referenced by MediaWiki\OutputHandler\handleGzip(), HTMLFileCache\loadFromFileCache(), and HTMLFileCache\saveToFileCache().

◆ wfConfiguredReadOnlyReason()

wfConfiguredReadOnlyReason ( )

Get the value of $wgReadOnly or the contents of $wgReadOnlyFile.

Returns: string|bool String when in read-only mode; false otherwise

Since: 1.27

Definition at line 1194 of file GlobalFunctions.php.

Referenced by FileBackendGroup\initFromGlobals(), and JobQueueGroup\singleton().

◆ wfDebug()

wfDebug	(		$text,
			$dest = `'all'`,
		array	$context = `[]`
	)

Sends a line to the debug log if enabled or, optionally, to a comment in output.

In normal operation this is a NOP.

Controlling globals: $wgDebugLogFile - points to the log file $wgDebugRawPage - if false, 'action=raw' hits will not result in debug output. $wgDebugComments - if on, some debug items may appear in comments in the HTML output.

Since: 1.25 support for additional context data

Parameters

string	$text
string \| bool	$dest	Destination of the message: 'all': both to the log and HTML (debug toolbar or HTML comments) 'private': excluded from HTML output For backward compatibility, it can also take a boolean: true: same as 'all' false: same as 'private'
array	$context	Additional logging context data

Definition at line 913 of file GlobalFunctions.php.

References $context, $wgDebugLogPrefix, $wgDebugRawPage, $wgDebugTimestamps, and wfIsDebugRawPage().

◆ wfDebugBacktrace()

wfDebugBacktrace ( $limit = 0 )

Safety wrapper for debug_backtrace().

Will return an empty array if debug_backtrace is disabled, otherwise the output from debug_backtrace() (trimmed).

Parameters

int $limit This parameter can be used to limit the number of stack frames returned

Returns: array Array of backtrace information

Definition at line 1369 of file GlobalFunctions.php.

References wfDebug().

Referenced by MWDebug\getCallerDescription(), wfBacktrace(), wfGetAllCallers(), and wfGetCaller().

◆ wfDebugLog()

wfDebugLog	(		$logGroup,
			$text,
			$dest = `'all'`,
		array	$context = `[]`
	)

Send a line to a supplementary debug log file, if configured, or main debug log if not.

To configure a supplementary log file, set $wgDebugLogGroups[$logGroup] to a string filename or an associative array mapping 'destination' to the desired filename. The associative array may also contain a 'sample' key with an integer value, specifying a sampling factor. Sampled log events will be emitted with a 1 in N random chance.

Since: 1.23 support for sampling log messages via $wgDebugLogGroups.; 1.25 support for additional context data; 1.25 sample behavior dependent on configured $wgMWLoggerDefaultSpi

Parameters

string	$logGroup
string	$text
string \| bool	$dest	Destination of the message: 'all': both to the log and HTML (debug toolbar or HTML comments) 'private': only to the specific log if set in $wgDebugLogGroups and discarded otherwise For backward compatibility, it can also take a boolean: true: same as 'all' false: same as 'private'
array	$context	Additional logging context data

Definition at line 1007 of file GlobalFunctions.php.

References $context.

Referenced by GitInfo\__construct(), AutoLoader\autoload(), RCCacheEntryFactory\buildCLink(), RCCacheEntryFactory\buildDiffLink(), ApiMain\checkBotReadOnly(), UploadFromChunks\concatenateChunks(), IPTC\convIPTCHelper(), Exif\debug(), Exif\debugFile(), SectionProfiler\debugGroup(), WebPHandler\decodeLosslessChunkHeader(), WebPHandler\decodeLossyChunkHeader(), JobQueueRedis\doAck(), JobQueueRedis\doBatchPush(), JobQueueRedis\doPop(), DjVuHandler\doTransform(), SvgHandler\doTransform(), TransformationalImageHandler\doTransform(), LocalFileMoveBatch\execute(), CheckUsernames\execute(), ResourceLoaderFileModule\expandPackageFiles(), WebPHandler\extractMetadata(), WebPHandler\extractMetadataFromChunks(), PoolWorkArticleView\fallback(), FormatMetadata\formatCoords(), Message\formatListParam(), ParserCache\get(), IPTC\getCharset(), ContentHandler\getContentText(), ContentHandler\getForModelID(), ResourceLoaderImage\getImageData(), ParserCache\getKey(), RequestContext\getLanguage(), LocalFileMoveBatch\getMoveTriplets(), ResourceLoaderFileModule\getPackageFiles(), ResourceLoaderFileModule\getTemplates(), RequestContext\getTitle(), WebResponse\header(), CdnCacheUpdate\HTCPPurge(), User\inDnsBlacklist(), EditPage\internalAttemptSave(), User\isCreatableName(), MessageCache\load(), MessageCache\loadFromDB(), SquidPurgeClient\log(), MWLBFactory\logDeprecation(), PoolCounterWork\logError(), MediaHandler\logErrorForExternalProcess(), JobQueueFederated\logException(), ApiBase\logFeatureUsage(), ApiMain\logRequest(), Parser\makeLimitReport(), MediaWiki\maybeDoHttpsRedirect(), LocalFile\move(), MediaWiki\Site\MediaWikiPageNameNormalizer\normalizePageName(), IPTC\parse(), MessageCache\parse(), GitInfo\precomputeValues(), MediaWiki\preOutputCommit(), CdnCacheUpdate\purge(), ResourceLoaderFileModule\readStyleFile(), UploadFromUrl\reallyFetchFile(), MediaHandler\removeBadFile(), LocalFileMoveBatch\removeNonexistentFiles(), SquidPurgeClientPool\run(), ResourceLoaderModule\saveFileDependencies(), UploadFromUrl\saveTempFileChunk(), MWDebug\sendMessage(), WebResponse\setCookie(), WebResponse\statusHeader(), and IPTC\timeHelper().

◆ wfDebugMem()

wfDebugMem ( $exact = false )

Send a line giving PHP memory usage.

Parameters

bool $exact Print exact byte values instead of kibibytes (default: false)

Definition at line 972 of file GlobalFunctions.php.

References wfDebug().

◆ wfDeprecated()

wfDeprecated	(	$function,
		$version = `false`,
		$component = `false`,
		$callerOffset = `2`
	)

Throws a warning that $function is deprecated.

Parameters

string	$function	Function that is deprecated.
string \| bool	$version	Version of MediaWiki that the function was deprecated in (Added in 1.19).
string \| bool	$component	Component to which the function belongs. If false, it is assumed the function is in MediaWiki core (Added in 1.19).
int	$callerOffset	How far up the call stack is the original caller. 2 = function that called the function that called wfDeprecated (Added in 1.20).

Exceptions

Exception If the MediaWiki version number is not a string or boolean.

Definition at line 1044 of file GlobalFunctions.php.

Referenced by FileBasedSiteLookup\__construct(), PasswordReset\__construct(), SearchResultSet\__construct(), SearchUpdate\__construct(), ApiResult\__construct(), Preprocessor_DOM\__construct(), ConfiguredReadOnlyMode\__construct(), ParserFactory\__construct(), SearchResult\__construct(), ResourceLoader\__construct(), MediaWikiTitleCodec\__construct(), ProfilerOutputDb\__construct(), MediaWiki\Widget\Search\SimpleSearchResultWidget\__construct(), MediaWiki\Widget\Search\SimpleSearchResultSetWidget\__construct(), LinkCache\__construct(), __get(), __set(), DeprecatedGlobal\_newObject(), ApiModuleManager\addModule(), User\addNewUserLogEntryAutoCreate(), OutputPage\addVaryHeader(), Parser\areSubpagesAllowed(), Parser\armorLinks(), Sanitizer\attributeWhitelist(), BaseSearchResultSet\bcIterator(), Hooks\callHook(), MediaWiki\Auth\AuthManager\callLegacyAuthPlugin(), ActorMigration\checkDeprecation(), User\checkPassword(), ChangesListSpecialPage\checkStructuredFilterUiEnabled(), SpecialWatchlist\checkStructuredFilterUiEnabled(), User\checkTemporaryPassword(), ApiBase\checkTitleUserPermissions(), Parser\createAssocArgs(), Http\createMultiClient(), User\createNew(), Parser\disableCache(), Parser\doAllQuotes(), Parser\doDoubleUnderscore(), Article\doEditContent(), Parser\doHeadings(), Parser\doMagicLinks(), Parser\doTableStuff(), Argon2Password\equals(), InvalidPassword\equals(), Password\equals(), Maintenance\error(), Skin\escapeSearchLink(), SpecialExpandTemplates\execute(), Interwiki\fetch(), SpecialRecentChanges\filterByCategories(), Title\fixUrlQueryArgs(), Parser\formatHeadings(), MagicWord\get(), Interwiki\getAllPrefixes(), Maintenance\getArg(), ApiQueryUserInfo\getBlockInfo(), MagicWord\getCacheTTL(), ResourceLoaderContext\getConfig(), EditPage\getContextTitle(), Parser\getConverterLanguage(), WikiPage\getDeletionUpdates(), ResourceLoaderModule\getDeprecationInformation(), MagicWord\getDoubleUnderscoreArray(), WebInstaller\getErrorBox(), SpecialContributions\getForm(), Message\getFormat(), Parser\getImageParams(), ActorMigration\getInsertValuesWithTempTable(), MWLBFactory\getLBFactoryClass(), MediaWiki\Storage\SqlBlobStore\getLegacyEncodingConversionLang(), SVGMetadataExtractor\getMetadata(), MediaWiki\Revision\RevisionStore\getNextRevision(), HTMLInfoField\getOOUI(), MediaWiki\Special\SpecialPageFactory\getPage(), MediaWiki\Revision\RevisionStore\getPreviousRevision(), Http\getProxy(), Revision\getRevisionText(), Skin\getSkinNameMessages(), StripState\getSubState(), MagicWord\getSubstIDs(), Profiler\getTemplated(), Parser\getTitle(), MagicWord\getVariableIDs(), Parser\getVariableValue(), ObjectCache\getWANInstance(), WebInstaller\getWarningBox(), Maintenance\hasArg(), User\inDnsBlacklist(), Parser\initialiseVariables(), CommentStore\insertWithTempTable(), Parser\internalParseHalfParsed(), Interwiki\invalidateCache(), User\isLocallyBlockedProxy(), MediaWiki\Block\DatabaseBlock\isValid(), Parser\isValidHalfParsedText(), Interwiki\isValidInterwiki(), Title\isValidMoveOperation(), Title\isValidMoveTarget(), ExtensionRegistry\load(), Revision\loadFromId(), Parser\makeKnownLinkHolder(), ContentHandler\makeParserOptions(), ResourceLoader\makeVersionQuery(), Parser\maybeDoSubpageLink(), StripState\merge(), Title\moveSubpages(), Title\moveTo(), QuickTemplate\msgWiki(), BaseTemplate\msgWiki(), CommentStore\newKey(), ObjectCache\newWANCacheFromParams(), BaseSearchResultSet\next(), LanguageAr\normalize(), LanguageMl\normalize(), MWMessagePack\pack(), OutputPage\parse(), OutputPage\parseInline(), Parser\parseLinkParameter(), StreamFile\parseRange(), OutputPage\parserOptions(), Profiler\profileIn(), Profiler\profileOut(), SquidPurgeClient\queuePurge(), ExtensionRegistry\readFromQueue(), Sanitizer\removeHTMLtags(), Parser\replaceExternalLinks(), Parser\replaceInternalLinks(), Parser\replaceInternalLinks2(), Parser\replaceLinkHoldersText(), BaseSearchResultSet\rewind(), ApiQuerySearch\run(), WikiPage\selectFields(), User\selectFields(), StreamFile\send404Message(), Parser\serializeHalfParsedText(), setExtensionData(), MWTidy\setInstance(), User\setInternalPassword(), User\setPassword(), QuickTemplate\setRef(), Profiler\setTemplated(), Sanitizer\setupAttributeWhitelist(), ParserOptions\setWrapOutputClass(), MediaWiki\Block\AbstractBlock\shouldTrackWithCookie(), MediaWiki\Block\DatabaseBlock\shouldTrackWithCookie(), ApiQueryBase\showHiddenUsersAddBlockInfo(), LogEventsList\showOptions(), SpecialSearch\showResults(), Parser\splitWhitespace(), UploadBase\stashFile(), UploadFromChunks\stashFile(), Parser\stripAltText(), SpecialEmailUser\submit(), Parser\testPreprocess(), Parser\testPst(), Parser\testSrvus(), Parser\unserializeHalfParsedText(), Language\viewPrevNext(), wfGlobalCacheKey(), wfIsBadImage(), wfSetupSession(), and MediaWiki\Session\PHPSessionHandler\write().

