View source for Help:Magic words

{{short description|Special markup for MediaWiki}}
{{redirect|WP:MAGIC|WikiProject Magic|Wikipedia:WikiProject Magic}}
{{redirect|H:MW|the MediaWiki namespace|Help:MediaWiki namespace|information about the entire MediaWiki software application|MediaWiki}}
{{for|an introduction|Help:Magic words for beginners}}
{{Wikipedia how-to|H:MW|WP:MAGIC|WP:MAGICWORDS}}

'''Magic words''' (including '''parser functions''', '''variables''', and '''behavior switches''') are features of [[Help:Wiki markup|wiki markup]] that give instructions to Wikipedia's underlying [[MediaWiki]] software. For example, magic words can suppress or position the table of contents, disable indexing by external search engines, and produce output dynamically based on the current page or on user-defined conditional logic. Some of these features are especially useful for [[WP:Templates|templates]].

This page is a quick reference for magic words. For more information, refer to the main MediaWiki documentation:
* [[mw:Help:Magic words]]: All standard magic words, including the "standard" parser functions.
* [[mw:Help:Extension:ParserFunctions]]: Additional parser functions, including conditional expressions.

== General information ==
In general, there are three types of magic words.
# '''[[#Behavior switches|Behavior switches]]''': often appear in double underscores, all uppercase, e.g., <code>__NOTOC<nowiki/>__</code>. They will change the behavior of a page, rather than return a value.
# '''[[#Parser functions|Parser functions]]''': all in lowercase. A parser function will be followed by colon and pipe-separated parameters, e.g., <code><nowiki>{{#ifexpr:Y|Yes|No}}</nowiki></code>, wrapped in double braces. They will take a value and return a value.
# '''[[#Variables|Variables]]''': these are all uppercase, e.g., {{tld|PAGENAME}}. A variable will be wrapped in double braces and will return a value in its place.

The software generally interprets magic words in the following way:
* Magic words are [[case sensitive]].
* [[Whitespace character|White space]] is generously allowed for readability. It will be stripped from the start and end of their keywords and parameters (as is also done in template calls using named parameters).
* They can be [[WP:Transclusion|transcluded]], even variables "about the current page". This is ensured by the parsing order.
* Instead of magically transforming into HTML instructions, {{tag|[[help:wikitext#Nowiki|nowiki]]|o}} tags remove this magic so a magic word can itself be displayed (documented), e.g. <code><nowiki><nowiki>{{#magic:}}</nowiki></nowiki></code>or <code><nowiki>{{#magic:<nowiki/>}}</nowiki></code>.

Magic words compared to templates:
* As with templates, magic words can be [[help:transclusion|transcluded]] and [[Help:substitution|substituted]].
* The names of magic words are purposely chosen to be unlike the names of templates, and vice versa. Many parser function names will begin with a <code>#</code>([[Hash (character)|pound or hash]]), but template names [[wp:NCHASHTAG | will not start with a <code>#</code>]], and probably not end in a <code>:</code>(colon), or be all-uppercase.
* The first parameter's syntax differs. In <code>{{#magic: <nowiki/>p1 | p2 | p3}}</code>, the name is <code>#magic</code>and it is followed by an unspaced <code>:</code>and a required input parameter, <code>p1</code>. With a template, <code>p1</code>is optional and it is preceded by a <code>|</code>(pipe) instead of a <code>:</code>, e.g. <code>{{template<nowiki/>|p1}}</code>.

Most magic words can be used in any needed locations on a page; see [[MOS:ORDER]] for guidance on where to place magic words that are behavior switches.

