Global functions used everywhere. More...

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

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

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

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

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

	wfArrayDiff2_cmp ($a, $b)

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

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

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

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

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

	wfBaseConvert ($input, $sourceBase, $destBase, $pad=1, $lowercase=true, $engine= 'auto')
	Convert an arbitrarily-long digit string from one numeric base to another, optionally zero-padding to a minimum column width. More...

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

	wfBCP47 ($code)
	Get the normalised IETF language tag See unit test for examples. More...

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

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

	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. More...

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

	wfClientAcceptsGzip ($force=false)

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

	wfCountDown ($seconds)
	Count down from $seconds to zero on the terminal, with a one-second pause between showing each number. More...

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

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

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

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

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

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

	wfErrorLog ($text, $file, array $context=[])
	Log to a file without getting "file size exceeded" signals. More...

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

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

	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. More...

	wfExpandIRI_callback ($matches)
	Private callback for wfExpandIRI. More...

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

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

	wfFixSessionID ()

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

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

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

	wfGetCache ($cacheType)
	Get a specific cache object. More...

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

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

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

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

	wfGetLBFactory ()
	Get the load balancer factory object. More...

	wfGetMainCache ()
	Get the main cache object. More...

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

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

	wfGetParserCacheStorage ()
	Get the cache object used by the parser cache. More...

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

	wfGetScriptUrl ()
	Get the script URL. More...

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

	wfHostname ()
	Fetch server name for use in error reporting etc. More...

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

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

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

	wfInitShellLocale ()
	Workaround for http://bugs.php.net/bug.php?id=45132 escapeshellarg() destroys non-ASCII characters if LANG is not a UTF-8 locale. More...

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

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

	wfIsHHVM ()
	Check if we are running under HHVM. More...

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

	wfIsWindows ()
	Check if the operating system is Windows. More...

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

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

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

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

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

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

	wfLogProfilingData ()

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

	wfMakeUrlIndexes ($url)
	Make URL indexes, appropriate for the el_index field of externallinks. More...

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

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

	wfMemoryLimit ()
	Set PHP's memory limit to the larger of php.ini or $wgMemoryLimit. More...

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

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

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

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

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

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

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

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

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

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

	wfQueriesMustScale ()
	Should low-performance queries be disabled? More...

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

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

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

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

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

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

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

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

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

	wfResetSessionID ()
	Reset the session id. More...

	wfRestoreWarnings ()

	wfRunHooks ($event, array $args=[], $deprecatedVersion=null)
	Call hook functions defined in $wgHooks. More...

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

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

	wfSetupSession ($sessionId=false)
	Initialise php session. More...

	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. More...

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

	wfShellExecDisabled ()
	Check if wfShellExec() is effectively disabled via php.ini config. More...

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

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

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

	wfShowingResults ($offset, $limit)

	wfSplitWikiID ($wiki)
	Split a wiki ID into DB name and table prefix. More...

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

	wfSuppressWarnings ($end=false)
	Reference-counted warning suppression. More...

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

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

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

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

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

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

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

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

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

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

	wfUseMW ($req_ver)
	This function works like "use VERSION" in Perl except it checks the version of MediaWiki, the program will die with a backtrace if the current version of MediaWiki is less than the version provided. More...

	wfUsePHP ($req_ver)
	This function works like "use VERSION" in Perl, the program will die with a backtrace if the current version of PHP is less than the version provided. More...

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

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

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

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

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	(	$type,
		$avail
	)

private

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

Definition at line 1913 of file GlobalFunctions.php.

Referenced by GlobalTest\testMimeTypeMatch().

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 1877 of file GlobalFunctions.php.

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 498 of file GlobalFunctions.php.

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

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 212 of file GlobalFunctions.php.

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 176 of file GlobalFunctions.php.

Referenced by WikiPage\doRollback(), EditPage\getEditPermissionErrors(), GlobalTest\testWfArrayDiff2(), and UploadBase\verifyTitlePermissions().

wfArrayDiff2_cmp	(	$a,
		$b
	)

Parameters

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

Returns: int

Definition at line 185 of file GlobalFunctions.php.

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

Returns: array

Definition at line 267 of file GlobalFunctions.php.

Referenced by DeletedContributionsPage\getSubTitle().

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 3695 of file GlobalFunctions.php.

Referenced by ExtensionRegistry\exportExtractedData(), and WfArrayPlus2dTest\testWfArrayPlus2d().

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 406 of file GlobalFunctions.php.

Referenced by WebRequest\appendQueryArray(), SkinTemplate\buildPersonalUrls(), SpecialPage\checkLoginSecurityLevel(), CurlHttpRequest\execute(), PhpHttpRequest\execute(), SpecialNewpages\execute(), Title\fixUrlQueryArgs(), AllMessagesTablePager\formatValue(), WebInstallerOptions\getCCPartnerUrl(), MediaTransformOutput\getDescLinkAttribs(), FileRepo\getDescriptionStylesheetUrl(), getEscapedProfileUrl(), FormAction\getForm(), FormSpecialPage\getForm(), SpecialRunJobs\getQuerySignature(), WebInstaller\getUrl(), AuthManagerSpecialPage\handleReauthBeforeExecute(), UserNotLoggedIn\report(), SkinTemplate\setupTemplateForOutput(), PurgeAction\show(), OutputPage\showPermissionsErrorPage(), GlobalTest\testArrayToCGI(), GlobalTest\testArrayToCGI2(), and GlobalTest\testCgiRoundTrip().

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 626 of file GlobalFunctions.php.

Referenced by WfAssembleUrlTest\testWfAssembleUrl().

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 1536 of file GlobalFunctions.php.

Referenced by MWDebug\deprecated().

wfBaseConvert	(	$input,
		$sourceBase,
		$destBase,
		$pad = `1`,
		$lowercase = `true`,
		$engine = `'auto'`
	)

Convert an arbitrarily-long digit string from one numeric base to another, optionally zero-padding to a minimum column width.

Supports base 2 through 36; digit values 10-36 are represented as lowercase letters a-z. Input is case-insensitive.

Deprecated:: since 1.27 Use Wikimedia\base_convert() directly

Parameters

string	$input	Input number
int	$sourceBase	Base of the input number
int	$destBase	Desired base of the output
int	$pad	Minimum number of digits in the output (pad with zeroes)
bool	$lowercase	Whether to output in lowercase or uppercase
string	$engine	Either "gmp", "bcmath", or "php"

Returns: string|bool The output number as a string, or false on error

Definition at line 2888 of file GlobalFunctions.php.

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

Return the final portion of a pathname.

Reimplemented because PHP5's "basename()" is buggy with multibyte text. http://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 2811 of file GlobalFunctions.php.

Referenced by Exif\__construct(), ImageBuilder\checkMissingImage(), TestFileOpPerformance\doPerfTest(), and WfBaseNameTest\testBaseName().

wfBCP47 ( $code )

Get the normalised IETF language tag See unit test for examples.

Parameters

string $code The language code.

Returns: string The language code which complying with BCP 47 standards.

Definition at line 3383 of file GlobalFunctions.php.

Referenced by OutputPage\addAcceptLanguage(), SkinTemplate\buildContentNavigationUrls(), ImagePage\doRenderLangOpt(), WebInstallerOutput\getHeadAttribs(), OutputPage\getHeadLinksArray(), Language\getHtmlCode(), FeedItem\getLanguage(), SkinTemplate\getLanguages(), CoreParserFunctions\language(), Preferences\profilePreferences(), and WfBCP47Test\testBCP47().

wfBoolToStr ( $value )

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

Parameters

bool $value

Returns: string

Definition at line 3192 of file GlobalFunctions.php.

Referenced by LocalSettingsGenerator\__construct(), ApiRsd\formatRsdApiList(), LocalSettingsGenerator\getDefaultText(), MysqlInstaller\getLocalSettings(), and GlobalTest\testClientAcceptsGzipTest().

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 3577 of file GlobalFunctions.php.

Referenced by LoginSignupSpecialPage\execute(), Preferences\profilePreferences(), and User\requiresHTTPS().

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 451 of file GlobalFunctions.php.

Referenced by Linker\link(), Linker\makeBrokenImageLinkObj(), SpecialChangeEmail\onSuccess(), OutputPage\returnToMain(), LoginHelper\showReturnToPage(), SpecialCreateAccount\successfulAction(), GlobalTest\testCgiRoundTrip(), and GlobalTest\testCgiToArray().

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 1865 of file GlobalFunctions.php.

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

wfClientAcceptsGzip ( $force = false )

Todo:

document

FIXME: We may want to blacklist some broken browsers

Parameters

bool $force

Returns: bool Whereas client accept gzip compression

Definition at line 1633 of file GlobalFunctions.php.

Referenced by HTMLFileCache\loadFromFileCache(), HTMLFileCache\saveToFileCache(), GlobalTest\testClientAcceptsGzipTest(), and wfGzipHandler().

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 1307 of file GlobalFunctions.php.

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

wfCountDown ( $seconds )

Count down from $seconds to zero on the terminal, with a one-second pause between showing each number.

For use in command-line scripts.

Parameters

int $seconds

Definition at line 3263 of file GlobalFunctions.php.

Referenced by ResetUserTokens\execute(), UpdateMediaWiki\execute(), and UserOptions\warn().

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 997 of file GlobalFunctions.php.