◆ wfDiff()

wfDiff	(	$before,
		$after,
		$params = `'-u'`
	)

Returns unified plain-text diff of two texts.

"Useful" for machine processing of diffs.

Deprecated:: since 1.25, use DiffEngine/UnifiedDiffFormatter directly

Parameters

string	$before	The text before the changes.
string	$after	The text after the changes.
string	$params	Command-line options for the diff command.

Returns: string Unified diff of $before and $after

Definition at line 2288 of file GlobalFunctions.php.

References $wgDiff, wfDebug(), and wfTempDir().

Referenced by ParserDiffTest\__call(), CompareParserCache\execute(), and CompareParsers\processRevision().

◆ wfEscapeShellArg()

wfEscapeShellArg ( $args )

Version of escapeshellarg() that works better on Windows.

Originally, this fixed the incorrect use of single quotes on Windows (https://bugs.php.net/bug.php?id=26285) and the locale problems on Linux in PHP 5.2.6+ (bug backported to earlier distro releases of PHP).

Parameters

string|string[] ...$args strings to escape and glue together, or a single array of strings parameter

Returns: string

Deprecated:: since 1.30 use MediaWiki\Shell\Shell::escape()

Definition at line 2079 of file GlobalFunctions.php.

References $args.

◆ wfEscapeWikiText()

wfEscapeWikiText ( $text )

Escapes the given text so that it may be output using addWikiText() without any linking, formatting, etc.

making its way through. This is achieved by substituting certain characters with HTML entities. As required by the callers, "<nowiki>" is not used.

Parameters

string	$text	Text to be escaped
-taint	$text	escapes_html

Returns: string

Definition at line 1531 of file GlobalFunctions.php.

References $wgEnableMagicLinks, and $wgUrlProtocols.

◆ wfExpandIRI()

wfExpandIRI ( $url )

Take a URL, make sure it's expanded to fully qualified, and replace any encoded non-ASCII Unicode characters with their UTF-8 original forms for more compact display and legibility for local audiences.

Todo:: handle punycode domains too

Parameters

string $url

Returns: string

Definition at line 863 of file GlobalFunctions.php.

References $matches, and wfExpandUrl().

Referenced by Skin\printSource().

◆ wfExpandUrl()

wfExpandUrl	(	$url,
		$defaultProto = `PROTO_CURRENT`
	)

Expand a potentially local URL to a fully-qualified URL.

Assumes $wgServer is correct.

The meaning of the PROTO_* constants is as follows: PROTO_HTTP: Output a URL starting with http:// PROTO_HTTPS: Output a URL starting with https:// PROTO_RELATIVE: Output a URL starting with // (protocol-relative URL) PROTO_CURRENT: Output a URL starting with either http:// or https:// , depending on which protocol was used for the current incoming request PROTO_CANONICAL: For URLs without a domain, like /w/index.php , use $wgCanonicalServer. For protocol-relative URLs, use the protocol of $wgCanonicalServer PROTO_INTERNAL: Like PROTO_CANONICAL, but uses $wgInternalServer instead of $wgCanonicalServer

Todo:: this won't work with current-path-relative URLs like "subdir/foo.html", etc.

Parameters

string	$url	Either fully-qualified or a local path + query
string \| int \| null	$defaultProto	One of the PROTO_* constants. Determines the protocol to use if $url or $wgServer is protocol-relative

Returns: string|false Fully-qualified URL, current-path-relative URL or false if no valid URL can be constructed

Definition at line 491 of file GlobalFunctions.php.

References $wgCanonicalServer, $wgHttpsPort, $wgInternalServer, $wgRequest, $wgServer, PROTO_CANONICAL, PROTO_CURRENT, PROTO_HTTP, PROTO_HTTPS, PROTO_INTERNAL, wfAssembleUrl(), wfParseUrl(), and wfRemoveDotSegments().

Referenced by MWHttpRequest\__construct(), DumpCategoriesAsRdf\addDumpHeader(), ApiQuerySiteinfo\appendGeneralInfo(), ApiQuerySiteinfo\appendInterwikiMap(), ApiQuerySiteinfo\appendRightsInfo(), EmailNotification\composeCommonMailtext(), SpecialApiHelp\execute(), ApiQueryExternalLinks\execute(), ApiQueryIWLinks\execute(), ApiQueryLangLinks\execute(), WebInstallerWelcome\execute(), CdnCacheUpdate\expand(), ApiQueryInfo\extractPageInfo(), CoreParserFunctions\filepath(), MediaWiki\Widget\Search\InterwikiSearchResultSetWidget\footerHtml(), ApiParse\formatIWLinks(), ApiParse\formatLangLinks(), Title\getCanonicalURL(), File\getCanonicalUrl(), SpecialVersion\getEntryPointInfo(), RevertAction\getFormFields(), Title\getFullURL(), File\getFullUrl(), OutputPage\getHeadLinksArray(), ApiQueryImageInfo\getInfo(), LocalRepo\getInfo(), Title\getInternalURL(), ApiRsd\getRsdApiList(), FeedItem\getUniqueIdUnescaped(), MediaWiki\Widget\Search\SimpleSearchResultSetWidget\headerHtml(), ForeignAPIRepo\httpGet(), MediaWiki\Widget\Search\InterwikiSearchResultSetWidget\iwIcon(), RevertAction\onSuccess(), AtomFeed\outHeader(), RSSFeed\outHeader(), AtomFeed\outItem(), RSSFeed\outItem(), OutputPage\output(), SpecialUploadStash\outputRemoteScaledThumb(), MediaWiki\performAction(), FileDeleteForm\prepareMessage(), CSSMin\remapOne(), ApiQueryExtLinksUsage\run(), ApiOpenSearch\search(), SearchSuggestion\setSuggestedTitle(), MediaWiki\shouldDoHttpRedirect(), EditPage\showIntro(), ApiMain\substituteResultWithError(), File\transform(), MediaWiki\tryNormaliseRedirect(), wfExpandIRI(), wfGetServerUrl(), and wfStreamThumb().

◆ wfFindFile()

wfFindFile	(	$title,
		$options = `[]`
	)

Find a file.

Deprecated:: since 1.34, use MediaWikiServices

Parameters

string \| LinkTarget	$title	String or LinkTarget object
array	$options	Associative array of options (see RepoGroup::findFile)

Returns: File|bool File, or false if the file does not exist

Definition at line 2584 of file GlobalFunctions.php.

References $title.

◆ wfForeignMemcKey()

wfForeignMemcKey	(	$db,
		$prefix,
		$args
	)

Make a cache key for a foreign DB.

Must match what wfMemcKey() would produce in context of the foreign wiki.

Parameters

string	$db
string	$prefix
	string	...$args

Returns: string

Definition at line 2493 of file GlobalFunctions.php.

References $args.

Referenced by ForeignDBRepo\getSharedCacheKey().

◆ wfFormatStackFrame()

wfFormatStackFrame ( $frame )

Return a string representation of frame.

Parameters

array $frame

Returns: string

Definition at line 1465 of file GlobalFunctions.php.

Referenced by wfGetCaller().

◆ wfGetAllCallers()

wfGetAllCallers ( $limit = 3 )

Return a string consisting of callers in the stack.

Useful sometimes for profiling specific points.

Parameters

int $limit The maximum depth of the stack frame to return, or false for the entire stack.

Returns: string

Definition at line 1450 of file GlobalFunctions.php.

References wfDebugBacktrace().

Referenced by MediaWiki\Session\SessionBackend\addData(), MediaWiki\Session\SessionBackend\dirty(), RequestContext\getTitle(), MessageCache\parse(), OutputPage\parserOptions(), and MediaWiki\Session\SessionBackend\renew().

◆ wfGetCache()

wfGetCache ( $cacheType )

Get a specific cache object.