== Behavior switches ==
{{further|mw:Help:Magic words#Behavior switches}}
{| class="wikitable plainrowheaders"
! scope="col" | Switch
! scope="col" | Description
|-
! scope="row" id="TOC" | <kbd><nowiki>__TOC__</nowiki></kbd>
| Places the page's [[Help:Table of contents|table of contents (TOC)]] at the word's position. This magic word does not work in skins that present the table of contents outside the article content e.g. the default Vector 2022 skin. 
|-
! scope="row" id="FORCETOC" | <kbd><nowiki>__FORCETOC__</nowiki></kbd>
| Forces the TOC to appear in its default position, even when there are fewer than four headings. Can be used anywhere on a page. This magic word does not work in skins that present the table of contents outside the article content e.g. the default Vector 2022 skin.
|-
! scope="row" id="NOTOC" | <kbd><nowiki>__NOTOC__</nowiki></kbd>
| Suppresses the appearance of the page's TOC. Can be used anywhere on a page.
|-
! scope="row" id="NOEDITSECTION" | <kbd><nowiki>__NOEDITSECTION__</nowiki></kbd>
| Hides the "edit" links normally beside ''all'' headings on the page. To hide the edit link beside a ''particular'' heading, specify the heading using e.g. an [[HTML element|HTML tag]] such as {{tag|h2|content=''heading''}} rather than with the usual wiki equals-signs syntax (e.g. {{nowrap|1=<kbd>== ''heading'' ==</kbd>}}{{thinsp}}).
|-
! scope="row" id="ARCHIVEDTALK" | <kbd><nowiki>__ARCHIVEDTALK__</nowiki></kbd>
| Hides the [[:mw:Talk_pages_project/Replying|"Reply" button]]
|-
! scope="row" id="NEWSECTIONLINK" | <kbd><nowiki>__NEWSECTIONLINK__</nowiki></kbd>
| On non-talk pages, adds a "{{int:vector-action-addsection}}" link as a means to add a new section to the page.
|-
! scope="row" id="NONEWSECTIONLINK" | <kbd><nowiki>__NONEWSECTIONLINK__</nowiki></kbd>
| Removes the "{{int:vector-action-addsection}}" link (the add-new-section link) on talk pages.
|-
! scope="row" id="NOGALLERY" | <kbd><nowiki>__NOGALLERY__</nowiki></kbd>
| Replaces thumbnails on a category page with normal links.
|-
! scope="row" id="HIDDENCAT" | <kbd><nowiki>__HIDDENCAT__</nowiki></kbd>
| Makes a category [[WP:HIDDENCAT|hidden]] when included on that category's page.
|-
! scope="row" id="INDEX" | <kbd><nowiki>__INDEX__</nowiki></kbd>
| Instructs [[Web search engine|search engine]]s to index the page.
|-
! scope="row" id="NOINDEX" | <kbd><nowiki>__NOINDEX__</nowiki></kbd>
| Instructs search engines not to index the page. See [[Wikipedia:Controlling search engine indexing]].
|-
! scope="row" id="STATICREDIRECT" | <kbd><nowiki>__STATICREDIRECT__</nowiki></kbd>
| Prevents the link on a [[Help:Redirect|redirection]] page from being updated automatically when the page to which it redirects is moved (and "Update any redirects that point to the original title" is selected).
|-
! scope="row" id="DISAMBIG" | <kbd><nowiki>__DISAMBIG__</nowiki></kbd>
| Marks a page as a [[WP:DAB|disambiguation page]], adds it to [[Special:DisambiguationPages]] and places inward links in [[Special:DisambiguationPageLinks]]. (See [[mw:Extension:Disambiguator]].)
|-
! scope="row" id="DISPLAYTITLE" | <kbd>{<nowiki/>{DISPLAYTITLE:''title''}}</kbd>
| Used to amend the [[WP:DISPLAYTITLE|displayed form]] of the page's title.
|-
! scope="row" id="DEFAULTSORT" | <kbd>{<nowiki/>{DEFAULTSORT:''sortkey''}}</kbd>
| Sets the default [[Help:Category#Sorting category pages|key]] (the index) under which the page is categorised. Functionality is documented at {{section link|Help:Category#Default sort key}}, and guidelines are at {{section link|Wikipedia:Categorization#Sort keys}}.
|-
! scope="row" id="NOEXTERNALLANGLINKS" | <kbd>[[mw:Wikibase/Installation/Advanced configuration#noexternallanglinks|{<nowiki/>{NOEXTERNALLANGLINKS}}]]</kbd>
|| (equivalent to {<nowiki/>{NOEXTERNALLANGLINKS:*}}{{thinsp}}) Suppresses the automated inclusion of [[Wikidata:Help:Linking Wikipedia pages|Wikidata]] [[Help:Interlanguage links|interlanguage links]] on the lefthand side of the page. Links to particular rather than all languages may be suppressed by using {<nowiki/>{NOEXTERNALLANGLINKS:''list''}}, where ''list'' a [[Vertical bar|pipe]]-[[Delimiter|delimited]] list of [[language code]]s (e.g. {<nowiki/>{NOEXTERNALLANGLINKS:fr{{pipe}}es{{pipe}}ja}} to suppress the French ("fr"), Spanish ("es") and Japanese ("ja") interlanguage links).
|}

== Variables ==
{{Shortcut|WP:VAR}}
{{Further|mw:Help:Magic words#Variables|Wikipedia:Page name#sub}}
{{Redirect|WP:VAR|policies and guidelines with WP:*VAR shortcuts, mostly about style matters|WP:VARS}}
{{Redirect|WP:PAGENAME|the article naming policy|Wikipedia:Article titles}}