Referenced by QuickTemplate\__construct(), PageArchive\__construct(), UploadFromChunks\__construct(), UploadFromStash\__construct(), SearchUpdate\__construct(), DifferenceEngine\__construct(), ApiMain\__construct(), Parser\__construct(), Revision\__construct(), UploadStashFile\__construct(), StubObject\_unstub(), LogPage\actionText(), ImageGalleryBase\add(), ParserTestRunner\addArticle(), MediaHandler\addMeta(), LinkBatch\addObj(), LocalFileMoveBatch\addOlds(), ParserOutput\addTrackingCategory(), Skin\afterContentHook(), Parser\braceSubstitution(), SkinTemplate\buildContentActionUrls(), EmailNotification\canSendUserTalkEmail(), AjaxResponse\checkLastModified(), OutputPage\checkLastModified(), UploadBase\checkSvgScriptCallback(), UploadBase\checkXMLEncodingMissmatch(), JobQueueDB\claimOldest(), LocalRepo\cleanupDeletedBatch(), UploadBase\cleanupTempFile(), SpecialEditWatchlist\cleanupWatchlist(), UploadStash\clear(), CloneDatabase\cloneTableStructure(), Revision\compressRevisionText(), UploadFromChunks\concatenateChunks(), Article\confirmDelete(), DjVuImage\convertDumpToXML(), UploadBase\createFromRequest(), BaseDump\debug(), WikiImporter\debug(), RecompressTracked\debug(), SVGReader\debug(), SectionProfiler\debug(), Block\defaultRetroactiveAutoblock(), Article\delete(), Block\deleteIfExpired(), User\deleteNewtalk(), ChangeTags\deleteTagEverywhere(), UploadBase\detectScript(), UploadBase\detectVirus(), DiffEngine\diffInternal(), Parser\disableCache(), BitmapMetadataHandler\doApp13(), Block\doAutoblock(), JobQueueDB\doBatchPushInternal(), WikiPage\doDeleteArticleReal(), WikiPage\doEditUpdates(), MockImageHandler\doFakeTransform(), WikiFilePage\doPurge(), DatabaseMssql\doQuery(), DatabaseOracle\doQuery(), Block\doRetroactiveAutoblock(), UserrightsPage\doSaveUserGroups(), TransformationalImageHandler\doTransform(), DjVuHandler\doTransform(), WikiRevision\downloadSource(), EditPage\edit(), ZipDirectoryReader\error(), ApiUpload\execute(), SpecialUserLogout\execute(), ChangesFeed\execute(), SpecialUpload\execute(), LocalFileRestoreBatch\execute(), PoolWorkArticleView\fallback(), Article\fetchContentObject(), IcuCollation\fetchFirstLetterData(), DatabaseMssql\fieldExists(), DatabaseMssql\fieldInfo(), DiffEngine\find_middle_snake(), BlockLevelPass\findColonNoLinks(), WikiImporter\finishImportPage(), FormatMetadata\flattenArrayReal(), DeletedContribsPager\formatRow(), ContribsPager\formatRow(), FileRepo\freeTemp(), LCStoreCDB\get(), ParserCache\get(), MediaWiki\Interwiki\ClassicInterwikiLookup\getAllPrefixesCached(), User\getBlockedStatus(), CoreParserFunctions\getCachedRevisionObject(), PoolWorkArticleView\getCachedWork(), ContextSource\getContext(), Profiler\getContext(), Action\getContext(), SpecialPage\getContext(), Article\getContext(), SpecialVersion\getCreditsForExtension(), ForeignDBFile\getDescriptionText(), File\getDescriptionText(), UploadStash\getFile(), DoubleRedirectJob\getFinalDestination(), WikiFilePage\getForeignCategories(), GenderCache\getGenderOf(), MediaHandlerFactory\getHandler(), DjVuImage\getInfo(), SpecialUpload\getInitialPageText(), MediaWiki\Interwiki\ClassicInterwikiLookup\getInterwikiCacheEntry(), ParserCache\getKey(), ResourceLoaderContext\getLanguage(), TransformationalImageHandler\getMagickVersion(), RequestContext\getMainAndWarn(), GIFHandler\getMetadata(), PNGHandler\getMetadata(), PNGMetadataExtractor\getMetadata(), GIFMetadataExtractor\getMetadata(), TiffHandler\getMetadata(), JpegHandler\getMetadata(), DjVuHandler\getMetadata(), SvgHandler\getMetadata(), DjVuHandler\getMetaTree(), DjVuImage\getMultiPageInfo(), WebRequestUpload\getName(), Title\getNsText(), DjVuImage\getPageInfo(), WikiPage\getParserOutput(), SpecialEmailUser\getPermissionsError(), EditPage\getPreloadedContent(), UserCache\getProp(), Title\getRestrictionTypes(), ExternalStoreDB\getSlave(), SpecialEmailUser\getTarget(), ForeignAPIRepo\getThumbError(), ForeignAPIRepo\getThumbUrl(), UploadStashFile\getThumbUrl(), ForeignAPIRepo\getThumbUrlFromCache(), Title\getTitleValue(), Parser\getUserSig(), Parser\getVariableValue(), File\getViewURL(), XCFHandler\getXCFMetaData(), OutputPage\haveCacheVaryCookies(), ThumbnailRenderJob\hitThumbUrl(), ForeignAPIRepo\httpGet(), EditPage\importFormData(), WikiRevision\importLogItem(), WikiRevision\importOldRevision(), WikiRevision\importUpload(), Block\insert(), ExternalStore\insertWithFallback(), EditPage\internalAttemptSave(), User\isBlockedFrom(), FileCacheBase\isCacheGood(), DjVuHandler\isEnabled(), SvgHandler\isEnabled(), FileDependency\isExpired(), LocalisationCache\isExpired(), Block\isExpired(), WebPHandler\isMetadataValid(), ExifBitmapHandler\isMetadataValid(), PNGHandler\isMetadataValid(), GIFHandler\isMetadataValid(), MovePage\isValidMoveTarget(), Title\isValidMoveTarget(), Block\isWhitelistedFromAutoblocks(), MessageCache\load(), SiteStats\loadAndLazyInit(), ChangesFeed\loadFromCache(), User\loadFromCache(), HTMLFileCache\loadFromFileCache(), AjaxResponse\loadFromMemcached(), User\loadOptions(), Linker\makeExternalImage(), Linker\makeExternalLink(), Linker\makeImageLink(), Linker\makeMediaLinkFile(), ImportStreamSource\newFromURL(), RawAction\onView(), UploadDumper\outputItem(), ApiBase\parseMsg(), SearchMySQL\parseQuery(), SearchSqlite\parseQuery(), SearchPostgres\parseQuery(), BacklinkCache\partition(), DiffHistoryBlob\patch(), AjaxDispatcher\performAction(), ApiUpload\performStash(), User\pingLimiter(), MediaWiki\preOutputCommit(), SkinTemplate\prepareQuickTemplate(), SpecialUpload\processUpload(), LocalFile\purgeThumbList(), BacklinkCache\queryLinks(), SvgHandler\rasterize(), TextPassDumper\readDump(), LocalisationCache\recache(), LocalFile\recordUpload2(), UploadStash\removeFileNoAuth(), Parser\renderImageGallery(), WikiPage\replaceSectionAtRev(), Parser\replaceVariables(), Http\request(), MediaWiki\restInPeace(), DjVuImage\retrieveMetaData(), JpegHandler\rotate(), BitmapHandler\rotate(), ThumbnailRenderJob\run(), DoubleRedirectJob\run(), ParserTestRunner\runTest(), RequestContext\sanitizeLangCode(), ParserCache\save(), FileCacheBase\saveText(), HTMLFileCache\saveToFileCache(), SearchPostgres\searchQuery(), JpegMetadataExtractor\segmentSplitter(), UserMailer\send(), OutputPage\sendCacheControl(), UserMailer\sendInternal(), UserMailer\sendWithPear(), ApiMain\setCacheMode(), LanguageClassesTestCase\setUp(), ParserTestTopLevelSuite\setUp(), UploadFromUrlTestSuite\setupUploadDir(), ViewAction\show(), LocalRepo\skipWriteOperationIfSha1(), User\spreadBlock(), UploadStash\stashFile(), FileRepo\storeBatch(), DatabaseMssql\tableExists(), ParserTestTopLevelSuite\tearDown(), ParserTestRunner\teardownDatabase(), GlobalTest\testDebugFunctionTest(), ApiUploadTest\testUploadChunks(), WikiImporter\throwXmlError(), SVGReader\throwXmlError(), MediaWiki\Tidy\RaggettBase\tidy(), File\transform(), BitmapHandler\transformCustom(), BitmapHandler\transformGd(), BitmapHandler\transformImageMagick(), BitmapHandler\transformImageMagickExt(), LocalisationCacheBulkLoad\trimCache(), SpecialUploadStash\tryClearStashedUploads(), Article\tryFileCache(), PageArchive\undelete(), PageArchive\undeleteRevisions(), Block\update(), UploadFromChunks\updateChunkStatus(), User\updateNewtalk(), OldLocalFile\upgradeRow(), LocalFile\upgradeRow(), HTMLFileCache\useFileCache(), LogEventsList\userCanBitfield(), Revision\userCanBitfield(), SvgHandler\validateParam(), ImageHandler\validateThumbParams(), UploadBase\verifyExtension(), UploadBase\verifyFile(), UploadBase\verifyMimeType(), Article\view(), WikiImporter\warn(), and wfGzipHandler().