Deprecated:: since 1.32, use ObjectCache::getInstance() instead

Parameters

int | string $cacheType A CACHE_* constants, or other key in $wgObjectCaches

Returns: BagOStuff

Definition at line 2828 of file GlobalFunctions.php.

Referenced by SpecialVersion\getCreditsForExtension(), CacheHelper\initCaching(), ForkController\initChild(), and CacheHelper\saveCache().

◆ wfGetCaller()

wfGetCaller ( $level = 2 )

Get the name of the function which called this function wfGetCaller( 1 ) is the function with the wfGetCaller() call (ie.

FUNCTION) wfGetCaller( 2 ) [default] is the caller of the function running wfGetCaller() wfGetCaller( 3 ) is the parent of that.

Parameters

int $level

Returns: string

Definition at line 1434 of file GlobalFunctions.php.

References wfDebugBacktrace(), and wfFormatStackFrame().

Referenced by StubObject\_unstub(), DeferredUpdates\addCallableUpdate(), MediaWiki\Shell\Command\execute(), MWDebug\log(), MediaWiki\HeaderCallback\warnIfHeadersSent(), wfShellExec(), and wfShellExecWithStderr().

◆ wfGetDB()

wfGetDB	(	$db,
		$groups = `[]`,
		$wiki = `false`
	)

Get a Database object.

Parameters

int	$db	Index of the connection to get. May be DB_MASTER for the master (for write queries), DB_REPLICA for potentially lagged read queries, or an integer >= 0 for a particular server.
string \| string[]	$groups	Query groups. An array of group names that this query belongs to. May contain a single string if the query is only in one group.
string \| bool	$wiki	The wiki ID, or false for the current wiki

Note: multiple calls to wfGetDB(DB_REPLICA) during the course of one request will always return the same object, unless the underlying connection or load balancer is manually destroyed.

Note 2: use $this->getDB() in maintenance scripts that may be invoked by updater to ensure that a proper database is being updated.

Todo:: Replace calls to wfGetDB with calls to LoadBalancer::getConnection() on an injected instance of LoadBalancer.

Returns: \Wikimedia\Rdbms\DBConnRef

Definition at line 2555 of file GlobalFunctions.php.

References wfGetLB().

◆ wfGetLangObj()

wfGetLangObj ( $langcode = false )

Return a Language object from $langcode.

Parameters

Language | string | bool

$langcode

Either:

a Language object
code of the language to get the message for, if it is a valid code create a language for that language, if it is a string but not a valid code then make a basic language object
a boolean: if it's false then use the global object for the current user's language (as a fallback for the old parameter functionality), or if it is true then use global object for the wiki's content language.

Returns: Language

Definition at line 1214 of file GlobalFunctions.php.

References $wgLang, $wgLanguageCode, and wfDebug().

Referenced by AllMessagesTablePager\__construct(), MessageCache\get(), Title\getPageLanguage(), ContentHandler\getPageLanguage(), and Title\getPageViewLanguage().

◆ wfGetLB()

wfGetLB ( $wiki = false )

Get a load balancer object.

Deprecated:: since 1.27, use MediaWikiServices::getInstance()->getDBLoadBalancer() or MediaWikiServices::getInstance()->getDBLoadBalancerFactory() instead.

Parameters

string | bool $wiki Wiki ID, or false for the current wiki

Returns: \Wikimedia\Rdbms\LoadBalancer

Definition at line 2568 of file GlobalFunctions.php.

Referenced by wfGetDB().

◆ wfGetMainCache()

wfGetMainCache ( )

Get the main cache object.

Deprecated:: since 1.32, use ObjectCache::getLocalClusterInstance() instead

Returns: BagOStuff

Definition at line 2838 of file GlobalFunctions.php.

◆ wfGetMessageCacheStorage()

wfGetMessageCacheStorage ( )

Get the cache object used by the message cache.

Returns: BagOStuff

Definition at line 2847 of file GlobalFunctions.php.

References $wgMessageCacheType.

◆ wfGetNull()

wfGetNull ( )

Get a platform-independent path to the null file, e.g.

/dev/null

Returns: string

Definition at line 2672 of file GlobalFunctions.php.

References wfIsWindows().

Referenced by Dump7ZipOutput\setup7zCommand().

◆ wfGetPrecompiledData()

wfGetPrecompiledData ( $name )

Get an object from the precompiled serialized directory.

Parameters

string $name

Returns: mixed The variable on success, false on failure

Definition at line 2459 of file GlobalFunctions.php.

References $blob, $file, $IP, and unserialize().

Referenced by IcuCollation\fetchFirstLetterData().

◆ wfGetRusage()

wfGetRusage ( )

Get system resource usage of current request context.

Invokes the getrusage(2) system call, requesting RUSAGE_SELF if on PHP5 or RUSAGE_THREAD if on HHVM. Returns false if getrusage is not available.

Since: 1.24

Returns: array|bool Resource usage data or false if no data available.

Definition at line 3067 of file GlobalFunctions.php.

Referenced by JobRunner\getMaxRssKb(), SectionProfiler\getTime(), and ParserOutput\getTimes().

◆ wfGetScriptUrl()

wfGetScriptUrl ( )

Get the script URL.

Returns: string Script URL

Definition at line 2638 of file GlobalFunctions.php.

◆ wfGetServerUrl()

wfGetServerUrl ( $proto )

Get the wiki's "server", i.e.

the protocol and host part of the URL, with a protocol specified using a PROTO_* constant as in wfExpandUrl()

Since: 1.32

Parameters

string | int | null $proto One of the PROTO_* constants.

Returns: string The URL

Definition at line 569 of file GlobalFunctions.php.

References wfExpandUrl().

Referenced by WebRequest\getFullRequestURL(), and GenerateSitemap\indexEntry().

◆ wfGlobalCacheKey()

wfGlobalCacheKey ( $args )

Make a cache key with database-agnostic prefix.

Doesn't have a wiki-specific namespace. Uses a generic 'global' prefix instead. Must have a prefix as otherwise keys that use a database name in the first segment will clash with wfMemcKey/wfForeignMemcKey.

Deprecated:: since 1.30 Call makeGlobalKey on a BagOStuff instance

Since: 1.26

Parameters

string ...$args

Returns: string

Definition at line 2510 of file GlobalFunctions.php.

References $args, and wfDeprecated().

◆ wfHostname()

wfHostname ( )

Get host name of the current machine, for use in error reporting.

This helps to know which machine in a data center generated the current page.

Returns: string

Definition at line 1326 of file GlobalFunctions.php.

References $wgOverrideHostname.

Referenced by MediaWiki\Logger\Monolog\WikiProcessor\__invoke(), ApiMain\addRequestedFields(), MWLBFactory\applyDefaultConfig(), DifferenceEngine\debug(), DjVuHandler\doTransform(), SvgHandler\doTransform(), TransformationalImageHandler\doTransform(), MediaWiki\Logger\LegacyLogger\formatAsWfDebugLog(), MediaWiki\Logger\LegacyLogger\formatAsWfLogDBError(), ApiMain\getMaxLag(), ProfilerOutputDb\log(), MediaHandler\logErrorForExternalProcess(), RecompressTracked\logToFile(), Parser\makeLimitReport(), Maintenance\setAgentAndTriggers(), wfReportTime(), and wfThumbError().

◆ wfHttpError()

wfHttpError	(	$code,
		$label,
		$desc
	)

Provide a simple HTTP error.

Parameters

int \| string	$code
string	$label
string	$desc

Definition at line 1639 of file GlobalFunctions.php.

References $wgOut, and print.

Referenced by SpecialRunJobs\execute(), RawAction\getRawText(), MediaWiki\Rest\EntryPoint\main(), MWExceptionRenderer\output(), AjaxDispatcher\performAction(), and MWException\report().

◆ wfIncrStats()

wfIncrStats	(	$key,
		$count = `1`
	)

Increment a statistics counter.

Parameters

string	$key
int	$count

Returns: void

Definition at line 1160 of file GlobalFunctions.php.

Referenced by DifferenceEngine\getDiffBody(), WikiPage\getParserOutput(), and ParserCache\incrementStats().

◆ wfIniGetBool()

wfIniGetBool ( $setting )

Safety wrapper around ini_get() for boolean settings.

The values returned from ini_get() are pre-normalized for settings set via php.ini or php_flag/php_admin_flag... but not for those set via php_value/php_admin_value.

It's fairly common for people to use php_value instead of php_flag, which can leave you with an 'off' setting giving a false positive for code that just takes the ini_get() return value as a boolean.

To make things extra interesting, setting via php_value accepts "true" and "yes" as true, but php.ini and php_flag consider them false. :) Unrecognized values go false... again opposite PHP's own coercion from string to bool.

Luckily, 'properly' set settings will always come back as '0' or '1', so we only have to worry about them and the 'improper' settings.

I frickin' hate PHP... :P

Parameters

string $setting

Returns: bool

Definition at line 2042 of file GlobalFunctions.php.

References wfStringToBool().

Referenced by PhpHttpRequest\__construct(), MediaWiki\Http\HttpRequestFactory\canMakeRequests(), MWHttpRequest\canMakeRequests(), UploadBase\isEnabled(), and WebInstaller\startSession().

◆ wfIsBadImage()

wfIsBadImage	(	$name,
		$contextTitle = `false`,
		$blacklist = `null`
	)

Determine if an image exists on the 'bad image list'.

The format of MediaWiki:Bad_image_list is as follows:

Only list items (lines starting with "*") are considered
The first link on a line must be a link to a bad image
Any subsequent links on the same line are considered to be exceptions, i.e. articles where the image may occur inline.

Deprecated:: since 1.34, use the BadFileLookup service directly instead

Parameters

string	$name	The image name to check
Title \| bool	$contextTitle	The page on which the image occurs, if known
string \| null	$blacklist	Wikitext of a file blacklist

Returns: bool

Definition at line 2904 of file GlobalFunctions.php.

References wfDeprecated().

◆ wfIsCLI()

wfIsCLI ( )

Check if we are running from the commandline.

Since: 1.31

Returns: bool

Definition at line 1912 of file GlobalFunctions.php.

Referenced by ForkController\__construct(), MediaWiki\Logger\Monolog\WikiProcessor\__invoke(), UIDGenerator\getSequentialPerNodeIDs(), MWExceptionHandler\handleUncaughtException(), and ProfilerOutputText\log().