{| class="wikitable plainrowheaders"
! scope="col" | Page name variable
! scope="col" | Output
! scope="col" | Description
|-
! scope="row" id="FULLPAGENAME" | <kbd>{<nowiki/>{FULLPAGENAME}}</kbd>
| {{FULLPAGENAME}}
| Canonical [[Help:page name|page name]]. ''Title line''. Title unless letter-case is altered with {{tld|DISPLAYTITLE}}.{{efn|If <kbd><nowiki>{{FULLPAGENAME}}</nowiki></kbd> is used in a page that is [[WP:transclusion|transcluded]] from another page, it will return the name of the target. {{ml|TEMPLATENAME|main}} can be used to determine the name of the template itself.}}
|-
! scope="row" id="PAGENAME" | <kbd>{<nowiki/>{PAGENAME}}</kbd>
| {{PAGENAME}}
| Title line excluding [[Wikipedia:Namespace|namespace]].
|-
! scope="row" id="BASEPAGENAME" | <kbd>{<nowiki/>{BASEPAGENAME}}</kbd>
| {{BASEPAGENAME}}
| Title of parent page, excluding namespace.
|-
! scope="row" id="ROOTPAGENAME" | <kbd>{<nowiki/>{ROOTPAGENAME}}</kbd>
| {{ROOTPAGENAME}}
| Title of topmost parent (before all subpages), excluding namespace.
|-
! scope="row" | <kbd>[[wp:pagename#sub|{<nowiki/>{SUBPAGENAME}}]]</kbd>
| {{SUBPAGENAME}}
| On a subpage, rightmost portion of ''current'' title; higher subpagenames show as [[Breadcrumb navigation|backlinks]].
|-
! scope="row" id="ARTICLEPAGENAME" | <kbd>{<nowiki/>{ARTICLEPAGENAME}}</kbd>
| {{ARTICLEPAGENAME}}
| rowspan="2" | Title of the subject page associated with the current page. These are useful on talk pages (but see note about Category talk pages).
|-
! scope="row" id="SUBJECTPAGENAME" | <kbd>{<nowiki/>{SUBJECTPAGENAME}}</kbd>
| {{SUBJECTPAGENAME}}
|-
! scope="row" id="TALKPAGENAME" | <kbd>{<nowiki/>{TALKPAGENAME}}</kbd>
| {{TALKPAGENAME}}
| Title of the talk page associated with the current page. Useful on subject pages.
|-
! scope="row" id="NAMESPACENUMBER" | <kbd>{<nowiki/>{NAMESPACENUMBER}}</kbd>
| {{NAMESPACENUMBER:{{FULLPAGENAME}}}}
| Number of the current page's namespace.
|-
! scope="row" id="NAMESPACE" | <kbd>{<nowiki/>{NAMESPACE}}</kbd>
| {{NAMESPACE}}
| Namespace of the title.
|-
! scope="row" id="ARTICLESPACE" | <kbd>{<nowiki/>{ARTICLESPACE}}</kbd>
| {{ARTICLESPACE}}
| rowspan="2" | On a talk page, the namespace part of the title of the associated subject page.
|-
! scope="row" id="SUBJECTSPACE" | <kbd>{<nowiki/>{SUBJECTSPACE}}</kbd>
| {{SUBJECTSPACE}}
|-
! scope="row" id="TALKSPACE" | <kbd>{<nowiki/>{TALKSPACE}}</kbd>
| {{TALKSPACE}}
| Namespace of the talk page associated with the current page.
|-
! scope="row" id="FULLPAGENAMEE" | {{longitem|style=line-height:1.5em|<kbd>{<nowiki/>{FULLPAGENAMEE}<nowiki/>}</kbd>,<br /><kbd>{<nowiki/>{PAGENAMEE}<nowiki/>}</kbd>,<br />{{pad|0.4em}}(etc.)}}
| {{longitem|style=line-height:1.5em|{{FULLPAGENAMEE}},<br/>{{PAGENAMEE}},<br/>(etc.)}}
| Adding an E to the end of the above variables, renders the above encoded for use in MediaWiki [[URL]]s (i.e. with underscores replacing spaces).
|-
! scope="row" id="SHORTDESC" | <kbd>{<nowiki/>{SHORTDESC}}</kbd>
| <!-- do not invoke this magic word here: shows nothing and places page in error-tracking category -->
| Only works on the English Wikipedia, where it displays a short description below the article title on mobile platforms. {{crossref|printworthy=y|See [[Wikipedia:Short description]].}}
|}

{{a note}} The magic words above can also take a parameter, in order to parse values on a page other than the current page. A colon (<kbd>:</kbd>) is used to pass the parameter, rather than a pipe (<kbd>{{!}}</kbd>) that is used in templates, like <kbd><nowiki>{{MAGICWORD:value}}</nowiki></kbd>. For example, <kbd><nowiki>{{TALKPAGENAME:Wikipedia:MOS}}</nowiki></kbd> returns <samp><nowiki>Wikipedia talk:MOS</nowiki></samp> on any page.

{{respond|orangeexclamation|Caution:}} Attempting to use (some) page name variables to create a wikilink to an image page, category page or interlanguage link will produce a different effect: this will respectively place the image on the page, add the page to the category, or create an interlanguage link at the edge of the page. To override this normal behavior, [[Help:Link|prefix the variable with a colon]] (<code>:</code>); for example <kbd><nowiki>[[:{{FULLPAGENAME}}]]</nowiki></kbd>.

{{crossref|printworthy=y|For more details on parser functions that relate to page names and namespaces, see: {{section link|meta:Help:Page name#Variables and parser functions}}.}}
{| class="wikitable plainrowheaders"
! scope="col" | Site variable
! scope="col" | Output
! scope="col" | Description
|-
! scope="row" id="SITENAME" | <kbd>{<nowiki/>{SITENAME}}</kbd>
| {{SITENAME}}
| Site name ([[mw:Manual:$wgSitename|$wgSitename]]).
|-
! scope="row" id="SERVER" | <kbd>{<nowiki/>{SERVER}}</kbd>
| {{SERVER}}
| Domain [[URL]] ([[mw:Manual:$wgServer|$wgServer]]).
|-
! scope="row" id="SERVERNAME" | <kbd>{<nowiki/>{SERVERNAME}}</kbd>
| {{SERVERNAME}}
| Subdomain and domain name.
|-
! scope="row" id="ARTICLEPATH" | <kbd>{<nowiki/>{ARTICLEPATH}}</kbd>
| {{ARTICLEPATH}}
| Relative article path ([[mw:Manual:$wgArticlePath|$wgArticlePath]]).
|-
! scope="row" id="SCRIPTPATH" | <kbd>{<nowiki/>{SCRIPTPATH}}</kbd>
| {{SCRIPTPATH}}
| Relative script path ([[mw:Manual:$wgScriptPath|$wgScriptPath]]).
|-
! scope="row" id="STYLEPATH" | <kbd>{<nowiki/>{STYLEPATH}}</kbd>
| {{STYLEPATH}}
| Relative style path ([[mw:Manual:$wgStylePath|$wgStylePath]]).
|-
! scope="row" id="CURRENTVERSION" | <kbd>{<nowiki/>{CURRENTVERSION}}</kbd>
| {{CURRENTVERSION}}
| Returns current MediaWiki version.
|}