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 1508 of file GlobalFunctions.php.

Referenced by MWDebug\getCallerDescription().

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 1090 of file GlobalFunctions.php.

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 1055 of file GlobalFunctions.php.

Referenced by GlobalTest\testDebugFunctionTest().

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

Throws a warning that $function is deprecated.

Parameters

string	$function
string \| bool	$version	Version of MediaWiki that the function was deprecated in (Added in 1.19).
string \| bool	$component	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)

Returns: null

Definition at line 1126 of file GlobalFunctions.php.

Referenced by RevisiondeleteAction\__construct(), MailAddress\__construct(), StripState\__construct(), WikiImporter\__construct(), Block\__construct(), ApiResult\__construct(), OutputPage\__construct(), ImageGallery\__construct(), LoginForm\__construct(), DeprecatedGlobal\_newObject(), OutputPage\addExtensionStyle(), ApiQueryLogEvents\addLogParams(), OutputPage\addParserOutputNoText(), WatchedItem\addWatch(), MediaWiki\Session\SessionManager\autoCreateUser(), Job\batchInsert(), WebRequest\checkSessionCookie(), User\clearCookie(), LoginForm\clearCreateaccountToken(), LoginForm\clearLoginThrottle(), LoginForm\clearLoginToken(), User\comparePasswords(), User\createNew(), User\crypt(), WikiPage\doEdit(), Article\doEdit(), WatchedItem\duplicateEntries(), User\edits(), Parser\extractTagsAndParams(), Article\fetchContent(), Title\fixUrlQueryArgs(), DummyLinker\formatSize(), Linker\formatSize(), DummyLinker\formatTemplates(), Linker\formatTemplates(), WatchedItem\fromUserTitle(), WikiPage\getAutosummary(), Article\getContent(), LoginForm\getCreateaccountToken(), User\getEditTokenTimestamp(), HTMLForm\getErrors(), OutputPage\getExtStyle(), LoginSignupSpecialPage\getFakeTemplate(), OutputPage\getHeadLinks(), DummyLinker\getInternalLinkAttributes(), Linker\getInternalLinkAttributes(), DummyLinker\getInternalLinkAttributesObj(), Linker\getInternalLinkAttributesObj(), DummyLinker\getInterwikiLinkAttributes(), Linker\getInterwikiLinkAttributes(), ApiPageSet\getInvalidTitles(), JsonContent\getJsonData(), MWLBFactory\getLBFactoryClass(), Linker\getLinkAttributesInternal(), DummyLinker\getLinkColour(), Linker\getLinkColour(), SpecialPageFactory\getList(), MWExceptionHandler\getLogId(), LoginForm\getLoginToken(), ApiBase\getModuleProfileName(), SearchEngine\getOpenSearchTemplate(), SpecialPageFactory\getPage(), User\getPasswordFactory(), ApiBase\getProfileDBTime(), ApiBase\getProfileTime(), Parser\getRandomString(), Revision\getRawComment(), Revision\getRawUser(), Revision\getRawUserText(), Database\getSearchEngine(), WikiRevision\getText(), WikiPage\getText(), Revision\getText(), Article\getText(), Title\getTitleInvalidRegex(), ArchivedFile\getUserText(), MediaWikiTestCase\hideDeprecated(), LoginForm\incLoginThrottle(), LoginForm\incrementLoginThrottle(), VFormHTMLForm\isVForm(), HTMLForm\isVForm(), WatchedItem\isWatched(), Linker\link(), ChangeTags\listExtensionActivatedTags(), ChangeTags\listExtensionDefinedTags(), Title\moveNoAuth(), Article\onArticleCreate(), Article\onArticleDelete(), Article\onArticleEdit(), SkinTemplate\outputPage(), WikiPage\prepareTextForEdit(), ApiBase\profileDBIn(), ApiBase\profileDBOut(), OutputPage\rateLimited(), ResourceLoaderFileModule\readStyleFiles(), WatchedItem\removeWatch(), MagicWord\replaceMultiple(), Parser\replaceUnusualEscapes(), Hooks\run(), ApiBase\safeProfileOut(), Article\selectFields(), User\setCookie(), LoginForm\setCreateaccountToken(), User\setExtendedLoginCookie(), LoginForm\setLoginToken(), Skin\showIPinHeader(), UploadBase\stashFileGetKey(), UploadBase\stashSession(), DifferenceEngine\textDiff(), Parser\uniqPrefix(), SiteStats\views(), wfExtractThumbParams(), OutputPage\wrapWikiMsg(), and MediaWiki\Session\PHPSessionHandler\write().

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 2678 of file GlobalFunctions.php.

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

wfErrorLog	(		$text,
			$file,
		array	$context = `[]`
	)

Log to a file without getting "file size exceeded" signals.

Can also log to TCP or UDP with the syntax udp://host:port/prefix. This will send lines to the specified port, prefixed by the specified prefix and a space.

Since: 1.25 support for additional context data

Parameters

string	$text
string	$file	Filename
array	$context	Additional logging context data

Exceptions

MWException

Deprecated:: since 1.25 Use \MediaWiki\Logger\LegacyLogger::emit or UDPTransport

Definition at line 1170 of file GlobalFunctions.php.

wfEscapeShellArg ( )

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 ... strings to escape and glue together, or a single array of strings parameter

Returns: string

Definition at line 2208 of file GlobalFunctions.php.

Referenced by DumpPipeOutput\__construct(), MimeMagic\applyDefaultParameters(), CheckSyntax\checkFileWithCli(), DumpPipeOutput\closeAndRename(), UploadBase\detectVirus(), PopulateImageSha1\doDBUpdates(), DjVuHandler\doTransform(), HHVMMakeRepo\execute(), CheckSyntax\getGitModifiedFiles(), GitInfo\getHeadCommitDate(), TransformationalImageHandler\getMagickVersion(), Installer\locateExecutable(), ParserTestPrinter\quickDiff(), SvgHandler\rasterize(), ResourceLoaderImage\rasterize(), Maintenance\readlineEmulation(), CheckStorage\restoreText(), DjVuImage\retrieveMetaData(), JpegHandler\rotate(), BitmapHandler\rotate(), Dump7ZipOutput\setup7zCommand(), RecompressTracked\startReplicaProcs(), SevenZipStream\stream_open(), ExifBitmapHandler\swapICCProfile(), WfEscapeShellArgTest\testMultipleArgs(), WfEscapeShellArgTest\testMultipleArgsAsArray(), WfEscapeShellArgTest\testSingleInput(), DifferenceEngine\textDiff(), BitmapHandler\transformCustom(), RandomImageGenerator\writeImageWithApi(), and RandomImageGenerator\writeImageWithCommandLine().

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

Returns: string

Definition at line 1667 of file GlobalFunctions.php.

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 886 of file GlobalFunctions.php.

Referenced by Skin\printSource(), and GlobalTest\testExpandIRI().

wfExpandIRI_callback ( $matches )

Private callback for wfExpandIRI.

Parameters

array $matches

Returns: string

Definition at line 899 of file GlobalFunctions.php.

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	$defaultProto	One of the PROTO_* constants. Determines the protocol to use if $url or $wgServer is protocol-relative

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

Definition at line 550 of file GlobalFunctions.php.

Referenced by MWHttpRequest\__construct(), ApiQuerySiteinfo\appendGeneralInfo(), ApiQuerySiteinfo\appendInterwikiMap(), ApiQuerySiteinfo\appendRightsInfo(), EmailNotification\composeCommonMailtext(), SpecialApiHelp\execute(), ApiQueryLangLinks\execute(), ApiQueryExternalLinks\execute(), ApiQueryIWLinks\execute(), CdnCacheUpdate\expand(), ApiQueryInfo\extractPageInfo(), CoreParserFunctions\filepath(), ApiParse\formatIWLinks(), ApiParse\formatLangLinks(), File\getCanonicalUrl(), Title\getCanonicalURL(), SpecialVersion\getEntryPointInfo(), RevertAction\getFormFields(), WebRequest\getFullRequestURL(), File\getFullUrl(), Title\getFullURL(), OutputPage\getHeadLinksArray(), ApiQueryImageInfo\getInfo(), LocalRepo\getInfo(), Title\getInternalURL(), ApiRsd\getRsdApiList(), FeedItem\getUniqueId(), ForeignAPIRepo\httpGet(), MediaWiki\main(), RevertAction\onSuccess(), RSSFeed\outHeader(), RSSFeed\outItem(), OutputPage\output(), SpecialUploadStash\outputRemoteScaledThumb(), MediaWiki\performAction(), FileDeleteForm\prepareMessage(), CSSMin\remapOne(), ApiQueryExtLinksUsage\run(), ApiOpenSearch\search(), SearchSuggestion\setSuggestedTitle(), EditPage\showIntro(), ApiMain\substituteResultWithError(), SpecialSearchText\testSubPageRedirect(), WfExpandUrlTest\testWfExpandUrl(), File\transform(), MediaWiki\tryNormaliseRedirect(), and wfStreamThumb().

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

Find a file.

Shortcut for RepoGroup::singleton()->findFile()

Parameters

string	$title	String or Title 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 3114 of file GlobalFunctions.php.