◆ wfIsDebugRawPage()

wfIsDebugRawPage ( )

Returns true if debug logging should be suppressed if $wgDebugRawPage = false.

Returns: bool

Definition at line 947 of file GlobalFunctions.php.

References $cache.

Referenced by wfDebug(), and wfLogProfilingData().

◆ wfIsHHVM()

wfIsHHVM ( )

Check if we are running under HHVM.

Deprecated:: since 1.34, HHVM is no longer supported

Returns: bool

Definition at line 1901 of file GlobalFunctions.php.

Referenced by Installer\doEnvironmentChecks(), MWDebug\getDebugInfo(), SpecialVersion\getSoftwareInformation(), and UploadBase\isEnabled().

◆ wfIsInfinity()

wfIsInfinity ( $str )

Determine input string is represents as infinity.

Parameters

string $str The string to determine

Returns: bool

Since: 1.25

Definition at line 2940 of file GlobalFunctions.php.

Referenced by ApiProtect\execute(), UserrightsPage\expiryToTimestamp(), ProtectLogFormatter\formatExpiry(), ApiResult\formatExpiry(), ProtectionForm\getExpiry(), BlockLogFormatter\getParametersForApi(), SpecialBlock\parseExpiryInput(), SpecialBlock\processForm(), and Language\translateBlockExpiry().

◆ wfIsWindows()

wfIsWindows ( )

Check if the operating system is Windows.

Returns: bool True if it's Windows, false otherwise.

Definition at line 1887 of file GlobalFunctions.php.

Referenced by UIDGenerator\__construct(), MediaWiki\Shell\Command\buildFinalCommand(), Installer\envCheckDiff3(), Installer\envCheckGit(), Installer\envCheckGraphics(), MediaWiki\Shell\Shell\escape(), TransformationalImageHandler\escapeMagickPath(), MediaWiki\Shell\Command\execute(), RebuildLocalisationCache\execute(), Maintenance\getTermSize(), Maintenance\readlineEmulation(), UserMailer\sendInternal(), SevenZipStream\stream_open(), MailAddress\toString(), wfGetNull(), and CLIParser\Wikitext().

◆ wfLoadExtension()

wfLoadExtension	(	$ext,
		$path = `null`
	)

Load an extension.

This queues an extension to be loaded through the ExtensionRegistry system.

Parameters

string	$ext	Name of the extension to load
string \| null	$path	Absolute path of where to find the extension.json file

Since: 1.25

Definition at line 47 of file GlobalFunctions.php.

References $path, and $wgExtensionDirectory.

◆ wfLoadExtensions()

wfLoadExtensions ( array $exts )

Load multiple extensions at once.

Same as wfLoadExtension, but more efficient if you are loading multiple extensions.

If you want to specify custom paths, you should interact with ExtensionRegistry directly.

See also: wfLoadExtension

Parameters

string[] $exts Array of extension names to load

Since: 1.25

Definition at line 68 of file GlobalFunctions.php.

References $ext, and $wgExtensionDirectory.

◆ wfLoadSkin()

wfLoadSkin	(	$skin,
		$path = `null`
	)

Load a skin.

See also: wfLoadExtension

Parameters

string	$skin	Name of the extension to load
string \| null	$path	Absolute path of where to find the skin.json file

Since: 1.25

Definition at line 84 of file GlobalFunctions.php.

References $path, and $wgStyleDirectory.

◆ wfLoadSkins()

wfLoadSkins ( array $skins )

Load multiple skins at once.

See also: wfLoadExtensions

Parameters

string[] $skins Array of extension names to load

Since: 1.25

Definition at line 99 of file GlobalFunctions.php.

References $wgStyleDirectory.

◆ wfLocalFile()

wfLocalFile ( $title )

Get an object referring to a locally registered file.

Returns a valid placeholder object if the file does not exist.

Deprecated:: since 1.34, use MediaWikiServices

Parameters

Title | string $title

Returns: LocalFile|null A File, or null if passed an invalid Title

Definition at line 2596 of file GlobalFunctions.php.

References $title.

Referenced by UploadBase\getLocalFile(), and wfStreamThumb().

◆ wfLogDBError()

wfLogDBError	(		$text,
		array	$context = `[]`
	)

Log for database errors.

Since: 1.25 support for additional context data

Parameters

string	$text	Database error message.
array	$context	Additional logging context data

Definition at line 1025 of file GlobalFunctions.php.

References $context.

◆ wfLogProfilingData()

wfLogProfilingData ( )

Todo:

document

Move logic to MediaWiki.php

Definition at line 1086 of file GlobalFunctions.php.

References $context, $wgDebugLogGroups, $wgDebugRawPage, and wfIsDebugRawPage().

Referenced by MediaWiki\restInPeace().

◆ wfLogWarning()

wfLogWarning	(	$msg,
		$callerOffset = `1`,
		$level = `E_USER_WARNING`
	)

Send a warning as a PHP error and the debug log.

This is intended for logging warnings in production. For logging development warnings, use WfWarn instead.

Parameters

string	$msg	Message to send
int	$callerOffset	Number of items to go back in the backtrace to find the correct caller (1 = function calling wfLogWarning, ...)
int	$level	PHP error level; defaults to E_USER_WARNING

Definition at line 1078 of file GlobalFunctions.php.

Referenced by User\__get(), User\__set(), ChangesListSpecialPage\areFiltersInConflict(), MediaWiki\Storage\SqlBlobStore\compressData(), Language\convertGrammar(), WikiPage\doDeleteArticleBatched(), Linker\emailLink(), Revision\ensureTitle(), LogFormatter\formatParametersForApi(), CommentStore\getCommentInternal(), MediaWiki\Special\SpecialPageFactory\getPage(), Revision\getRevisionText(), SiteImporter\handleException(), Html\inlineScript(), ParserOutput\mergeInternalMetaDataFrom(), OutputPage\parserOptions(), OutputPage\transformFilePath(), Title\warnIfPageCannotExist(), and wfMkdirParents().

◆ wfMatchesDomainList()

wfMatchesDomainList	(	$url,
		$domains
	)

Check whether a given URL has a domain that occurs in a given set of domains.

Parameters

string	$url
array	$domains	Array of domains (strings)

Returns: bool True if the host part of $url ends in one of the strings in $domains

Definition at line 879 of file GlobalFunctions.php.

References wfParseUrl().

Referenced by Skin\addToSidebarPlain(), and Parser\getExternalLinkRel().

◆ wfMemcKey()

wfMemcKey ( $args )

Make a cache key for the local wiki.

Deprecated:: since 1.30 Call makeKey on a BagOStuff instance

Parameters

string ...$args

Returns: string

Definition at line 2479 of file GlobalFunctions.php.

References $args.

◆ wfMemoryLimit()

wfMemoryLimit ( $newLimit )

Raise PHP's memory limit (if needed).

Definition at line 2751 of file GlobalFunctions.php.

References wfDebug(), and wfShorthandToInteger().

◆ wfMerge()

wfMerge	(		$old,
			$mine,
			$yours,
		&	$result,
		&	$mergeAttemptResult = `null`
	)

wfMerge attempts to merge differences between three texts.

Returns true for a clean merge and false for failure or a conflict.

Parameters

string	$old
string	$mine
string	$yours
string	&$result
string \| null	&$mergeAttemptResult

Returns: bool

Definition at line 2205 of file GlobalFunctions.php.

References $wgDiff3, wfDebug(), and wfTempDir().

Referenced by TextContentHandler\merge3().

◆ wfMergeErrorArrays()

wfMergeErrorArrays ( $args )

Merge arrays in the style of getUserPermissionsErrors, with duplicate removal e.g.

wfMergeErrorArrays( [ [ 'x' ] ], [ [ 'x', '2' ] ], [ [ 'x' ] ], [ [ 'y' ] ] ); returns: [ [ 'x', '2' ], [ 'x' ], [ 'y' ] ]

Parameters

array ...$args

Returns: array

Definition at line 181 of file GlobalFunctions.php.

References $args.

Referenced by MergeHistory\checkPermissions(), MovePage\checkPermissions(), SpecialImport\execute(), Title\isValidMoveOperation(), SpecialChangeContentModel\onSubmit(), and DifferenceEngine\showDiffPage().

◆ wfMessage()

wfMessage	(	$key,
		$params
	)

This is the function for getting translated interface messages.

See also: Message class for documentation how to use them.; https://www.mediawiki.org/wiki/Manual:Messages_API

This function replaces all old wfMsg* functions.

Parameters

string \| string[] \| MessageSpecifier	$key	Message key, or array of keys, or a MessageSpecifier
	string\|string[]	...$params Normal message parameters

Returns: Message

Since: 1.17

See also: Message::__construct

Definition at line 1263 of file GlobalFunctions.php.

◆ wfMessageFallback()

wfMessageFallback ( $keys )

This function accepts multiple message keys and returns a message instance for the first message which is non-empty.

If all messages are empty then an instance of the first message key is returned.

Parameters

string ...$keys Message keys

Returns: Message

Since: 1.18

See also: Message::newFallbackSequence

Definition at line 1286 of file GlobalFunctions.php.

References $keys, and Message\newFallbackSequence().

Referenced by SkinTemplate\buildContentNavigationUrls(), FileRepo\getDisplayName(), ImagePage\openShowImage(), and SkinTemplate\tabAction().

◆ wfMkdirParents()

wfMkdirParents	(	$dir,
		$mode = `null`,
		$caller = `null`
	)

Make directory, and make all parent directories if they don't exist.

Parameters

string	$dir	Full path to directory to create
int \| null	$mode	Chmod value to use, default is $wgDirectoryMode
string \| null	$caller	Optional caller param for debugging.

Exceptions

MWException

Returns: bool

Definition at line 1946 of file GlobalFunctions.php.

References $wgDirectoryMode, FileBackend\isStoragePath(), wfDebug(), and wfLogWarning().

Referenced by ForeignResourceManager\cacheSet(), FileCacheBase\checkCacheDirs(), SqliteInstaller\createDataDir(), DjVuHandler\doTransform(), SvgHandler\doTransform(), TransformationalImageHandler\doTransform(), GenerateSitemap\execute(), ForeignResourceManager\handleTypeFile(), ForeignResourceManager\handleTypeMultiFile(), ForeignResourceManager\handleTypeTar(), CleanupImages\pokeFile(), GitInfo\precomputeValues(), ForeignResourceManager\run(), LCStoreCDB\startWrite(), and LCStoreStaticArray\startWrite().