=== Other variables by type ===
{| class="wikitable plainrowheaders" id="Current_date_and_time"
|+ Current date and time
! scope="col" colspan="2" | Universal time
! scope="col" colspan="2" | Local-website time
|-
! scope="col" | Variable
! scope="col" | Output
! scope="col" | Variable
! scope="col" | Output
|-
! scope="row" id="CURRENTYEAR" | <kbd>{<nowiki/>{CURRENTYEAR}}</kbd>
| {{CURRENTYEAR}}
! scope="row" id="LOCALYEAR" | <kbd>{<nowiki/>{LOCALYEAR}}</kbd>
| {{LOCALYEAR}}
|-
! scope="row" id="CURRENTMONTH" | <kbd>{<nowiki/>{CURRENTMONTH}}</kbd>
| {{CURRENTMONTH}}
! scope="row" id="LOCALMONTH" | <kbd>{<nowiki/>{LOCALMONTH}}</kbd>
| {{LOCALMONTH}}
|-
! scope="row" id="CURRENTMONTHNAME" | <kbd>{<nowiki/>{CURRENTMONTHNAME}}</kbd>
| {{CURRENTMONTHNAME}}
! scope="row" id="LOCALMONTHNAME" | <kbd>{<nowiki/>{LOCALMONTHNAME}}</kbd>
| {{LOCALMONTHNAME}}
|-
! scope="row" id="CURRENTMONTHABBREV" | <kbd>{<nowiki/>{CURRENTMONTHABBREV}}</kbd>
| {{CURRENTMONTHABBREV}}
! scope="row" id="LOCALMONTHABBREV" | <kbd>{<nowiki/>{LOCALMONTHABBREV}}</kbd>
| {{LOCALMONTHABBREV}}
|-
! scope="row" id="CURRENTDAY" | <kbd>{<nowiki/>{CURRENTDAY}}</kbd>{{efn|<kbd><nowiki>{{CURRENTDAY}}</nowiki></kbd>, <kbd><nowiki>{{LOCALDAY}}</nowiki></kbd> and <kbd><nowiki>{{REVISIONDAY}}</nowiki></kbd> return the day (e.g. "<samp>6</samp>"), whilst <kbd><nowiki>{{CURRENTDAY2}}</nowiki></kbd>, <kbd><nowiki>{{LOCALDAY2}}</nowiki></kbd> and <kbd><nowiki>{{REVISIONDAY2}}</nowiki></kbd> return the day with zero-padding (e.g. "<samp>06</samp>"). For all two-digit days (i.e. 10 to 31), these are the same.|name=daynote}}
| {{CURRENTDAY}}
! scope="row" id="LOCALDAY" | <kbd>{<nowiki/>{LOCALDAY}}</kbd>{{efn|name=daynote}}
| {{LOCALDAY}}
|-
! scope="row" id="CURRENTDAY2" | <kbd>{<nowiki/>{CURRENTDAY2}}</kbd>{{efn|name=daynote}}
| {{CURRENTDAY2}}
! scope="row" id="LOCALDAY2" | <kbd>{<nowiki/>{LOCALDAY2}}</kbd>{{efn|name=daynote}}
| {{LOCALDAY2}}
|-
! scope="row" id="CURRENTDOW" | <kbd>{<nowiki/>{CURRENTDOW}}</kbd>
| {{CURRENTDOW}}
! scope="row" id="LOCALDOW" | <kbd>{<nowiki/>{LOCALDOW}}</kbd>
| {{LOCALDOW}}
|-
! scope="row" id="CURRENTDAYNAME" | <kbd>{<nowiki/>{CURRENTDAYNAME}}</kbd>
| {{CURRENTDAYNAME}}
! scope="row" id="LOCALDAYNAME" | <kbd>{<nowiki/>{LOCALDAYNAME}}</kbd>
| {{LOCALDAYNAME}}
|-
! scope="row" id="CURRENTTIME" | <kbd>{<nowiki/>{CURRENTTIME}}</kbd>
| {{CURRENTTIME}}
! scope="row" id="LOCALTIME" | <kbd>{<nowiki/>{LOCALTIME}}</kbd>
| {{LOCALTIME}}
|-
! scope="row" id="CURRENTHOUR" | <kbd>{<nowiki/>{CURRENTHOUR}}</kbd>
| {{CURRENTHOUR}}
! scope="row" id="LOCALHOUR" | <kbd>{<nowiki/>{LOCALHOUR}}</kbd>
| {{LOCALHOUR}}
|-
! scope="row" id="CURRENTWEEK" | <kbd>{<nowiki/>{CURRENTWEEK}}</kbd>
| {{CURRENTWEEK}}
! scope="row" id="LOCALWEEK" | <kbd>{<nowiki/>{LOCALWEEK}}</kbd>
| {{LOCALWEEK}}
|-
! scope="row" id="CURRENTTIMESTAMP" | <kbd>{<nowiki/>{CURRENTTIMESTAMP}}</kbd>{{efn|name=formatstamp}}
| {{CURRENTTIMESTAMP}}
! scope="row" id="LOCALTIMESTAMP" | <kbd>{<nowiki/>{LOCALTIMESTAMP}}</kbd>{{efn|name=formatstamp}}
| {{LOCALTIMESTAMP}}
|}

{| class="wikitable plainrowheaders" id="Page_revision_data"
|+ Page revision data
! scope="col" | Variable
! scope="col" | Output
|-
! scope="row" id="REVISIONDAY" | <kbd>{<nowiki/>{REVISIONDAY}}</kbd>{{efn|name=daynote}}
| {{REVISIONDAY}}
|-
! scope="row" id="REVISIONDAY2" | <kbd>{<nowiki/>{REVISIONDAY2}}</kbd>{{efn|name=daynote}}
| {{REVISIONDAY2}}
|-
! scope="row" id="REVISIONMONTH" | <kbd>{<nowiki/>{REVISIONMONTH}}</kbd>
| {{REVISIONMONTH}}
|-
! scope="row" id="REVISIONYEAR" | <kbd>{<nowiki/>{REVISIONYEAR}}</kbd>
| {{REVISIONYEAR}}
|-
! scope="row" id="REVISIONTIMESTAMP" | <kbd>{<nowiki/>{REVISIONTIMESTAMP}}</kbd>{{efn|These timestamp outputs can be formatted with {{tl|Format revisiontimestamp}} (aka {{tl|FRTS}}). For example, <nowiki>{{</nowiki>[[Template:FRTS|FRTS]]<nowiki>|{{REVISIONTIMESTAMP}}}}</nowiki> turns "{{REVISIONTIMESTAMP}}" into "{{FRTS|{{REVISIONTIMESTAMP}}}}".|name=formatstamp}}
| {{REVISIONTIMESTAMP}}
|-
! scope="row" id="REVISIONUSER" | <kbd>{<nowiki/>{REVISIONUSER}}</kbd>{{efn|This shows the last user to edit the page. There is no way to show the user viewing the page with magic words due to technical restrictions.}}
| {{REVISIONUSER}}
|}