Referenced by UploadFromUrlTest\deleteFile(), ApiTestCaseUpload\deleteFileByTitle(), SpecialRedirect\dispatchFile(), MovePageForm\doSubmit(), ApiImageRotate\execute(), ApiMove\execute(), DeleteBatch\execute(), FileDuplicateSearchPage\execute(), WantedFilesPage\existenceCheck(), Parser\fetchFileNoRegister(), CoreParserFunctions\filepath(), SearchNearMatcher\getNearMatchInternal(), SearchResult\initFromTitle(), Title\isAlwaysKnown(), WikiFilePage\loadFile(), ImagePage\loadFile(), Linker\makeBrokenImageLinkObj(), Linker\makeMediaLinkObj(), Linker\makeThumbLink2(), UploadDumper\outputItem(), SpecialSearch\showHit(), EditPage\showIntro(), TraditionalImageGallery\toHTML(), and Title\validateFileMoveOperation().

wfFixSessionID ( )

Deprecated:: since 1.27, PHP's session generation isn't used with MediaWiki\Session\SessionManager

Definition at line 2898 of file GlobalFunctions.php.

wfForeignMemcKey	(	$db,
		$prefix
	)

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 2991 of file GlobalFunctions.php.

Referenced by JobQueueDB\getCacheKey(), JobQueue\getRootJobCacheKey(), and GlobalTest\testWfForeignMemcKey().

wfFormatStackFrame ( $frame )

Return a string representation of frame.

Parameters

array $frame

Returns: string

Definition at line 1604 of file GlobalFunctions.php.

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 1589 of file GlobalFunctions.php.

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

wfGetCache ( $cacheType )

Get a specific cache object.

Parameters

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

Returns: BagOStuff

Definition at line 3411 of file GlobalFunctions.php.

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

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 1573 of file GlobalFunctions.php.

Referenced by StubObject\_unstub(), DeferredUpdates\addCallableUpdate(), MediaWikiTestCase\assertSelect(), WfGetCallerTest\callerOne(), ParserTestRunner\checkSetupDone(), ParserTestTopLevelSuite\debug(), WfGetCallerTest\intermediateFunction(), MWDebug\log(), and WfGetCallerTest\testZero().

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: Database

Definition at line 3073 of file GlobalFunctions.php.

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 1337 of file GlobalFunctions.php.

Referenced by Skin\doEditSectionLink(), SpecialAllMessages\execute(), MessageCache\get(), DateFormatter\getInstance(), CodeContentHandler\getPageLanguage(), ContentHandler\getPageLanguage(), Title\getPageLanguage(), CodeContentHandler\getPageViewLanguage(), Title\getPageViewLanguage(), DifferenceEngine\setTextLanguage(), ContentHandlerTest\testGetPageLanguage(), and Linker\tocList().

wfGetLB ( $wiki = false )

Get a load balancer object.

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

Parameters

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

Returns: LoadBalancer

Definition at line 3086 of file GlobalFunctions.php.

Referenced by SqlDataUpdate\__construct(), ApiQuerySiteinfo\appendDbReplLagInfo(), MediaWiki\Auth\AuthManager\autoCreateUser(), ApiMain\checkBotReadOnly(), ApiMain\checkMaxLag(), ApiMain\checkReadOnly(), MysqlUpdater\doTemplatelinksUpdate(), SpecialContributions\execute(), GetLagTimes\execute(), GetSlaveServer\execute(), DatabaseLag\execute(), InitEditCount\execute(), DeletedContributionsPage\execute(), UpdateSpecialPages\execute(), MwSql\execute(), DBAccessBase\getConnection(), BotPassword\getDB(), ForeignDBViaLBRepo\getDBFactory(), DBAccessBase\getLoadBalancer(), ForeignDBViaLBRepo\getMasterDB(), ForeignDBViaLBRepo\getSlaveDB(), Revision\getTitle(), Skin\lastModified(), User\load(), Revision\loadMutableFields(), WikiPage\loadPageData(), DBSiteStoreTest\newDBSiteStore(), Revision\newFromConds(), SpecialWatchlist\outputChangesList(), WikiPage\replaceSectionContent(), and ParserTestRunner\setupDatabase().

wfGetLBFactory ( )

Get the load balancer factory object.

Deprecated:: since 1.27, use MediaWikiServices::getDBLoadBalancerFactory() instead.

Returns: LBFactory

Definition at line 3102 of file GlobalFunctions.php.

Referenced by BackupDumper\backupDb(), FileDeleteForm\doDelete(), SpecialExport\doExport(), MysqlUpdater\doTemplatelinksUpdate(), MwSql\execute(), ParserTestsMaintenance\execute(), TrackBlobs\findOrphanBlobs(), OrphanStats\getDB(), BotPassword\getDB(), RecompressTracked\getExtDB(), ExternalStoreDB\getLoadBalancer(), DBFileJournal\getMasterDB(), HTMLCacheUpdateJob\invalidateTitles(), AjaxDispatcher\performAction(), RebuildRecentchanges\rebuildRecentChangesTablePass1(), RebuildRecentchanges\rebuildRecentChangesTablePass2(), RebuildRecentchanges\rebuildRecentChangesTablePass3(), RebuildRecentchanges\rebuildRecentChangesTablePass4(), RebuildRecentchanges\rebuildRecentChangesTablePass5(), TextPassDumper\rotateDb(), RevDelList\setVisibility(), DeferredUpdatesTest\testDoUpdatesCLI(), and WatchedItemStore\updateNotificationTimestamp().

wfGetMainCache ( )

Get the main cache object.

Returns: BagOStuff

Definition at line 3420 of file GlobalFunctions.php.

Referenced by UploadFromUrlTestSuite\setUp(), CachingSiteStoreTest\testClear(), CachingSiteStoreTest\testGetSites(), CachingSiteStoreTest\testReset(), and CachingSiteStoreTest\testSaveSites().

wfGetMessageCacheStorage ( )

Get the cache object used by the message cache.

Returns: BagOStuff

Definition at line 3430 of file GlobalFunctions.php.

Referenced by UploadFromUrlTestSuite\setUp(), and MessageCache\singleton().

wfGetNull ( )

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

/dev/null

Returns: string

Definition at line 3201 of file GlobalFunctions.php.

Referenced by MediaWiki\Tidy\RaggettExternal\cleanWrapped(), and Dump7ZipOutput\setup7zCommand().

wfGetParserCacheStorage ( )

Get the cache object used by the parser cache.

Returns: BagOStuff

Definition at line 3440 of file GlobalFunctions.php.

Referenced by PurgeParserCache\execute(), and UploadFromUrlTestSuite\setUp().

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 2955 of file GlobalFunctions.php.

Referenced by IcuCollation\fetchFirstLetterData(), and Language\transformUsingPairFile().

wfGetScriptUrl ( )

Get the script URL.

Returns: string Script URL

Definition at line 3167 of file GlobalFunctions.php.

wfGlobalCacheKey ( )

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.

Since: 1.26

Parameters

string $args,...

Returns: string

Definition at line 3011 of file GlobalFunctions.php.

Referenced by MediaWiki\Auth\Throttler\clear(), MediaWiki\Auth\Throttler\increase(), and GlobalTest\testWfGlobalCacheKey().

wfHostname ( )

Fetch server name for use in error reporting etc.

Use real server name if available, so we know which machine in a server farm generated the current page.

Returns: string

Definition at line 1447 of file GlobalFunctions.php.

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

wfHttpError	(	$code,
		$label,
		$desc
	)

Provide a simple HTTP error.

Parameters

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

Definition at line 1775 of file GlobalFunctions.php.

Referenced by RawAction\getRawText(), MWExceptionRenderer\output(), AjaxDispatcher\performAction(), and MWException\report().

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

Increment a statistics counter.

Parameters

string	$key
int	$count

Returns: void

Definition at line 1263 of file GlobalFunctions.php.

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

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 2189 of file GlobalFunctions.php.

Referenced by MWHttpRequest\canMakeRequests(), Installer\envCheckCache(), MWHttpRequest\factory(), MWHttpRequestTester\factory(), UploadBase\isEnabled(), WebInstaller\startSession(), and MediaWiki\Session\PHPSessionHandlerTest\testInstall().

wfInitShellLocale ( )

Workaround for http://bugs.php.net/bug.php?id=45132 escapeshellarg() destroys non-ASCII characters if LANG is not a UTF-8 locale.

Definition at line 2553 of file GlobalFunctions.php.

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.

Parameters

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

Returns: bool

Definition at line 3509 of file GlobalFunctions.php.

Referenced by GlobalWithDBTest\testWfIsBadImage(), and TraditionalImageGallery\toHTML().

wfIsDebugRawPage ( )

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

Returns: bool

Definition at line 1031 of file GlobalFunctions.php.

wfIsHHVM ( )

Check if we are running under HHVM.

Returns: bool

Definition at line 2059 of file GlobalFunctions.php.

Referenced by TidySupport\__construct(), Installer\doEnvironmentChecks(), MWDebug\getDebugInfo(), UploadBase\isEnabled(), MWTidy\singleton(), and SpecialVersion\softwareInformation().

wfIsInfinity ( $str )

Determine input string is represents as infinity.

Parameters

string $str The string to determine

Returns: bool

Since: 1.25

Definition at line 3590 of file GlobalFunctions.php.

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

wfIsWindows ( )

Check if the operating system is Windows.

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

Definition at line 2046 of file GlobalFunctions.php.