◆ wfMsgReplaceArgs()

wfMsgReplaceArgs	(	$message,
		$args
	)

Replace message parameter keys on the given formatted output.

Parameters

string	$message
array	$args

Returns: string

Access:\n private

Definition at line 1298 of file GlobalFunctions.php.

References $args.

Referenced by WikiPage\commitRollback(), MWException\msg(), and MWExceptionRenderer\msg().

◆ wfNegotiateType()

wfNegotiateType	(	$cprefs,
		$sprefs
	)

Returns the 'best' match between a client's requested internet media types and the server's list of available types.

Each list should be an associative array of type to preference (preference is a float between 0.0 and 1.0). Wildcards in the types are acceptable.

Parameters

array	$cprefs	Client's acceptable type list
array	$sprefs	Server's offered types

Returns: string|null

Todo:

FIXME: Doesn't handle params like 'text/plain; charset=UTF-8' XXX: generalize to negotiate other stuff

The function appears unused. Is it worth to keep?

Definition at line 1805 of file GlobalFunctions.php.

References $type, and mimeTypeMatch().

◆ wfObjectToArray()

wfObjectToArray	(	$objOrArray,
		$recursive = `true`
	)

Recursively converts the parameter (an object) to an array with the same data.

Parameters

object \| array	$objOrArray
bool	$recursive

Returns: array

Definition at line 230 of file GlobalFunctions.php.

References wfObjectToArray().

Referenced by wfObjectToArray().

◆ wfParseUrl()

wfParseUrl ( $url )

parse_url() work-alike, but non-broken.

Differences:

1) Does not raise warnings on bad URLs (just returns false). 2) Handles protocols that don't use :// (e.g., mailto: and news:, as well as protocol-relative URLs) correctly. 3) Adds a "delimiter" element to the array (see (2)). 4) Verifies that the protocol is on the $wgUrlProtocols whitelist. 5) Rejects some invalid URLs that parse_url doesn't, e.g. the empty string or URLs starting with a line feed character.

Parameters

string $url A URL to parse

Returns

string[]|bool Bits of the URL in an associative array, or false on failure. Possible fields:

scheme: URI scheme (protocol), e.g. 'http', 'mailto'. Lowercase, always present, but can be an empty string for protocol-relative URLs.
delimiter: either '://', ':' or '//'. Always present.
host: domain name / IP. Always present, but could be an empty string, e.g. for file: URLs.
user: user name, e.g. for HTTP Basic auth URLs such as http://user:pass@example.com/ Missing when there is no username.
pass: password, same as above.
path: path including the leading /. Will be missing when empty (e.g. 'http://example.com')
query: query string (as a string; see wfCgiToArray() for parsing it), can be missing.
fragment: the part after #, can be missing.

Definition at line 793 of file GlobalFunctions.php.

References $wgUrlProtocols.

Referenced by MWHttpRequest\__construct(), SpecialLinkSearch\execute(), ApiAMCreateAccount\execute(), ApiClientLogin\execute(), ApiLinkAccount\execute(), DeleteSelfExternals\execute(), MediaWiki\Widget\Search\InterwikiSearchResultSetWidget\footerHtml(), WikiMap\getCanonicalServerInfoForAllWikis(), WikiReference\getDisplayName(), WikiMap\getWikiFromUrl(), WikiMap\getWikiWikiReferenceFromSites(), MediaWiki\Widget\Search\SimpleSearchResultSetWidget\headerHtml(), ThumbnailRenderJob\hitThumbUrl(), UploadFromUrl\isAllowedHost(), MediaWiki\Widget\Search\InterwikiSearchResultSetWidget\iwIcon(), LinkFilter\makeIndexes(), LinkFilter\makeLikeArray(), UserMailer\makeMsgId(), ApiCSPReport\matchUrlPattern(), ApiCSPReport\originFromUrl(), ContentSecurityPolicy\prepareUrlForCSP(), SquidPurgeClient\queuePurge(), RedisPubSubFeedEngine\send(), MediaWiki\triggerAsyncJobs(), wfExpandUrl(), and wfMatchesDomainList().

◆ wfPercent()

wfPercent	(	$nr,
		$acc = `2`,
		$round = `true`
	)

Parameters

int	$nr	The number to format
int	$acc	The number of digits after the decimal point, default 2
bool	$round	Whether or not to round the value, default true

Returns: string

Definition at line 2014 of file GlobalFunctions.php.

Referenced by profile_point\display().

◆ wfQueriesMustScale()

wfQueriesMustScale ( )

Should low-performance queries be disabled?

Returns: bool

Definition at line 2606 of file GlobalFunctions.php.

References $wgMiserMode, SiteStats\edits(), SiteStats\pages(), and SiteStats\users().

◆ wfRandom()

wfRandom ( )

Get a random decimal value in the domain of [0, 1), in a way not likely to give duplicate values for any realistic number of articles.

Note: This is designed for use in relation to Special:RandomPage and the page_random database field.

Returns: string

Definition at line 256 of file GlobalFunctions.php.

Referenced by CompareParserCache\execute(), ResetPageRandom\execute(), SpecialRandomInCategory\getRandomTitle(), RandomPage\getRandomTitle(), WikiPage\insertOn(), and ApiQueryRandom\run().

◆ wfRandomString()

wfRandomString ( $length = 32 )

Get a random string containing a number of pseudo-random hex characters.

Note: This is not secure, if you are trying to generate some sort of token please use MWCryptRand instead.

Parameters

int $length The length of the string to generate

Returns: string

Since: 1.20

Definition at line 274 of file GlobalFunctions.php.

Referenced by JobQueueDB\doPop(), SvgHandler\doTransform(), BenchmarkLruHash\execute(), BenchmarkSanitizer\execute(), MakeTestEdits\execute(), WebRequest\getRequestId(), StripState\merge(), UIDGenerator\newUUIDv4(), BenchmarkTitleValue\randomize(), and UploadSourceAdapter\registerSource().

◆ wfReadOnly()

wfReadOnly ( )

Check whether the wiki is in read-only mode.

Returns: bool

Definition at line 1170 of file GlobalFunctions.php.

Referenced by ProtectionForm\__construct(), User\addAutopromoteOnceGroups(), ApiQuerySiteinfo\appendGeneralInfo(), MediaWiki\Auth\AuthManager\autoCreateUser(), ProfilerOutputDb\canUse(), MediaWiki\Auth\AuthManager\checkAccountCreatePermissions(), Action\checkCanExecute(), ApiMain\checkReadOnly(), SpecialPage\checkReadOnly(), User\clearAllNotifications(), User\clearNotification(), WikiPage\commitRollback(), MediaWiki\Block\DatabaseBlock\delete(), Article\delete(), UserGroupMembership\delete(), WikiPage\doUpdateRestrictions(), WikiPage\doViewUpdates(), EditPage\edit(), SpecialRunJobs\execute(), FileDeleteForm\execute(), BackupReader\execute(), LocalFile\getSha1(), EditPage\internalAttemptSave(), Title\invalidateCache(), LocalFile\maybeUpgradeRow(), MediaWiki\Block\DatabaseBlock\purgeExpired(), Title\purgeExpiredRestrictions(), Category\refreshCounts(), JobRunner\run(), MediaWiki\Session\SessionBackend\save(), SpecialSearch\saveNamespaces(), User\saveSettings(), User\setNewtalk(), McrUndoAction\show(), EditPage\showHeader(), MediaWiki\triggerJobs(), WikiPage\triggerOpportunisticLinksUpdate(), PageArchive\undeleteRevisions(), and LocalFile\upgradeRow().

◆ wfReadOnlyReason()

wfReadOnlyReason ( )

Check if the site is in read-only mode and return the message if so.

This checks wfConfiguredReadOnlyReason() and the main load balancer for replica DB lag. This may result in DB connection being made.

Returns: string|bool String when in read-only mode; false otherwise

Definition at line 1183 of file GlobalFunctions.php.

Referenced by ReadOnlyError\__construct(), ProtectionForm\__construct(), ApiQuerySiteinfo\appendGeneralInfo(), MediaWiki\Auth\AuthManager\autoCreateUser(), MediaWiki\Auth\AuthManager\checkAccountCreatePermissions(), ApiBase\dieReadOnly(), WikiPage\doUpdateRestrictions(), McrUndoAction\show(), and EditPage\showHeader().

◆ wfRecursiveRemoveDir()

wfRecursiveRemoveDir ( $dir )

Remove a directory and all its content.

Does not hide error.

Parameters

string $dir

Definition at line 1989 of file GlobalFunctions.php.

References wfDebug(), and wfRecursiveRemoveDir().

Referenced by ForeignResourceManager\cleanUp(), ForeignResourceManager\run(), and wfRecursiveRemoveDir().

◆ wfRelativePath()

wfRelativePath	(	$path,
		$from
	)

Generate a relative path name to the given file.

May explode on non-matching case-insensitive paths, funky symlinks, etc.

Parameters

string	$path	Absolute destination path including target filename
string	$from	Absolute source path, directory only

Returns: string

Definition at line 2392 of file GlobalFunctions.php.

References $path, and wfBaseName().

Referenced by DumpUploads\outputItem().

◆ wfRemoveDotSegments()

wfRemoveDotSegments ( $urlPath )

Remove all dot-segments in the provided URL path.

For example, '/a/./b/../c/' becomes '/a/c/'. For details on the algorithm, please see RFC3986 section 5.2.4.

Todo:: Need to integrate this into wfExpandUrl (see T34168)

Since: 1.19

Parameters

string $urlPath URL path, potentially containing dot-segments

Returns: string URL path with all dot-segments removed

Definition at line 641 of file GlobalFunctions.php.

Referenced by PathRouter\parse(), CSSMin\remapOne(), and wfExpandUrl().

◆ wfReportTime()

wfReportTime ( $nonce = null )

Returns a script tag that stores the amount of time it took MediaWiki to handle the request in milliseconds as 'wgBackendResponseTime'.

If $wgShowHostnames is true, the script will also set 'wgHostname' to the hostname of the server handling the request.