{| class="wikitable plainrowheaders"
|+ Wiki statistics
|-
! scope="row" id="NUMBEROFPAGES" | <kbd>{<nowiki/>{NUMBEROFPAGES}}</kbd>
| {{NUMBEROFPAGES}}
|-
! scope="row" id="NUMBEROFARTICLES" | <kbd>{<nowiki/>{NUMBEROFARTICLES}}</kbd>
| {{NUMBEROFARTICLES}}
|-
! scope="row" id="NUMBEROFFILES" | <kbd>{<nowiki/>{NUMBEROFFILES}}</kbd>
| {{NUMBEROFFILES}}
|-
! scope="row" id="NUMBEROFEDITS" | <kbd>{<nowiki/>{NUMBEROFEDITS}}</kbd>
| {{NUMBEROFEDITS}}
<!--disabled in MediaWiki (see talk page):
|-
! scope="row" id="NUMBEROFVIEWS | <kbd>{<nowiki/>{NUMBEROFVIEWS}}</kbd>
| {{NUMBEROFVIEWS}}
-->
|-
! scope="row" id="NUMBEROFUSERS" | <kbd>{<nowiki/>{NUMBEROFUSERS}}</kbd>
| {{NUMBEROFUSERS}}
|-
! scope="row" id="NUMBEROFADMINS" | <kbd>{<nowiki/>{NUMBEROFADMINS}}</kbd>
| {{NUMBEROFADMINS}}
|-
! scope="row" id="NUMBEROFACTIVEUSERS" | <kbd>{<nowiki/>{NUMBEROFACTIVEUSERS}}</kbd>
| {{NUMBEROFACTIVEUSERS}}
|}

== Parser functions ==
{{Shortcut|WP:PF|WP:PARSER}}
{{further|mw:Help:Magic words#Parser functions|mw:Help:Extension:ParserFunctions}}

=== Metadata ===
{| class="wikitable plainrowheaders"
! scope="col" | Function
! scope="col" | Description
|-
! scope="row" id="PAGEID" | <kbd>{<nowiki/>{PAGEID}}</kbd>
| Unique page identifier number (for example, this page's ID is <samp>{{PAGEID}}</samp>). 
|-
! scope="row" id="PAGESIZE" | <kbd>{<nowiki/>{PAGESIZE:''fullpagename''}}{{efn|name=expensive|This function is an [[WP:EXPENSIVE|expensive]] parser function.}}</kbd>
| Size of named page in bytes (for example, this page is <samp>{{PAGESIZE:{{FULLPAGENAME}}}}</samp> bytes).
|-
! scope="row" id="PROTECTIONLEVEL" | <kbd>{<nowiki/>{PROTECTIONLEVEL:''action''{{pipe}}''fullpagename''}}</kbd>
| [[Wikipedia:Protection policy|Protection level]] assigned to ''action'' ("edit", "move", etc.) on named page (this page's protection level for "edit" is <kbd>{{PROTECTIONLEVEL:edit|Help:Magic words}}</kbd>).
|-
! scope="row" id="PROTECTIONEXPIRY" | <kbd>{<nowiki/>{PROTECTIONEXPIRY:''action''{{pipe}}''fullpagename''}}</kbd>
| [[Wikipedia:Protection policy|Protection expiry]] assigned to ''action'' ("edit", "move", etc.) on named page (this page's protection expiry is <kbd>{{PROTECTIONEXPIRY:edit|Help:Magic words}}</kbd>).
|-
! scope="row" id="PENDINGCHANGELEVEL" | <kbd>{<nowiki/>{PENDINGCHANGELEVEL:''fullpagename''}}</kbd>
| Protection level for [[WP:PC|pending changes]] on the named page (this page, which doesn't have one, is<kbd>{{PENDINGCHANGELEVEL}}</kbd>). 
|-
! scope="row" id="PAGESINCATEGORY" | <kbd>{<nowiki/>{PAGESINCATEGORY:''categoryname''}}</kbd>
| Number of pages in the category named ''categoryname''. Each subcategory is counted as one item.
|-
! scope="row" id="NUMBERINGROUP" | <kbd>{<nowiki/>{NUMBERINGROUP:''groupname''}}</kbd>
| Number of users in the [[Wikipedia:User access levels|user group]] named ''groupname''.
|}
Page IDs can be associated with articles via wikilinks (i.e. <code>[[Special:Redirect/page/3235121]]</code>goes to this page).
To output numbers without comma [[Delimiter|separator]]s (for example, as "123456789" rather than "123,456,789"), append the parameter <kbd>|R</kbd>.