Referenced by UIDGenerator\__construct(), Installer\envCheckGit(), Installer\envCheckGraphics(), TransformationalImageHandler\escapeMagickPath(), RebuildLocalisationCache\execute(), ParserTestsMaintenance\execute(), ParserTestPrinter\quickDiff(), Maintenance\readlineEmulation(), UserMailer\sendInternal(), SevenZipStream\stream_open(), WfShellExecTest\testBug67870(), WfEscapeShellArgTest\testMultipleArgs(), WfEscapeShellArgTest\testMultipleArgsAsArray(), MailAddressTest\testNewFromUser(), WfEscapeShellArgTest\testSingleInput(), MailAddressTest\testToString(), StructureTest\testUnitTestFileNamesEndWithTest(), GlobalTest\testWfShellWikiCmd(), MailAddress\toString(), and CLIParser\Wikitext().

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 110 of file GlobalFunctions.php.

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 131 of file GlobalFunctions.php.

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 147 of file GlobalFunctions.php.

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 162 of file GlobalFunctions.php.

wfLocalFile ( $title )

Get an object referring to a locally registered file.

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

Parameters

Title | string $title

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

Definition at line 3125 of file GlobalFunctions.php.

Referenced by ImageBuilder\addMissingImage(), PopulateImageSha1\doDBUpdates(), RevDelFileList\doPostCommitUpdates(), MovePageForm\doSubmit(), EraseArchivedFile\execute(), ApiQueryImageInfo\execute(), LocalFileMoveBatch\execute(), ImageListPager\formatValue(), FileContentHandler\getDataForSearchIndex(), UploadBase\getLocalFile(), SpecialUpload\getWatchCheck(), WikiRevision\importUpload(), MovePage\isValidFileMove(), MovePage\isValidMoveTarget(), Title\isValidMoveTarget(), WikiFilePage\loadFile(), ImagePage\loadFile(), MovePage\move(), LocalFile\move(), ThumbnailRenderJob\run(), UploadFromUrlTest\setUp(), ParserTestRunner\setupUploads(), LocalFileTest\testWfLocalFile(), PageArchive\undelete(), Title\validateFileMoveOperation(), wfStreamThumb(), and XmlDumpWriter\writeUploads().

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 1108 of file GlobalFunctions.php.

wfLogProfilingData ( )

Todo:: document

Definition at line 1180 of file GlobalFunctions.php.

Referenced by MediaWikiPHPUnitBootstrap\__destruct(), and MediaWiki\restInPeace().

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 1153 of file GlobalFunctions.php.

Referenced by Revision\compressRevisionText(), Revision\decompressRevisionText(), WikiPage\doDeleteArticleReal(), SpecialPageFactory\getPage(), SiteImporter\handleException(), OutputPage\parserOptions(), and OutputPage\transformFilePath().

wfMakeUrlIndexes ( $url )

Make URL indexes, appropriate for the el_index field of externallinks.

Parameters

string $url

Returns: array

Definition at line 909 of file GlobalFunctions.php.

Referenced by LinksUpdate\getExternalInsertions(), LinkFilterTest\testMakeLikeArrayWithValidPatterns(), and GlobalTest\testMakeUrlIndexes().

wfMatchesDomainList	(	$url,
		$domains
	)

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

Parameters

string	$url	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 963 of file GlobalFunctions.php.

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

wfMemcKey ( )

Make a cache key for the local wiki.

Parameters

string $args,...

Returns: string

Definition at line 2974 of file GlobalFunctions.php.

Referenced by PoolWorkArticleView\__construct(), LanguageConverter\__construct(), MediaWiki\Session\SessionBackend\__construct(), MediaWiki\Auth\AuthManager\autoCreateUser(), Preprocessor\cacheGetTree(), FileCacheBase\cacheMissKey(), Preprocessor\cacheSetTree(), MessageCache\clear(), MediaWiki\Session\TestBagOStuff\deleteSession(), WikiPage\doDeleteArticleReal(), ChangesFeed\execute(), FormatMetadata\fetchExtendedMetadata(), MediaWiki\Session\SessionManager\generateSessionId(), Skin\getCachedNotice(), CachingSiteStore\getCacheKey(), InfoAction\getCacheKey(), SpecialVersion\getCreditsForExtension(), DifferenceEngine\getDiffBodyCacheKey(), MediaWiki\Session\SessionManager\getEmptySessionInternal(), ApiHelp\getHelp(), MediaWiki\Interwiki\ClassicInterwikiLookup\getInterwikiCacheEntry(), MessageCache\getLocalCache(), MessageCache\getMsgFromNamespace(), BacklinkCache\getNumLinks(), ParserCache\getOptionsKey(), ParserCache\getParserOutputKey(), MediaWiki\Session\TestBagOStuff\getSession(), MediaWiki\Session\SessionManager\getSessionById(), MediaWiki\Session\TestBagOStuff\getSessionFromBackend(), UploadBase\getSessionStatus(), User\getTouched(), SiteStatsUpdate\getTypeCacheKey(), MessageCache\getValidationHash(), FileCacheBase\incrMissesRecent(), Block\isWhitelistedFromAutoblocks(), ChangeTags\listExplicitlyDefinedTags(), ChangeTags\listSoftwareActivatedTags(), ChangeTags\listSoftwareDefinedTags(), MessageCache\load(), MessageCache\loadFromDBWithLock(), ExtensionRegistry\loadFromQueue(), MediaWiki\Session\SessionManager\loadSessionInfoFromStore(), SiteStats\numberingroup(), BacklinkCache\partition(), User\pingLimiter(), RebuildRecentchanges\purgeFeeds(), Article\purgePatrolFooterCache(), ChangeTags\purgeTagCacheAll(), ChangeTags\purgeTagUsageCache(), MessageCache\replace(), MediaWiki\Session\SessionBackend\resetId(), MediaWiki\Session\SessionBackend\save(), MessageCache\saveToCaches(), MessageCache\saveToLocalCache(), MediaWiki\Session\TestBagOStuff\setRawSession(), UploadBase\setSessionStatus(), BagOStuffTest\setUp(), MessageCache\setValidationHash(), Article\showMissingArticle(), Article\showPatrolFooter(), ChangeTags\tagUsageStatistics(), BagOStuffTest\testAdd(), MediaWiki\Auth\AuthManagerTest\testAutoAccountCreation(), BagOStuffTest\testChangeTTL(), BagOStuffTest\testGet(), BagOStuffTest\testGetMulti(), BagOStuffTest\testGetScopedLock(), BagOStuffTest\testGetWithSetCallback(), BagOStuffTest\testIncr(), BagOStuffTest\testIncrWithInit(), BagOStuffTest\testMerge(), MediaWiki\Session\SessionBackendTest\testUnpersist(), GlobalTest\testWfMemcKey(), User\touch(), SiteStatsUpdate\tryDBUpdateInternal(), and MediaWiki\Session\SessionBackend\unpersist().

wfMemoryLimit ( )

Set PHP's memory limit to the larger of php.ini or $wgMemoryLimit.

Returns: int Resulting value of the memory limit.

Definition at line 3303 of file GlobalFunctions.php.

wfMerge	(		$old,
			$mine,
			$yours,
		&	$result
	)

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

Returns: bool

Definition at line 2600 of file GlobalFunctions.php.

Referenced by TextContentHandler\merge3(), and GlobalTest\testMerge().

wfMergeErrorArrays ( )

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 $array1,...

Returns: array

Definition at line 240 of file GlobalFunctions.php.

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

wfMessage ( $key )

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
mixed	$params,...	Normal message parameters

Returns: Message

Since: 1.17

See also: Message::__construct

Definition at line 1386 of file GlobalFunctions.php.

wfMessageFallback ( )

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|string[] $keys,... Message keys

Returns: Message

Since: 1.18

See also: Message::newFallbackSequence

Definition at line 1407 of file GlobalFunctions.php.

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

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	$mode	Chmod value to use, default is $wgDirectoryMode
string	$caller	Optional caller param for debugging.

Exceptions

MWException

Returns: bool

Definition at line 2093 of file GlobalFunctions.php.

Referenced by FileCacheBase\checkCacheDirs(), TextPassDumperDatabaseTest\checkpointHelper(), SqliteInstaller\dataDirOKmaybeCreate(), TransformationalImageHandler\doTransform(), DjVuHandler\doTransform(), SvgHandler\doTransform(), GenerateSitemap\execute(), MediaWikiTestCase\getNewTempDirectory(), ImageCleanup\pokeFile(), GitInfo\precomputeValues(), UploadFromUrlTestSuite\setupUploadDir(), LCStoreCDB\startWrite(), and GlobalTest\testWfMkdirParents().

wfMsgReplaceArgs	(	$message,
		$args
	)

Replace message parameter keys on the given formatted output.

Parameters

string	$message
array	$args

Returns: string

Access:: private

Definition at line 1420 of file GlobalFunctions.php.

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

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

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

Definition at line 1941 of file GlobalFunctions.php.

Referenced by GlobalTest\testNegotiateType().

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 290 of file GlobalFunctions.php.

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, either '://', ':' or '//' (see (2)).

Parameters

string $url A URL to parse

Returns: string[]|bool Bits of the URL in an associative array, per PHP docs, false on failure

Definition at line 816 of file GlobalFunctions.php.