Parameters

string | null $nonce Value from OutputPage::getCSPNonce

Returns: string|WrappedString HTML

Definition at line 1346 of file GlobalFunctions.php.

References $wgShowHostnames, and wfHostname().

Referenced by SkinTemplate\prepareQuickTemplate().

◆ wfResetOutputBuffers()

wfResetOutputBuffers ( $resetGzipEncoding = true )

Clear away any user-level output buffers, discarding contents.

Suitable for 'starting afresh', for instance when streaming relatively large amounts of data without buffering, or wanting to output image files without ob_gzhandler's compression.

The optional $resetGzipEncoding parameter controls suppression of the Content-Encoding header sent by ob_gzhandler; by default it is left. See comments for wfClearOutputBuffers() for why it would be used.

Note that some PHP configuration options may add output buffer layers which cannot be removed; these are left in place.

Parameters

bool $resetGzipEncoding

Definition at line 1676 of file GlobalFunctions.php.

References $wgDisableOutputCompression.

Referenced by SpecialExport\execute(), SpecialUploadStash\outputContents(), ResourceLoader\tryRespondNotModified(), and wfClearOutputBuffers().

◆ wfScript()

wfScript ( $script = 'index' )

Get the path to a specified script file, respecting file extensions; this is a wrapper around $wgScriptPath etc.

except for 'index' and 'load' which use $wgScript/$wgLoadScript

Parameters

string $script Script filename, sans extension

Returns: string

Definition at line 2622 of file GlobalFunctions.php.

References $wgLoadScript, $wgScript, and $wgScriptPath.

Referenced by SpecialPage\addFeedLinks(), SpecialRedirect\dispatchLog(), SpecialRedirect\dispatchPage(), SpecialRedirect\dispatchRevision(), SpecialRecentChanges\doHeader(), SpecialWatchlist\doHeader(), SpecialApiHelp\execute(), SpecialContributions\execute(), SpecialFileDuplicateSearch\execute(), SpecialLinkSearch\execute(), RedirectSpecialPage\execute(), SpecialRecentChanges\execute(), ApiHelp\fixHelpLinks(), HTMLForm\getAction(), SpecialLog\getActionButtons(), SpecialVersion\getEntryPointInfo(), SpecialContributions\getForm(), OutputPage\getHeadLinksArray(), ApiHelp\getHelpInternal(), TablePager\getLimitForm(), ApiOpenSearch\getOpenSearchTemplate(), ContentSecurityPolicy\getReportUri(), ApiRsd\getRsdApiList(), HistoryPager\getStartBody(), HistoryAction\onView(), MediaWiki\Widget\Search\SearchFormWidget\render(), SpecialMergeHistory\showMergeForm(), SpecialUndelete\showSearchForm(), ApiMain\substituteResultWithError(), UserrightsPage\switchForm(), and SpecialWhatLinksHere\whatlinkshereForm().

◆ wfSetBit()

wfSetBit	(	&	$dest,
			$bit,
			$state = `true`
	)

As for wfSetVar except setting a bit.

Parameters

int	&$dest
int	$bit
bool	$state

Returns: bool

Definition at line 1604 of file GlobalFunctions.php.

◆ wfSetupSession()

wfSetupSession ( $sessionId = false )

Initialise php session.

Deprecated:: since 1.27, use MediaWiki\Session\SessionManager instead. Generally, "using" SessionManager will be calling ->getSessionById() or ::getGlobalSession() (depending on whether you were passing $sessionId here), then calling $session->persist().

Parameters

bool | string $sessionId

Definition at line 2437 of file GlobalFunctions.php.

References wfDeprecated().

◆ wfSetVar()

wfSetVar	(	&	$dest,
			$source,
			$force = `false`
	)

Sets dest to source and returns the original value of dest If source is NULL, it just returns the value, it doesn't set the variable If force is true, it will set the value even if source is NULL.

Parameters

mixed	&$dest
mixed	$source
bool	$force

Returns: mixed

Definition at line 1587 of file GlobalFunctions.php.

References $source.

◆ wfShellExec()

wfShellExec	(		$cmd,
		&	$retval = `null`,
			$environ = `[]`,
			$limits = `[]`,
			$options = `[]`
	)

Execute a shell command, with time and memory limits mirrored from the PHP configuration if supported.

Parameters

string \| string[]	$cmd	If string, a properly shell-escaped command line, or an array of unescaped arguments, in which case each value will be escaped Example: [ 'convert', '-font', 'font name' ] would produce "'convert' '-font' 'font name'"
null \| mixed	&$retval	Optional, will receive the program's exit code. (non-zero is usually failure). If there is an error from read, select, or proc_open(), this will be set to -1.
array	$environ	Optional environment variables which should be added to the executed command environment.
array	$limits	Optional array with limits(filesize, memory, time, walltime) this overwrites the global wgMaxShell* limits.
array	$options	Array of options: duplicateStderr: Set this to true to duplicate stderr to stdout, including errors from limit.sh profileMethod: By default this function will profile based on the calling method. Set this to a string for an alternative method to profile from -param array{duplicateStderr?:bool,profileMethod?:string} $options

Returns: string Collected stdout as a string

Deprecated:: since 1.30 use class MediaWiki\Shell\Shell

Definition at line 2107 of file GlobalFunctions.php.

References wfGetCaller().

Referenced by UIDGenerator\__construct(), DjVuHandler\doTransform(), DjVuImage\retrieveMetaData(), and wfShellExecWithStderr().

◆ wfShellExecWithStderr()

wfShellExecWithStderr	(		$cmd,
		&	$retval = `null`,
			$environ = `[]`,
			$limits = `[]`
	)

Execute a shell command, returning both stdout and stderr.

Convenience function, as all the arguments to wfShellExec can become unwieldy.

Note: This also includes errors from limit.sh, e.g. if $wgMaxShellFileSize is exceeded.

Parameters

string \| string[]	$cmd	If string, a properly shell-escaped command line, or an array of unescaped arguments, in which case each value will be escaped Example: [ 'convert', '-font', 'font name' ] would produce "'convert' '-font' 'font name'"
null \| mixed	&$retval	Optional, will receive the program's exit code. (non-zero is usually failure)
array	$environ	Optional environment variables which should be added to the executed command environment.
array	$limits	Optional array with limits(filesize, memory, time, walltime) this overwrites the global wgMaxShell* limits.

Returns: string Collected stdout and stderr as a string

Deprecated:: since 1.30 use class MediaWiki\Shell\Shell

Definition at line 2160 of file GlobalFunctions.php.

References wfGetCaller(), and wfShellExec().

Referenced by UploadBase\detectVirus(), TransformationalImageHandler\getMagickVersion(), SvgHandler\rasterize(), BitmapHandler\rotate(), BitmapHandler\transformCustom(), and BitmapHandler\transformImageMagick().

◆ wfShellWikiCmd()

wfShellWikiCmd	(		$script,
		array	$parameters = `[]`,
		array	$options = `[]`
	)

Generate a shell-escaped command line string to run a MediaWiki cli script.

Note that $parameters should be a flat array and an option with an argument should consist of two consecutive items in the array (do not use "--option value").

Deprecated:: since 1.31, use Shell::makeScriptCommand()

Parameters

string	$script	MediaWiki cli script path
array	$parameters	Arguments and options to the script
array	$options	Associative array of options: 'php': The path to the php executable 'wrapper': Path to a PHP wrapper to handle the maintenance script -param array{php?:string,wrapper?:string} $options

Returns: string

Definition at line 2180 of file GlobalFunctions.php.

References $wgPhpCli.

Referenced by CleanupSpam\execute().

◆ wfShorthandToInteger()

wfShorthandToInteger	(	$string = `''`,
		$default = `-1`
	)

Converts shorthand byte notation to integer form.

Parameters

string	$string
int	$default	Returned if $string is empty

Returns: int

Definition at line 2797 of file GlobalFunctions.php.

References $last.

Referenced by Installer\envCheckMemory(), UploadBase\getMaxPhpUploadSize(), WebRequestUpload\isIniSizeOverflow(), and wfMemoryLimit().

◆ wfShowingResults()

wfShowingResults	(	$offset,
		$limit
	)

Todo:: document

Parameters

int	$offset
int	$limit

Returns: string

Definition at line 1483 of file GlobalFunctions.php.

References wfMessage().

◆ wfStringToBool()

wfStringToBool ( $val )

Convert string value to boolean, when the following are interpreted as true:

on
true
yes
Any number, except 0 All other strings are interpreted as false.

Parameters

string $val

Returns: bool

Since: 1.31

Definition at line 2058 of file GlobalFunctions.php.

Referenced by wfIniGetBool().

◆ wfStripIllegalFilenameChars()

wfStripIllegalFilenameChars ( $name )

Replace all invalid characters with '-'.

Additional characters can be defined in $wgIllegalFileChars (see T22489). By default, $wgIllegalFileChars includes ':', '/', '\'.

Parameters

string $name Filename to process

Returns: string

Definition at line 2733 of file GlobalFunctions.php.

References $wgIllegalFileChars, and wfBaseName().

Referenced by UploadBase\getTitle(), and MovePage\isValidFileMove().

◆ wfTempDir()

wfTempDir ( )

Tries to get the system directory for temporary files.

First $wgTmpDirectory is checked, and then the TMPDIR, TMP, and TEMP environment variables are then checked in sequence, then sys_get_temp_dir(), then upload_tmp_dir from php.ini.

NOTE: When possible, use instead the tmpfile() function to create temporary files to avoid race conditions on file creation, etc.

Returns: string

Definition at line 1927 of file GlobalFunctions.php.

References $wgTmpDirectory.

Referenced by UIDGenerator\__construct(), SvgHandler\doTransform(), ImportableUploadRevisionImporter\downloadSource(), WikiImporter\dumpTemp(), HHVMMakeRepo\execute(), MWDocGen\execute(), MediaWikiShell\execute(), UIDGenerator\getSequentialPerNodeIDs(), TextSlotDiffRenderer\getTextDiffInternal(), JobRunner\loadBackoffs(), ResourceLoaderImage\rasterize(), CheckStorage\restoreText(), JobRunner\syncBackoffDeltas(), wfDiff(), and wfMerge().