=== Formatting ===
{{further|mw:Help:Magic words#Formatting}}
{| class="wikitable plainrowheaders"
! scope="col" | Function
! scope="col" | Description
|-
! scope="row" id="lc" | <kbd>{<nowiki/>{lc:''string''}}</kbd>
| Converts all characters in ''string'' to lower case.
|-
! scope="row" id="lcfirst" | <kbd>{<nowiki/>{lcfirst:''string''}}</kbd>
| Converts first character of ''string'' to lower case.
|-
! scope="row" id="uc" | <kbd>{<nowiki/>{uc:''string''}}</kbd>
| Converts all characters in ''string'' to upper case.
|-
! scope="row" id="ucfirst" | <kbd>{<nowiki/>{ucfirst:''string''}}</kbd>
| Converts first character of ''string'' to upper case.
|-
! scope="row" id="formatnum" | <kbd>{<nowiki/>{formatnum:''unformatted_number''}}<br />{<nowiki/>{formatnum:''formatted_num'' {{pipe}}R}}</kbd>
| Adds comma separators to an ''unformatted_number'' (e.g. 123456789 becomes {{formatnum:123456789}}). To remove such formatting, use <kbd>{<nowiki/>{formatnum:''formatted_number''{{pipe}}R}}</kbd> (i.e. <kbd>{{braces|formatnum:7,654,321{{pipe}}R}}</kbd>, for example, produces {{formatnum:7,654,321|R}}).
|-
! scope="row" id="dateformat" | <kbd>{<nowiki/>{#dateformat:''date''{{pipe}}''format''}}<br />{<nowiki/>{#formatdate:''date''{{pipe}}''format''}}</kbd>
| Formats a date according to user preferences; a default can be given as an optional case-sensitive second parameter for users without date preference; can convert a date from an existing format to any of <code>dmy</code>, <code>mdy</code>, <code>ymd</code>, or <code>[[ISO 8601]]</code> formats, with the user's preference overriding the specified format.
|-
! scope="row" id="padleft" | <kbd>{<nowiki/>{padleft:''xyz''{{pipe}}''stringlength''}}<br />{<nowiki/>{padright:''xyz''{{pipe}}''stringlength''}}<br /><br />{<nowiki/>{padleft:''xyz''{{pipe}}''length''{{pipe}}''padstr''}}<br />{<nowiki/>{padright:''xyz''{{pipe}}''length''{{pipe}}''padstr''}}</kbd>
| Pad with zeroes '0' to the right or left, to fill the given length; an alternative padding string can be given as a third parameter; the repeated padding string (''padstr'') will be truncated if its length does not evenly divide the required number of characters.
|-
! scope="row" id="mwplural" | <kbd>{<nowiki/>{plural:''N''{{pipe}}''singular''{{pipe}}''plural''}}</kbd>
| Outputs ''singular'' if ''N'' is equal to 1, otherwise outputs ''plural''. See the [[mw:Help:Magic words#Localization|documentation at mediawiki.org]] for more details.
|-
! scope="row" id="mwtime" | <kbd>{<nowiki/>{#time:''format''{{pipe}}''object''}}</kbd><br /><kbd>{<nowiki/>{#timel:''format''{{pipe}}''object''}}<br /><br />{<nowiki/>{#time:d F Y{{pipe}}''date''{{pipe}}''langcode''}}<br /><br />{<nowiki/>{#timef:object{{pipe}}''format type''{{pipe}}''langcode''}}</kbd>
| Used to format dates and times, for ISO format, dots or English month names. <kbd>#timel</kbd> and <kbd>#timefl</kbd> are based on local time as defined for each wiki; for English Wikipedia, this is identical to <kbd>#time</kbd> and <kbd>#timef</kbd>.<br />The optional 3rd parameter is the output language code (French, German, Swedish: fr, de, sv, etc.). Example Finnish: <kbd><nowiki>{{#time:d F Y|June 30, 2016|fi}}</nowiki></kbd> shows: {{#time:d F Y|June 30, 2016|fi}} (June). ISO to German: <kbd><nowiki>{{#time:d. M Y|1987-10-31|de}}</nowiki></kbd> shows: {{#time:d. M Y|1987-10-31|de}}.<br />For format codes, see: [[mw:Help:Extension:ParserFunctions##time]]. Use the format <kbd><nowiki>{{#time: H:i, j F Y (e)|...}}</nowiki></kbd> to match the format used by timestamps in signatures.<br /><kbd>#timef</kbd> formats a date using a standard format for the selected language, see: [[mw:Help:Extension:ParserFunctions##timef]].
|-
! scope="row" id="gender" | <kbd>{<nowiki/>{gender:''user''{{pipe}}''m_out''{{pipe}}''f_out''{{pipe}}''u_out''}}</kbd>
| Outputs ''m_out'', ''f_out'' or ''u_out'' according to whether the gender specified in ''user''{{thinsp}}'s preferences is, respectively, male, female or unspecified. Other parameter permutations are available, see [[mw:Help:Magic words#gender]] and [[translatewiki:Special:MyLanguage/Gender|translatewiki:Gender]].
|-
! scope="row" id="mwtag" | <kbd>[[mw:Help:Magic words#Miscellaneous|{<nowiki/>{#tag:''tagname''{{pipe}}''content with magic''}}]]</kbd>
| Only way to [[eval]]uate magic words ''inside a tag'', in order to generate <code>&lt;''tagname''>''magic''&lt;/''tagname''></code>. Also handles tag attributes. Details at [[mw:Help:Magic words#tag]].
|}