Referenced by MWHttpRequest\__construct(), ApiAMCreateAccount\execute(), ApiLinkAccount\execute(), ApiClientLogin\execute(), LinkSearchPage\execute(), WikiReference\getDisplayName(), MediaWiki\getUrlDomainDistance(), WikiMap\getWikiWikiReferenceFromSites(), ThumbnailRenderJob\hitThumbUrl(), UploadFromUrl\isAllowedHost(), LinkFilter\makeLikeArray(), UserMailer\makeMsgId(), WfAssembleUrlTest\provideURLParts(), SquidPurgeClient\queuePurge(), RedisPubSubFeedEngine\send(), SpecialSearch\showInterwikiHit(), WfParseUrlTest\testWfParseUrl(), and MediaWiki\triggerJobs().

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 2161 of file GlobalFunctions.php.

Referenced by profile_point\display(), ParserTestPrinter\reportPercentage(), and GlobalTest\testWfPercentTest().

wfQueriesMustScale ( )

Should low-performance queries be disabled?

Returns: bool

Definition at line 3135 of file GlobalFunctions.php.

wfRandom ( )

Get a random decimal value between 0 and 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 316 of file GlobalFunctions.php.

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

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 334 of file GlobalFunctions.php.

wfReadOnly ( )

Check whether the wiki is in read-only mode.

Returns: bool

Definition at line 1273 of file GlobalFunctions.php.

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

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 1285 of file GlobalFunctions.php.

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

wfRecursiveRemoveDir ( $dir )

Remove a directory and all its content.

Does not hide error.

Parameters

string $dir

Definition at line 2136 of file GlobalFunctions.php.

Referenced by TextPassDumperDatabaseTest\checkpointHelper(), MediaWikiTestCase\setUp(), and MediaWikiTestCase\tearDown().

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 2835 of file GlobalFunctions.php.

Referenced by UploadDumper\outputItem().

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)

Parameters

string $urlPath URL path, potentially containing dot-segments

Returns: string URL path with all dot-segments removed

Definition at line 678 of file GlobalFunctions.php.

Referenced by CSSMin\remapOne(), and WfRemoveDotSegmentsTest\testWfRemoveDotSegments().

wfReportTime ( )

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.

Returns: string

Definition at line 1487 of file GlobalFunctions.php.

Referenced by SkinTemplate\prepareQuickTemplate().

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 1811 of file GlobalFunctions.php.

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

wfResetSessionID ( )

Reset the session id.

Deprecated:

since 1.27, use MediaWiki\Session\SessionManager instead

Since: 1.22

Definition at line 2908 of file GlobalFunctions.php.

wfRestoreWarnings ( )

Deprecated:: since 1.26, use MediaWiki\restoreWarnings() directly Restore error level to previous value

Definition at line 1991 of file GlobalFunctions.php.

wfRunHooks	(		$event,
		array	$args = `[]`,
			$deprecatedVersion = `null`
	)

Call hook functions defined in $wgHooks.

Parameters

string	$event	Event name
array	$args	Parameters passed to hook functions
string \| null	$deprecatedVersion	Optionally mark hook as deprecated with version number

Returns: bool True if no handler aborted the hook

Deprecated:: since 1.25 - use Hooks::run

Definition at line 3455 of file GlobalFunctions.php.

Referenced by HooksTest\testOldStyleHooks().

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 3151 of file GlobalFunctions.php.

Referenced by SpecialPage\addFeedLinks(), SpecialRedirect\dispatchLog(), SpecialRedirect\dispatchPage(), SpecialRedirect\dispatchRevision(), SpecialRecentChanges\doHeader(), SpecialApiHelp\execute(), SpecialContributions\execute(), RedirectSpecialPage\execute(), SpecialRecentChanges\execute(), LinkSearchPage\execute(), FileDuplicateSearchPage\execute(), ApiHelp\fixHelpLinks(), HTMLForm\getAction(), SpecialLog\getActionButtons(), ResourceLoaderStartUpModule\getConfigSettings(), SpecialVersion\getEntryPointInfo(), OutputPage\getHeadLinksArray(), ApiHelp\getHelpInternal(), TablePager\getLimitForm(), ApiOpenSearch\getOpenSearchTemplate(), UsersPager\getPageHeader(), ApiRsd\getRsdApiList(), HistoryPager\getStartBody(), CategoryPager\getStartForm(), HistoryAction\onView(), SpecialWatchlist\setTopText(), ApiTestCase\setUp(), SpecialMergeHistory\showMergeForm(), SpecialProtectedpages\showOptions(), SpecialProtectedtitles\showOptions(), SpecialSearch\showResults(), SpecialUndelete\showSearchForm(), ApiMain\substituteResultWithError(), UserrightsPage\switchForm(), SpecialEmailUser\userForm(), and SpecialWhatLinksHere\whatlinkshereForm().

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

As for wfSetVar except setting a bit.

Parameters

int	$dest
int	$bit
bool	$state

Returns: bool

Definition at line 1740 of file GlobalFunctions.php.

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 2933 of file GlobalFunctions.php.

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 1723 of file GlobalFunctions.php.

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

Returns: string Collected stdout as a string

Definition at line 2310 of file GlobalFunctions.php.

Referenced by UIDGenerator\__construct(), MimeMagic\applyDefaultParameters(), DjVuHandler\doTransform(), Installer\envCheckShellLocale(), SiteConfiguration\getConfig(), CheckSyntax\getGitModifiedFiles(), GitInfo\getHeadCommitDate(), TransformationalImageHandler\getMagickVersion(), Installer\locateExecutable(), ParserTestPrinter\quickDiff(), Maintenance\readlineEmulation(), DjVuImage\retrieveMetaData(), WfShellExecTest\testBug67870(), JpegPixelFormatTest\testPixelFormatRendering(), DifferenceEngine\textDiff(), RandomImageGenerator\writeImageWithApi(), and RandomImageGenerator\writeImageWithCommandLine().

wfShellExecDisabled ( )

Check if wfShellExec() is effectively disabled via php.ini config.

Returns: bool|string False or 'disabled'

Since: 1.22

Definition at line 2275 of file GlobalFunctions.php.

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

Definition at line 2544 of file GlobalFunctions.php.

Referenced by UploadBase\detectVirus(), SvgHandler\rasterize(), JpegHandler\rotate(), BitmapHandler\rotate(), ExifBitmapHandler\swapICCProfile(), BitmapHandler\transformCustom(), and BitmapHandler\transformImageMagick().

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").

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

Returns: string

Definition at line 2576 of file GlobalFunctions.php.

Referenced by CleanupSpam\execute(), SiteConfiguration\getConfig(), MWDocGen\init(), and GlobalTest\testWfShellWikiCmd().

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 3352 of file GlobalFunctions.php.

Referenced by Installer\envCheckMemory(), UploadBase\getMaxPhpUploadSize(), WebRequestUpload\isIniSizeOverflow(), WfShorthandToIntegerTest\testWfShorthandToInteger(), and GlobalTest\testWfShorthandToInteger().

wfShowingResults	(	$offset,
		$limit
	)

Todo:: document

Parameters

int	$offset
int	$limit

Returns: string

Definition at line 1622 of file GlobalFunctions.php.

wfSplitWikiID ( $wiki )

Split a wiki ID into DB name and table prefix.

Parameters

string $wiki

Returns: array

Definition at line 3040 of file GlobalFunctions.php.

Referenced by ForeignDBViaLBRepo\__construct(), JobQueueDB\getCacheKey(), JobQueueRedis\getQueueKey(), and JobQueue\getRootJobCacheKey().

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 3285 of file GlobalFunctions.php.

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

wfSuppressWarnings ( $end = false )

Reference-counted warning suppression.

Deprecated:

since 1.26, use MediaWiki\suppressWarnings() directly

Parameters

bool $end

Definition at line 1983 of file GlobalFunctions.php.

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 2074 of file GlobalFunctions.php.

Referenced by FSRepo\__construct(), UIDGenerator\__construct(), LocalisationCache\__construct(), UploadFromChunks\concatenateChunks(), FileBackendGroup\config(), ParserTestRunner\createRepoGroup(), MockFileBackend\doGetLocalCopyMulti(), FileBackendTest\doTestDoOperationsPipeline(), SvgHandler\doTransform(), WikiRevision\downloadSource(), WikiImporter\dumpTemp(), ApiImageRotate\execute(), HHVMMakeRepo\execute(), MWDocGen\execute(), TempFSFile\factory(), MockLocalRepo\getLocalCopy(), MockLocalRepo\getLocalReference(), MediaWikiTestCase\getNewTempFile(), UIDGenerator\getSequentialPerNodeIDs(), FileBackendGroup\guessMimeInternal(), JobRunner\loadBackoffs(), UploadFromUrl\makeTemporaryFile(), File\makeTransformTmpFile(), ClassicInterwikiLookupTest\populateCDB(), InterwikiTest\populateCDB(), FileBackendTest\provider_testStore(), ParserTestPrinter\quickDiff(), ResourceLoaderImage\rasterize(), CheckStorage\restoreText(), WebPHandlerTest\setUp(), MigrateFileRepoLayoutTest\setUp(), UploadStashTest\setUp(), JobRunner\syncBackoffDeltas(), and DifferenceEngine\textDiff().

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 3609 of file GlobalFunctions.php.

Referenced by WfThumbIsStandardTest\testIsStandard(), and wfStreamThumb().

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 2007 of file GlobalFunctions.php.