◆ wfThumbIsStandard()

wfThumbIsStandard	(	File	$file,
		array	$params
	)

Returns true if these thumbnail parameters match one that MediaWiki requests from file description pages and/or parser output.

$params is considered non-standard if they involve a non-standard width or any non-default parameters aside from width and page number. The number of possible files with standard parameters is far less than that of all combinations; rate-limiting for them can thus be more generious.

Parameters

File	$file
array	$params

Returns: bool

Since: 1.24 Moved from thumb.php to GlobalFunctions in 1.25

Definition at line 2960 of file GlobalFunctions.php.

References $file, $wgImageLimits, $wgResponsiveImages, and $wgThumbLimits.

Referenced by wfStreamThumb().

◆ wfTimestamp()

wfTimestamp	(	$outputtype = `TS_UNIX`,
		$ts = `0`
	)

Get a timestamp string in one of various formats.

Parameters

mixed	$outputtype	A timestamp in one of the supported formats, the function will autodetect which format is supplied and act accordingly.
mixed	$ts	Optional timestamp to convert, default 0 for the current time

Returns: string|bool String / false The same date in the format specified in $outputtype or false

Definition at line 1849 of file GlobalFunctions.php.

References wfDebug().

Referenced by MediaWiki\Block\AbstractBlock\__construct(), MediaWiki\Revision\RevisionArchiveRecord\__construct(), MediaWiki\Revision\RevisionStoreRecord\__construct(), OutputPage\adaptCdnTTL(), DumpCategoriesAsRdf\addDumpHeader(), User\addGroup(), UserRightsProxy\addGroup(), LinkCache\addLinkObj(), ApiMain\addRequestedFields(), ApiQuerySiteinfo\appendExtensions(), ApiQuerySiteinfo\appendGeneralInfo(), ChangesListSpecialPage\buildQuery(), FileCacheBase\cacheTimestamp(), MediaWiki\Storage\PageEditStash\checkCache(), ApiMain\checkConditionalRequestHeaders(), AjaxResponse\checkLastModified(), OutputPage\checkLastModified(), WikiPage\commitRollback(), User\confirmationToken(), LanguageWa\date(), Language\date(), DifferenceEngine\debug(), JobRunner\debugCallback(), LocalFile\decodeRow(), SpecialUndelete\diffHeader(), MysqlUpdater\doSchemaRestructuring(), SpecialExport\execute(), ApiEditPage\execute(), ApiFeedWatchlist\execute(), ApiMergeHistory\execute(), ApiProtect\execute(), ApiQueryAllUsers\execute(), ApiQueryBlocks\execute(), ApiQueryDeletedrevs\execute(), ApiQueryFilearchive\execute(), ApiQueryImageInfo\execute(), ApiSetNotificationTimestamp\execute(), ApiUndelete\execute(), LocalFileRestoreBatch\execute(), BenchmarkParse\execute(), CleanupUploadStash\execute(), FixTimestamps\execute(), GenerateSitemap\execute(), ImportTextFiles\execute(), PurgeParserCache\execute(), RemoveUnusedAccounts\execute(), UpdateSearchIndex\execute(), JobRunner\executeJob(), Parser\expandMagicVariable(), UserrightsPage\expiryToTimestamp(), ApiQueryWatchlist\extractOutputData(), ApiQueryInfo\extractPageInfo(), ApiQueryRevisionsBase\extractRevisionInfo(), ApiQueryLogEvents\extractRowInfo(), ApiQueryRecentChanges\extractRowInfo(), ApiQueryUserContribs\extractRowInfo(), HistoryAction\feedEmpty(), MediaWiki\Logger\LegacyLogger\formatAsWfDebugLog(), FeedUtils\formatDiff(), Language\formatExpiry(), ApiResult\formatExpiry(), SpecialUndelete\formatFileRow(), LogFormatter\formatParameterValueForApi(), SpecialMergeHistory\formatRevisionRow(), SpecialUndelete\formatRevisionRow(), AtomFeed\formatTime(), RSSFeed\formatTime(), ImageListPager\formatValue(), GenerateSitemap\generateLimit(), RevDelArchivedFileItem\getApiData(), RevDelFileItem\getApiData(), RevDelRevisionItem\getApiData(), MediaWiki\Block\DatabaseBlock\getAutoblockExpiry(), NewUsersLogFormatter\getComment(), ApiQueryUserInfo\getCurrentUserInfo(), LocalFile\getDescriptionTouched(), User\getEditTimestamp(), User\getExperienceLevel(), ProtectionForm\getExpiry(), FormatMetadata\getExtendedMetadataFromFile(), ApiQueryImageInfo\getInfo(), SpecialActiveUsers\getIntroText(), LogFormatter\getIRCActionText(), OutputPage\getJSVars(), ApiQueryUserInfo\getLatestContributionTime(), MachineReadableRCFeedFormatter\getLine(), BlockLogFormatter\getMessageParameters(), PNGMetadataExtractor\getMetadata(), SpecialRandomInCategory\getMinAndMaxForCat(), ApiParamInfo\getModuleInfo(), MediaWiki\Auth\AbstractPasswordPrimaryAuthenticationProvider\getNewPasswordExpiry(), BlockLogFormatter\getParametersForApi(), RefreshLinksJob\getParserOutputFromCache(), MediaWiki\Auth\LocalPasswordPrimaryAuthenticationProvider\getPasswordResetData(), PageArchive\getPreviousRevision(), ActiveUsersPager\getQueryInfo(), RawAction\getRawText(), Parser\getRevisionTimestampSubstring(), ApiQuerySearch\getSearchResultData(), ImageHistoryList\getThumbForLine(), ArchivedFile\getTimestamp(), ForeignAPIFile\getTimestamp(), DatabaseLogEntry\getTimestamp(), ManualLogEntry\getTimestamp(), RCDatabaseLogEntry\getTimestamp(), WikiPage\getTimestamp(), RevisionItemBase\getTimestamp(), MediaWiki\Revision\RevisionStore\getTimestampFromId(), WANCacheReapUpdate\getTitleChangeEvents(), ResourceLoaderWikiModule\getTitleInfo(), User\getTouched(), ApiQueryInfo\getVisitingWatcherInfo(), ForeignAPIRepo\httpGet(), ImageHistoryList\imageHistoryLine(), MediaWiki\Block\DatabaseBlock\initFromRow(), UserGroupMembership\initFromRow(), Language\internalUserTimeAndDate(), RefreshLinksJob\isAlreadyRefreshed(), User\isEmailConfirmationPending(), RecentChange\isInRCLifespan(), MediaWiki\Auth\TemporaryPasswordPrimaryAuthenticationProvider\isTimestampValid(), User\loadDefaults(), LocalFile\loadFromCache(), User\loadFromCache(), MessageCache\loadFromDB(), WikiPage\loadFromRow(), RecentChange\loadFromRow(), User\loadFromRow(), SpecialUndelete\loadRequest(), ApiMain\logRequest(), GenerateSitemap\main(), FormatMetadata\makeFormattedData(), MediaWiki\Session\Token\match(), SpecialBlock\maybeAlterFormDefaults(), User\newTouchedTimestamp(), OutputPage\output(), InfoAction\pageCounts(), MediaWiki\Storage\PageEditStash\parseAndCache(), SpecialBlock\parseExpiryInput(), TableCleanup\progress(), ImageBuilder\progress(), MediaWiki\Auth\TemporaryPasswordPrimaryAuthenticationProvider\providerAllowsAuthenticationDataChange(), LocalFile\publishTo(), RebuildRecentchanges\rebuildRecentChangesTablePass1(), QueryPage\recache(), LocalFile\recordUpload2(), ManageJobs\repushAbandoned(), WatchedItemStore\resetNotificationTimestamp(), ApiQueryCategories\run(), ApiQueryCategoryMembers\run(), ApiQueryDuplicateFiles\run(), ApiQueryProtectedTitles\run(), ApiQueryQueryPage\run(), ApiQueryWatchlistRaw\run(), CategoryMembershipChangeJob\run(), ApiMain\sendCacheHeaders(), ResourceLoader\sendResponseHeaders(), MediaWiki\Block\BlockManager\setBlockCookie(), OutputPage\setLastModified(), MediaWiki\Revision\MutableRevisionRecord\setTimestamp(), WikiRevision\setTimestamp(), WikiPage\setTimestamp(), BackupDumper\showReport(), TextPassDumper\showReport(), MediaWiki\Storage\PageEditStash\storeStashValue(), UpdateLogging\sync(), Language\time(), Language\timeanddate(), IPTC\timeHelper(), MediaWiki\Session\Token\toString(), ApiUpload\transformWarnings(), ResourceLoader\tryRespondFromFileCache(), RecentChangesUpdateJob\updateActiveUsers(), WikiPage\updateIfNewerOn(), MediaWiki\Block\DatabaseBlock\updateTimestamp(), CategoryChangesAsRdf\updateTS(), ApiBase\validateTimestamp(), EditPage\wasDeletedSinceLastEdit(), wfStreamThumb(), wfTimestampOrNull(), and XmlDumpWriter\writeTimestamp().

◆ wfTimestampNow()

wfTimestampNow ( )

Convenience function; returns MediaWiki timestamp for the present time.

Returns: string TS_MW timestamp

Definition at line 1878 of file GlobalFunctions.php.

Referenced by CategoryMembershipChange\__construct(), LinksDeletionUpdate\__construct(), User\confirmEmail(), MediaWiki\Preferences\DefaultPreferencesFactory\datetimePreferences(), MediaWiki\Block\DatabaseBlock\doAutoblock(), SpecialWatchlist\doHeader(), PoolWorkArticleView\doWork(), SpecialExport\execute(), ApiEditPage\execute(), ApiProtect\execute(), ApiUserrights\execute(), GenerateSitemap\execute(), ImportTextFiles\execute(), MigrateFileRepoLayout\execute(), PPFuzzTest\execute(), ResetUserEmail\execute(), UpdateSearchIndex\execute(), FormatMetadata\fetchExtendedMetadata(), Title\getCascadeProtectionSources(), MediaWiki\Preferences\DefaultPreferencesFactory\getDateOptions(), RefreshLinksJob\getParserOutput(), ManualLogEntry\getTimestamp(), ParserOptions\getTimestamp(), EditPage\importFormData(), MediaWiki\Revision\RevisionStore\initializeMutableRevisionFromArray(), ManualLogEntry\insert(), HTMLCacheUpdateJob\invalidateTitles(), MessageCache\isCacheExpired(), MediaWiki\Block\DatabaseBlock\isExpired(), UserGroupMembership\isExpired(), Title\loadRestrictions(), Title\loadRestrictionsFromRows(), MediaWiki\Revision\RevisionStore\newNullRevision(), Job\newRootJobParams(), SpecialLockdb\onSubmit(), SpecialRecentChanges\optionsPanel(), AtomFeed\outHeader(), RSSFeed\outHeader(), MediaWiki\Storage\DerivedPageDataUpdater\prepareContent(), SpecialBlock\processForm(), WikiImporter\processRevision(), ManageJobs\repushAbandoned(), ProtectionForm\save(), ParserCache\save(), LogPage\saveContent(), HTMLFileCache\saveToFileCache(), UserrightsPage\saveUserGroups(), and AjaxResponse\storeInMemcached().