=== Paths ===
{| class="wikitable plainrowheaders"
! scope="col" | Function
! scope="col" | Description
|-
! scope="row" id="localurl" | <kbd>{<nowiki/>{localurl:''fullpagename'' {{pipe}}''query''}}</kbd>
| Relative [[Path (computing)|path]] to page name. The ''query'' parameter is optional.
|-
! scope="row" id="fullurl" | <kbd>{<nowiki/>{fullurl:''fullpagename'' {{pipe}}''query''}}</kbd>
| Absolute path, without [[Application layer|protocol prefix]] (i.e. without "{{thinsp}}<nowiki>http:</nowiki>{{thinsp}}" etc.), to page name. The ''query'' parameter is optional.
|-
! scope="row" id="canonicalurl" | <kbd>{<nowiki/>{canonicalurl:''fullpagename'' {{pipe}}''query''}}</kbd>
| Absolute path, including protocol prefix, to page name. The ''query'' parameter is optional.
|-
! scope="row" id="filepath" | <kbd>{<nowiki/>{filepath:''filename''}}</kbd>
| Absolute path to the media file ''filename''.
|-
! scope="row" id="urlencode" | <kbd>{<nowiki/>{urlencode:''string''}}</kbd>
| [[WP:ENCODE|Encodes]] ''string'' for use in URL query strings; <kbd>{{braces|urlencode:test string}}</kbd>, for example, produces: {{urlencode:test string}}. To encode ''string'' for use in URL paths or MediaWiki page names, append, respectively, {{para||PATH}} or {{para||WIKI}} (to produce "{{urlencode:test string|PATH}}" or "{{urlencode:test string|WIKI}}").
|-
! scope="row" id="anchorencode" | <kbd>{<nowiki/>{anchorencode:''string''}}</kbd>
| Input encoded for use in MediaWiki URL [[Help:Anchor|section anchor]]s.
|-
! scope="row" id="ns" | <kbd>{<nowiki/>{ns:''n''}}</kbd>
| Returns the name of the [[wp:Namespace|namespace]] whose index is the number ''n''. For MediaWiki URLs, use <kbd>{<nowiki/>{nse:}}</kbd>.
|-
! scope="row" id="rel2abs" | <kbd>[[mw:Help:Extension:ParserFunctions##rel2abs|{<nowiki/>{#rel2abs:''path''}}]] </kbd>
| Converts a relative file path to an absolute path.
|-
! scope="row" id="titleparts" | <kbd>[[mw:Help:Extension:ParserFunctions##titleparts|{<nowiki/>{#titleparts:''fullpagename''{{pipe}}''number''{{pipe}}''first segment''}}]]</kbd>
| Splits the fullpagename (title) into that number of segments.
|}

===Conditional===
{{further|Help:Conditional expressions}}

{| class="wikitable plainrowheaders"
! scope="col" | Function
! scope="col" | Description
|-
! scope="row" id="expr" |<kbd>[[mw:Help:Extension:Parser functions##expr|{<nowiki/>{#expr:''expression''}}]] </kbd>
| Evaluates ''expression'' (see [[mw:Manual:Expr parser function syntax]]).
|-
! scope="row" id="if" | <kbd>[[mw:Help:Extension:Parser functions##if|{<nowiki/>{#if:''string'' {{pipe}}''result1'' {{pipe}}''result2''}}]] </kbd>
| Outputs ''result2'' if ''string'' is [[Empty string|empty]], otherwise outputs ''result1''.
|-
! scope="row" id="ifeq" | <kbd>[[mw:Help:Extension:Parser functions##ifeq|{<nowiki/>{#ifeq:''string1''{{pipe}}''string2'' {{pipe}}''result1'' {{pipe}}''result2''}}]] </kbd>
| Outputs ''result1'' if ''string1'' and ''string2'' are equal (alphabetically or numerically), otherwise outputs ''result2''.
|-
! scope="row" id="iferror" | <kbd>[[mw:Help:Extension:Parser functions##iferror|{<nowiki/>{#iferror:''test_string'' {{pipe}}''result1'' {{pipe}}''result2''}}]] </kbd>
| Outputs ''result1'' if ''test_string'' generates a parsing error, otherwise outputs ''result2''.
|-
! scope="row" id="ifexpr" | <kbd>[[mw:Help:Extension:Parser functions##ifexpr|{<nowiki/>{#ifexpr:''expression'' {{pipe}}''result1'' {{pipe}}''result2''}}]] </kbd>
| Outputs ''result1'' if ''expression''{{thinsp}} is true, otherwise outputs ''result2''.
|-
! scope="row" id="ifexist" | <kbd>[[mw:Help:Extension:Parser functions##ifexist|{<nowiki/>{#ifexist:''pagetitle'' {{pipe}}''result1'' {{pipe}}''result2''}}]]{{efn|name=expensive|This function is an [[WP:EXPENSIVE|expensive]] parser function.}}</kbd>
| Outputs ''result1'' if the page [<nowiki/>[''pagetitle'']] exists, otherwise outputs ''result2''. Note that underscores are needed for spaces in namespaces.
|-
! scope="row" style="white-space: nowrap;" | <kbd>[[mw:Help:Extension:Parser functions##switch|{<nowiki/>{#switch:''string'' {{pipe}}''c1''=''r1'' {{pipe}}''c2''=''r2'' ... {{pipe}}''default''}}]] </kbd>
| Outputs ''r1'' if ''string'' is ''c1'', ''r2'' if ''string'' is ''c2'', etc., otherwise outputs ''default'' (if provided).
|}

If, in these conditional functions, [[Empty string|empty]] unnamed parameters are to be parsed as empty rather than as text (i.e. as empty rather than as the text "{{{1}}}", "{{{2}}}", etc.), they will require trailing pipes (i.e. <kbd>{{(((}}1{{pipe}}{{)))}}</kbd>, <kbd>{{(((}}2{{pipe}}{{)))}}</kbd>, etc., rather than <kbd>{{(((}}1{{)))}}</kbd>, <kbd>{{(((}}2{{)))}}</kbd>, etc.).
* For the use of these functions in tables, see [[Help:Conditional tables]].