Referenced by Block\__construct(), OutputPage\adaptCdnTTL(), BlockTest\addDBData(), LinkCache\addLinkObj(), ApiQuerySiteinfo\appendExtensions(), ApiQuerySiteinfo\appendGeneralInfo(), SpecialRecentChanges\buildMainQueryConds(), ApiStashEdit\buildStashValue(), FileCacheBase\cacheTimestamp(), SiteStatsUpdate\cacheUpdate(), ApiStashEdit\checkCache(), ApiMain\checkConditionalRequestHeaders(), AjaxResponse\checkLastModified(), OutputPage\checkLastModified(), WikiPage\commitRollback(), User\confirmationToken(), FileBackendMultiWrite\consistencyCheck(), LanguageWa\date(), Language\date(), DifferenceEngine\debug(), JobRunner\debugCallback(), LocalFile\decodeRow(), SqlBagOStuff\deleteObjectsExpiringBefore(), SpecialUndelete\diffHeader(), ApiTestCase\doApiRequestWithToken(), MemoryFileBackend\doCopyInternal(), MemoryFileBackend\doCreateInternal(), DBFileJournal\doLogChangeBatch(), WikiPage\doPurge(), MysqlUpdater\doSchemaRestructuring(), MemoryFileBackend\doStoreInternal(), FileBackendTest\doTestGetFileStat(), ApiProtect\execute(), ApiUndelete\execute(), ApiMergeHistory\execute(), ApiSetNotificationTimestamp\execute(), ApiEditPage\execute(), SpecialExport\execute(), ApiQueryBlocks\execute(), ApiQueryDeletedrevs\execute(), ApiQueryFilearchive\execute(), RemoveUnusedAccounts\execute(), UploadStashCleanup\execute(), SpecialActiveUsers\execute(), FixTimestamps\execute(), ApiQueryImageInfo\execute(), PurgeParserCache\execute(), ApiQueryAllUsers\execute(), ImportTextFiles\execute(), ApiFeedWatchlist\execute(), UpdateSearchIndex\execute(), BenchmarkParse\execute(), ApiQueryUsers\execute(), GenerateSitemap\execute(), LocalFileRestoreBatch\execute(), JobRunner\executeJob(), CacheTime\expired(), ApiQueryWatchlist\extractOutputData(), ApiQueryInfo\extractPageInfo(), ApiQueryRevisionsBase\extractRevisionInfo(), ApiQueryLogEvents\extractRowInfo(), ApiQueryContributions\extractRowInfo(), ApiQueryRecentChanges\extractRowInfo(), HistoryAction\feedEmpty(), MediaWiki\Logger\LegacyLogger\formatAsWfDebugLog(), FeedUtils\formatDiff(), Language\formatExpiry(), SpecialUndelete\formatFileRow(), LogFormatter\formatParameterValueForApi(), SpecialMergeHistory\formatRevisionRow(), SpecialUndelete\formatRevisionRow(), RSSFeed\formatTime(), AtomFeed\formatTime(), ImageListPager\formatValue(), GenerateSitemap\generateLimit(), RevDelArchivedFileItem\getApiData(), RevDelRevisionItem\getApiData(), RevDelFileItem\getApiData(), Block\getAutoblockExpiry(), ApiQueryUserInfo\getBlockInfo(), CacheTime\getCacheTime(), NewUsersLogFormatter\getComment(), ApiQueryUserInfo\getCurrentUserInfo(), LocalFile\getDescriptionTouched(), ProtectionForm\getExpiry(), FormatMetadata\getExtendedMetadataFromFile(), ApiQueryWatchlistIntegrationTest\getExternalRC(), User\getFirstEditTimestamp(), ApiQueryImageInfo\getInfo(), OutputPage\getJSVars(), MachineReadableRCFeedFormatter\getLine(), PNGMetadataExtractor\getMetadata(), SpecialRandomInCategory\getMinAndMaxForCat(), ApiParamInfo\getModuleInfo(), MediaWiki\Auth\AbstractPasswordPrimaryAuthenticationProvider\getNewPasswordExpiry(), BlockLogFormatter\getParametersForApi(), MediaWiki\Auth\LocalPasswordPrimaryAuthenticationProvider\getPasswordResetData(), PageArchive\getPreviousRevision(), ActiveUsersPager\getQueryInfo(), RawAction\getRawText(), ImageHistoryList\getThumbForLine(), MockFSFile\getTimestamp(), FSFile\getTimestamp(), RevisionItemBase\getTimestamp(), ForeignAPIFile\getTimestamp(), DatabaseLogEntry\getTimestamp(), RCDatabaseLogEntry\getTimestamp(), ArchivedFile\getTimestamp(), WikiPage\getTimestamp(), ManualLogEntry\getTimestamp(), Revision\getTimestamp(), FileJournal\getTimestampedUUID(), Revision\getTimestampFromId(), User\getTouched(), ContribsPager\getUserCond(), Parser\getVariableValue(), ApiQueryInfo\getVisitingWatcherInfo(), ForeignAPIRepo\httpGet(), ImageHistoryList\imageHistoryLine(), Block\initFromRow(), Language\internalUserTimeAndDate(), User\isEmailConfirmationPending(), SqlBagOStuff\isExpired(), RecentChange\isInRCLifespan(), MediaWiki\Auth\TemporaryPasswordPrimaryAuthenticationProvider\isTimestampValid(), User\loadDefaults(), ChangesFeed\loadFromCache(), LocalFile\loadFromCache(), User\loadFromCache(), MessageCache\loadFromDB(), WikiPage\loadFromRow(), RecentChange\loadFromRow(), User\loadFromRow(), SpecialUndelete\loadRequest(), GenerateSitemap\main(), FormatMetadata\makeFormattedData(), MediaWiki\Session\Token\match(), SpecialBlock\maybeAlterFormDefaults(), User\newTouchedTimestamp(), OutputPage\output(), InfoAction\pageCounts(), ApiStashEdit\parseAndStash(), SpecialBlock\parseExpiryInput(), TableCleanup\progress(), ImageBuilder\progress(), ApiMainTest\provideCheckConditionalRequestHeaders(), MediaWiki\Auth\TemporaryPasswordPrimaryAuthenticationProvider\providerAllowsAuthenticationDataChange(), LocalFile\publishTo(), RebuildRecentchanges\rebuildRecentChangesTablePass1(), QueryPage\recache(), LocalFile\recordUpload2(), CategoryMembershipChangeJob\run(), ApiQueryProtectedTitles\run(), ApiQueryCategories\run(), ApiQueryWatchlistRaw\run(), ApiQueryDuplicateFiles\run(), ApiQuerySearch\run(), ApiQueryQueryPage\run(), ApiQueryCategoryMembers\run(), RefreshLinksJob\runForTitle(), ChangesFeed\saveToCache(), ApiMain\sendCacheHeaders(), ResourceLoader\sendResponseHeaders(), OutputPage\setLastModified(), WikiRevision\setTimestamp(), WikiPage\setTimestamp(), ApiMain\setupExecuteAction(), TextPassDumper\showReport(), BackupDumper\showReport(), UpdateLogging\sync(), EditPageTest\testAutoMerge(), MediaWiki\Auth\AbstractPasswordPrimaryAuthenticationProviderTest\testGetNewPasswordExpiry(), WfTimestampTest\testHttpDate(), WfTimestampTest\testNormalTimestamps(), WfTimestampTest\testOldTimestamps(), JobQueueTest\testRootDeduplication(), MediaWiki\Auth\LocalPasswordPrimaryAuthenticationProviderTest\testSetPasswordResetFlag(), WfTimestampTest\testTimestampParameter(), TitlePermissionTest\testUserBlock(), Language\time(), Language\timeanddate(), IPTC\timeHelper(), DatabaseOracle\timestamp(), MediaWiki\Session\Token\toString(), ApiUpload\transformWarnings(), ResourceLoader\tryRespondFromFileCache(), RecentChangesUpdateJob\updateActiveUsers(), WikiPage\updateIfNewerOn(), Block\updateTimestamp(), ApiBase\validateTimestamp(), EditPage\wasDeletedSinceLastEdit(), wfStreamThumb(), and XmlDumpWriter\writeTimestamp().

wfTimestampNow ( )

Convenience function; returns MediaWiki timestamp for the present time.

Returns: string

Definition at line 2036 of file GlobalFunctions.php.

Referenced by LinksDeletionUpdate\__construct(), CategoryMembershipChange\__construct(), Revision\__construct(), EditPageTest\assertEdit(), User\confirmEmail(), Preferences\datetimePreferences(), Block\doAutoblock(), WikiPage\doCreate(), SpecialWatchlist\doHeader(), WikiPage\doModify(), PoolWorkArticleView\doWork(), ApiProtect\execute(), ApiEditPage\execute(), SpecialExport\execute(), MigrateFileRepoLayout\execute(), ResetUserEmail\execute(), ImportTextFiles\execute(), UpdateSearchIndex\execute(), GenerateSitemap\execute(), PPFuzzTest\execute(), LogFormatterTestCase\expandDatabaseRow(), SqlBagOStuff\expireAll(), FormatMetadata\fetchExtendedMetadata(), Title\getCascadeProtectionSources(), Preferences\getDateOptions(), Parser\getRevisionTimestamp(), ParserOptions\getTimestamp(), ManualLogEntry\getTimestamp(), EditPage\importFormData(), ManualLogEntry\insert(), HTMLCacheUpdateJob\invalidateTitles(), MessageCache\isCacheExpired(), Block\isExpired(), Title\loadRestrictions(), Title\loadRestrictionsFromRows(), Job\newRootJobParams(), SpecialLockdb\onSubmit(), SpecialRecentChanges\optionsPanel(), RSSFeed\outHeader(), AtomFeed\outHeader(), WikiPage\prepareContentForEdit(), SpecialBlock\processForm(), WikiImporter\processRevision(), ProtectionForm\save(), ParserCache\save(), LogPage\saveContent(), HTMLFileCache\saveToFileCache(), AjaxResponse\storeInMemcached(), EditPageTest\testAutoMerge(), BlockTest\testBlockedUserCanNotCreateAccount(), EditPageTest\testCheckDirectEditingDisallowed_forNonTextContent(), BlockTest\testCrappyCrossWikiBlocks(), MessageTest\testExpiryParams(), and LanguageTest\testSprintfDateNoTtlIfNotNeeded().