◆ wfTimestampOrNull()

wfTimestampOrNull	(	$outputtype = `TS_UNIX`,
		$ts = `null`
	)

Return a formatted timestamp, or null if input is null.

For dealing with nullable timestamp columns in the database.

Parameters

int	$outputtype
string \| null	$ts

Returns: string

Definition at line 1865 of file GlobalFunctions.php.

References wfTimestamp().

Referenced by Autopromote\checkCondition(), ApiQueryUsers\execute(), ResetPageRandom\execute(), NoWriteWatchedItemStore\getLatestNotificationTimestamp(), WatchedItemStore\getLatestNotificationTimestamp(), MediaWiki\Auth\LocalPasswordPrimaryAuthenticationProvider\getPasswordResetData(), Job\getQueuedTimestamp(), Job\getReleaseTimestamp(), JobSpecification\getReleaseTimestamp(), MediaWiki\Auth\TemporaryPasswordPrimaryAuthenticationProvider\isTimestampValid(), MediaWiki\Storage\PageEditStash\lastEditTime(), WikiPage\loadFromRow(), and User\loadFromRow().

◆ wfTransactionalTimeLimit()

wfTransactionalTimeLimit ( )

Set PHP's time limit to the larger of php.ini or $wgTransactionalTimeLimit.

Returns: int Prior time limit

Since: 1.26

Definition at line 2776 of file GlobalFunctions.php.

References $wgTransactionalTimeLimit.

Referenced by RollbackAction\enableTransactionalTimelimit(), Action\useTransactionalTimeLimit(), ApiBase\useTransactionalTimeLimit(), and SpecialPage\useTransactionalTimeLimit().

◆ wfUnpack()

wfUnpack	(	$format,
		$data,
		$length = `false`
	)

Wrapper around php's unpack.

Parameters

string	$format	The format string (See php's docs)
string	$data	A binary string of binary data
int \| bool	$length	The minimum length of $data or false. This is to prevent reading beyond the end of $data. false to disable the check.

Also be careful when using this function to read unsigned 32 bit integer because php might make it negative.

Exceptions

MWException If $data not long enough, or if unpack fails

Returns: array Associative array of the extracted data

Definition at line 2866 of file GlobalFunctions.php.

Referenced by JpegMetadataExtractor\doPSIR(), BmpHandler\getImageSize(), XCFHandler\getXCFMetaData(), JpegMetadataExtractor\jpegExtractMarker(), and JpegMetadataExtractor\segmentSplitter().

◆ wfUrlencode()

wfUrlencode ( $s )

We want some things to be included as literal characters in our title URLs for prettiness, which urlencode encodes by default.

According to RFC 1738, all of the following should be safe:

;:&=$-_.+!*'(),

RFC 1738 says ~ is unsafe, however RFC 3986 considers it an unreserved character which should not be encoded. More importantly, google chrome always converts %7E back to ~, and converting it in this function can cause a redirect loop (T105265).

But + is not safe because it's used to indicate a space; &= are only safe in paths and not in queries (and we don't distinguish here); ' seems kind of scary; and urlencode() doesn't touch -_. to begin with. Plus, although / is reserved, we don't care. So the list we unescape is:

;:$!*(),/~

However, IIS7 redirects fail when the url contains a colon (see T24709), so no fancy : for IIS7.

%2F in the page titles seems to fatally break for some reason.

Parameters

string $s

Returns: string

Definition at line 309 of file GlobalFunctions.php.

References $s.

Referenced by Title\__wakeup(), OutputPage\addHelpLink(), CoreParserFunctions\basepagenamee(), Parser\expandMagicVariable(), FileRepo\getDescriptionRenderUrl(), FileRepo\getDescriptionUrl(), WikiReference\getLocalUrl(), Title\getLocalURL(), MediaWikiSite\getPageUrl(), Title\getPrefixedURL(), LoginSignupSpecialPage\getReturnToQueryStringFragment(), Title\getSubpageUrlForm(), ParserOutput\getText(), Interwiki\getURL(), ApiBase\logFeatureUsage(), ApiMain\logRequest(), Title\makeTitle(), CoreParserFunctions\namespacee(), CoreParserFunctions\nse(), CoreParserFunctions\rootpagenamee(), Title\secureAndSplit(), CoreParserFunctions\speciale(), CoreParserFunctions\subjectspacee(), and CoreParserFunctions\talkspacee().

◆ wfUrlProtocols()

wfUrlProtocols ( $includeProtocolRelative = true )

Returns a regular expression of url protocols.

Parameters

bool $includeProtocolRelative If false, remove '//' from the returned protocol list. DO NOT USE this directly, use wfUrlProtocolsWithoutProtRel() instead

Returns: string

Definition at line 719 of file GlobalFunctions.php.

References $wgUrlProtocols.

Referenced by Parser\__construct(), Skin\addToSidebarPlain(), ResourceLoaderStartUpModule\getConfigSettings(), Skin\makeInternalOrExternalUrl(), Sanitizer\safeEncodeAttribute(), Sanitizer\validateAttributes(), and wfUrlProtocolsWithoutProtRel().

◆ wfUrlProtocolsWithoutProtRel()

wfUrlProtocolsWithoutProtRel ( )

Like wfUrlProtocols(), but excludes '//' from the protocol list.

Use this if you need a regex that matches all URL protocols but does not match protocol- relative URLs

Returns: string

Definition at line 764 of file GlobalFunctions.php.

References wfUrlProtocols().

Referenced by Parser\handleExternalLinks(), and Parser\handleMagicLinks().

◆ wfVarDump()

wfVarDump ( $var )

A wrapper around the PHP function var_export().

Either print it or add it to the regular output ($wgOut).

Parameters

mixed $var A PHP variable to dump.

Definition at line 1622 of file GlobalFunctions.php.

References $s, $wgOut, and print.

◆ wfWaitForSlaves()

wfWaitForSlaves	(	$ifWritesSince = `null`,
		$wiki = `false`,
		$cluster = `false`,
		$timeout = `null`
	)

Waits for the replica DBs to catch up to the master position.

Use this when updating very large numbers of rows, as in maintenance scripts, to avoid causing too much lag. Of course, this is a no-op if there are no replica DBs.

By default this waits on the main DB cluster of the current wiki. If $cluster is set to "*" it will wait on all DB clusters, including external ones. If the lag being waiting on is caused by the code that does this check, it makes since to use $ifWritesSince, particularly if cluster is "*", to avoid excess overhead.

Never call this function after a big DB write that is still in a transaction. This only makes sense after the possible lag inducing changes were committed.

Parameters

float \| null	$ifWritesSince	Only wait if writes were done since this UNIX timestamp
string \| bool	$wiki	Wiki identifier accepted by wfGetLB
string \| bool	$cluster	Cluster name accepted by LBFactory. Default: false.
int \| null	$timeout	Max wait time. Default: 60 seconds (cli), 1 second (web)

Returns: bool Success (able to connect and no timeouts reached)

Deprecated:: since 1.27 Use LBFactory::waitForReplication

Definition at line 2698 of file GlobalFunctions.php.

◆ wfWarn()

wfWarn	(	$msg,
		$callerOffset = `1`,
		$level = `E_USER_NOTICE`
	)

Send a warning either to the debug log or in a PHP error depending on $wgDevelopmentWarnings.

To log warnings in production, use wfLogWarning() instead.

Parameters

string	$msg	Message to send
int	$callerOffset	Number of items to go back in the backtrace to find the correct caller (1 = function calling wfWarn, ...)
int	$level	PHP error level; defaults to E_USER_NOTICE; only used when $wgDevelopmentWarnings is true

Definition at line 1065 of file GlobalFunctions.php.

Referenced by Exif\__construct(), TextContent\__construct(), Action\__construct(), MediaWiki\Storage\SqlBlobStore\decompressData(), ApiEditPage\execute(), ForeignAPIRepo\fileExistsBatch(), Http\get(), MediaWiki\Special\SpecialPageFactory\getAliasList(), CacheHelper\getCachedValue(), WikiPage\getContentModel(), Action\getContext(), DifferenceEngine\getEngine(), ContribsPager\getExtraSortFields(), ContribsPager\getIndexField(), ParserCache\getKey(), MediaWiki\Revision\RevisionStore\getKnownCurrentRevision(), MediaWiki\Special\SpecialPageFactory\getLocalNameFor(), Language\getMagic(), MediaWiki\Revision\SlotRoleRegistry\getRoleHandler(), ChangeTags\getSoftwareTags(), MediaWiki\initializeArticle(), Html\inlineScript(), Linker\link(), Html\linkedScript(), MediaWiki\Revision\RevisionStoreCacheRecord\loadFreshRow(), Linker\makeBrokenImageLinkObj(), MediaWiki\Revision\RevisionStore\newRevisionFromArchiveRow(), MediaWiki\Revision\RevisionStore\newRevisionFromRowAndSlots(), Html\openElement(), BacklinkJobUtils\partitionBacklinkJob(), Autopromote\recCheckCondition(), FileBackendGroup\register(), and EditPage\showEditForm().

◆ wfWikiID()

wfWikiID ( )

Get an ASCII string identifying this wiki This is used as a prefix in memcached keys.

Returns: string

Definition at line 2521 of file GlobalFunctions.php.

References $wgDBname, and $wgDBprefix.