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	$ts

Returns: string

Definition at line 2023 of file GlobalFunctions.php.

Referenced by Autopromote\checkCondition(), ApiQueryUsers\execute(), MediaWiki\Auth\LocalPasswordPrimaryAuthenticationProvider\getPasswordResetData(), Job\getQueuedTimestamp(), Job\getReleaseTimestamp(), JobSpecification\getReleaseTimestamp(), MediaWiki\Auth\TemporaryPasswordPrimaryAuthenticationProvider\isTimestampValid(), ApiStashEdit\lastEditTime(), WikiPage\loadFromRow(), and User\loadFromRow().

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 3331 of file GlobalFunctions.php.

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

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 3473 of file GlobalFunctions.php.

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

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 369 of file GlobalFunctions.php.

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

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 756 of file GlobalFunctions.php.

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

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 801 of file GlobalFunctions.php.

Referenced by Parser\doMagicLinks(), and Language\markNoConversion().

wfUseMW ( $req_ver )

This function works like "use VERSION" in Perl except it checks the version of MediaWiki, the program will die with a backtrace if the current version of MediaWiki is less than the version provided.

This is useful for extensions which due to their nature are not kept in sync with releases

Note: Due to the behavior of PHP's version_compare() which is used in this function, if you want to allow the 'wmf' development versions add a 'c' (or any single letter other than 'a', 'b' or 'p') as a post-fix to your targeted version number. For example if you wanted to allow any variation of 1.22 use `wfUseMW( '1.22c' )`. Using an 'a' or 'b' instead of 'c' will not result in the same comparison due to the internal logic of version_compare().

See also: perldoc -f use

Deprecated:

since 1.26, use the "requires' property of extension.json

Parameters

string | int | float $req_ver The version to check, can be a string, an integer, or a float

Exceptions

MWException

Definition at line 2791 of file GlobalFunctions.php.

wfUsePHP ( $req_ver )

This function works like "use VERSION" in Perl, the program will die with a backtrace if the current version of PHP is less than the version provided.

This is useful for extensions which due to their nature are not kept in sync with releases, and might depend on other versions of PHP than the main code

Note: PHP might die due to parsing errors in some cases before it ever manages to call this function, such is life

See also: perldoc -f use

Parameters

string | int | float $req_ver The version to check, can be a string, an integer, or a float

Exceptions

MWException

Definition at line 2761 of file GlobalFunctions.php.

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 1758 of file GlobalFunctions.php.

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: 1 day (cli), ~10 seconds (web)

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

Deprecated:: since 1.27 Use LBFactory::waitForReplication

Definition at line 3227 of file GlobalFunctions.php.

Referenced by NamespaceConflictChecker\checkLinkTable(), CompressOld\compressWithConcat(), RefreshLinks\deleteLinksFromNonexistent(), RefreshLinks\dfnCheckInterval(), PopulateRecentChangesSource\doDBUpdates(), PopulateBacklinkNamespace\doDBUpdates(), PopulateFilearchiveSha1\doDBUpdates(), PopulateParentId\doDBUpdates(), FixExtLinksProtocolRelative\doDBUpdates(), PopulateLogUsertext\doDBUpdates(), PopulateLogSearch\doDBUpdates(), PopulateImageSha1\doDBUpdates(), PopulateRevisionLength\doLenUpdates(), RefreshLinks\doRefreshLinks(), PopulateRevisionSha1\doSha1LegacyUpdates(), PopulateRevisionSha1\doSha1Updates(), UpdateSpecialPages\doSpecialPageCacheUpdates(), TidyUpBug37714\execute(), RemoveInvalidEmails\execute(), DeleteSelfExternals\execute(), FixUserRegistration\execute(), DeleteDefaultMessages\execute(), InitEditCount\execute(), MakeTestEdits\execute(), MigrateUserGroup\execute(), BatchedQueryRunner\execute(), ConvertUserOptions\execute(), CleanupRemovedModules\execute(), UpdateRestrictions\execute(), UpdateSpecialPages\execute(), UploadStashCleanup\execute(), MwSql\execute(), DeleteBatch\execute(), ResetUserTokens\execute(), MoveBatch\execute(), UpdateCollation\execute(), PopulateCategory\execute(), UpdateMediaWiki\execute(), RefreshImageMetadata\execute(), DeleteEqualMessages\execute(), FixDefaultJsonContentPages\handleRow(), moveToExternal(), resolveStubs(), BackupReader\showReport(), UpdateLogging\sync(), TrackBlobs\trackOrphanText(), TrackBlobs\trackRevisions(), PopulateContentModel\updatePageRows(), and FixBug20757\waitForSlaves().

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 1140 of file GlobalFunctions.php.

Referenced by FakeDatabase\__construct(), DatabaseTestHelper\__construct(), FakeDatabaseMysqlBase\__construct(), TextContent\__construct(), Exif\__construct(), Action\__construct(), MediaWiki\Tidy\RaggettExternal\cleanWrapped(), MediaWiki\Tidy\RaggettInternalPHP\cleanWrapped(), ForeignAPIRepo\fileExistsBatch(), Http\get(), SpecialPageFactory\getAliasList(), CacheHelper\getCachedValue(), WikiPage\getContentModel(), Action\getContext(), ParserCache\getKey(), SpecialPageFactory\getLocalNameFor(), Language\getMagic(), MediaWiki\initializeArticle(), Linker\link(), Linker\makeBrokenImageLinkObj(), BacklinkJobUtils\partitionBacklinkJob(), Autopromote\recCheckCondition(), EditPage\showEditForm(), and DifferenceEngine\textDiff().

wfWikiID ( )

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

Returns: string

Definition at line 3024 of file GlobalFunctions.php.

Referenced by FSRepo\__construct(), ApiMain\__construct(), MediaWiki\Logger\Monolog\WikiProcessor\__invoke(), ApiQuerySiteinfo\appendGeneralInfo(), UserDupes\checkDupes(), JobRunner\commitMasterChanges(), FileBackendGroup\config(), ParserTestRunner\createRepoGroup(), WikiPage\doDeleteUpdates(), WikiPage\doEditUpdates(), MysqlUpdater\doTemplatelinksUpdate(), DeleteRevision\execute(), InitEditCount\execute(), AttachLatest\execute(), CopyJobQueue\execute(), SyncFileBackend\execute(), CreateAndPromote\execute(), UpdateSearchIndex\execute(), UpdateMediaWiki\execute(), GenerateSitemap\execute(), UserrightsPage\fetchUser(), MediaWiki\Logger\LegacyLogger\formatAsWfDebugLog(), MediaWiki\Logger\LegacyLogger\formatAsWfLogDBError(), MediaWiki\Interwiki\ClassicInterwikiLookup\getAllPrefixesCached(), JobQueueGroup\getCachedConfigVar(), User\getCacheKey(), SiteConfiguration\getConfig(), ObjectCache\getDefaultKeyspace(), MediaWiki\Interwiki\ClassicInterwikiLookup\getInterwikiCacheEntry(), MachineReadableRCFeedFormatter\getLine(), FileBackendDBRepoWrapperTest\getMocks(), User\getNewMessageLinks(), User\getNewMessageRevisionId(), Skin\getNewtalks(), Profiler\getProfileID(), Revision\getTitle(), Title\invalidateCache(), LocalIdLookup\isAttached(), ApiMain\logRequest(), RecompressTracked\logToFile(), UserMailer\makeMsgId(), EnqueueJob\newFromLocalJobs(), JobQueueMemoryTest\newJobQueue(), LBFactoryTest\newLBFactoryMulti(), TextPassDumper\openSpawn(), JobQueue\pop(), ClassicInterwikiLookupTest\populateHash(), InterwikiTest\populateHash(), TableCleanup\progress(), RecentChangesUpdateJob\purgeExpiredRows(), RefreshLinksJob\run(), JobRunner\run(), MigrateFileRepoLayoutTest\setUp(), LocalFileTest\setUp(), StoreBatchTest\setUp(), MediaWikiMediaTestCase\setUp(), JobQueueTest\setUp(), UploadFromUrlTestSuite\setUp(), FileBackendTest\setUp(), TextPassDumper\showReport(), BackupDumper\showReport(), LockManagerGroup\singleton(), JobQueueGroup\singleton(), RecompressTracked\startReplicaProcs(), ExternalStoreMwstore\store(), FileBackendTest\testAsyncWrites(), FileTest\testGenerateBucketsIfNeeded(), ResourceLoaderWikiModuleTest\testGetPreloadedTitleInfo(), FileTest\testGetThumbnailSource(), JobQueueTest\testGetWiki(), LocalIdLookupTest\testIsAttached(), FileBackendTest\testReadAffinity(), FileBackendTest\testSanitizeOpHeaders(), and RecentChangesUpdateJob\updateActiveUsers().