=== Other ===
{| class="wikitable plainrowheaders"
! scope="col" | Function
! scope="col" | Description
|-
! scope="row" id="babel" | <kbd>[[mw:Extension:Babel#Usage|{<nowiki/>{#babel:''code1''|''code2''|...}}]]</kbd>
| Render [[Wikipedia:Userboxes|userboxes]] telling your language skills. Improves upon {{tl|Babel}} (an alternative).
|-
! scope="row" id="categorytree" | <kbd>[[mw:Extension:CategoryTree|{<nowiki/>{#categorytree:''category''|...}}]]</kbd>
| List pages in a category, recursively.
|-
! scope="row" | <kbd>[[mw:Extension:GeoData#Parser function|{<nowiki/>{#coordinates:''arg1''|''arg2''|...}}]]</kbd>
| Save the [[Geographic coordinate system|GeoData coordinates]] of the subject to the page's database. Used in {{tl|coord}}.
|-
! scope="row" style="white-space: nowrap;" | <kbd>[[mw:Extension:Scribunto#Usage|{<nowiki/>{#invoke:''module''|''function''|''arg1''|...}}]]</kbd>
|| Use [[mw:Extension:Scribunto|Scribunto]] to transclude a [[Wikipedia:Lua|lua]] template, e.g. function ''replace'' in [[Module:String#replace|module ''String'']].
|-
! scope="row" id="language" | <kbd>[[mw:Help:Magic words#Miscellaneous|{<nowiki/>{#language]]:[[ISO 639|''code1''|''code2''}}]]</kbd>
| Print the name represented by the language code, e.g. '''en''' → '''English'''. Print in language 2 if given, e.g. <kbd><nowiki>{{#language:en|zh}}</nowiki></kbd> prints {{#language:en|zh}}
|-
! scope="row" id="lst" | <kbd>[[mw:Extension:Labeled Section Transclusion|<nowiki>{{#lst:}}, {{#lsth:}}, {{#lstx:}}</nowiki>]]</kbd>
| Three ways to [[Help:Labeled section transclusion|transclude a section of a page]].
|-
! scope="row" id="mentor" | <kbd>[[Wikipedia:Growth Team features|<nowiki>{{#mentor:Username}}</nowiki>]]</kbd>
| Display the currently assigned mentor for target Username, if set.
|-
! scope="row" id="property" | <kbd>[[m:Wikidata/Notes/Inclusion syntax v0.4|{<nowiki/>{#property:''arg1''|''arg2''|...}}]]</kbd>
| Include a [[d:Help:FAQ#Terminology|property]] ([[Wikipedia:Wikidata|Wikidata]]) from a named entity, instead of the default on the page.
|-
! scope="row" id="related" | <kbd>[[mw:Reading/Web/Projects/Read more|{<nowiki/>{#related:...}}]]</kbd>
| Links to similar topics, to engage readers. (Beta feature.)
|-
! scope="row" id="section" | <kbd>[[Help:Labeled section transclusion|{<nowiki/>{#section:}}, {<nowiki/>{#section-h:}}, {<nowiki/>{#section-x:}}]]</kbd>
| Aliases for <kbd><nowiki>{{#lst:}}, {{#lsth}}, {{#lstx}}</nowiki></kbd> (above).
|-
! scope="row" id="statements" | <kbd>[[d:Wikidata:How to use data on Wikimedia projects|{<nowiki/>{#statements:''arg1''|...}}]]</kbd>
| Display the value of any statement (Wikidata) included in an item.
|-
! scope="row" id="target" | <kbd>[[mw:Help:Extension:MassMessage#Parser function delivery lists|{<nowiki/>{#target:''fullpagename''}}]]</kbd>
| Send a message to a list of talk pages on the fullpagename, using the [[m:MassMessage|MassMessage function]].
|-
! scope="row" id="int" | <kbd>[[mw:Help:Magic words#Localization|{<nowiki/>{int:''pagename''}}]] </kbd>
| [[Wikipedia:Transclusion|Transclude]] an ''interface'' message, i.e. a [[Special:PrefixIndex/MediaWiki:|pagename in MediaWiki namespace]]
|-
! scope="row" id="bang" | <kbd>[[mw:Help:Magic_words#Other|{<nowiki/>{!}}]] </kbd>
| Used to include a pipe character as part of a template argument or table cell contents. Before this was added as a magic word, many wikis implemented this by creating [[:Template:!]] with <code>{{!}}</code> as the content.
|-
! scope="row" id="equals" | <kbd>[[mw:Help:Magic_words#Other|{<nowiki/>{=}}]] </kbd>
| Used to include an equal sign as part of a template argument or table cell contents. Before this was added as a magic word, many wikis implemented this by creating [[:Template:=]] with <code>{{=}}</code> as the content.
|}

=== Substituting and nesting ===
Magic words can sometimes behave weirdly when [[WP:SUBST|substituted]] or nested. It's possible to subst some magic words (so that the page stops being updated if the value of the word changes). Here are some examples of how this works:
{| class="wikitable plainrowheaders"
! scope="col" | {{idkc}}
! scope="col" | Code
! scope="col" | Output
|-
| {{nayc}}
| <syntaxhighlight lang="wikitext" inline>{{PAGESIZE}}</syntaxhighlight>
| {{suppress categories|{{PAGESIZE}}}}<!--To suppress the category "Pages which use a template in place of a magic word" generated by this erroneous usage-->
|-
| {{yeac}}
| <syntaxhighlight lang="wikitext" inline>{{PAGESIZE:Help:Magic words}}</syntaxhighlight>
| {{PAGESIZE:Help:Magic words}}
|-
| {{yeac}}
| <syntaxhighlight lang="wikitext" inline>{{subst:PAGESIZE:Help:Magic words}}</syntaxhighlight>
| {{PAGESIZE:Help:Magic words}}
|-
| {{yeac}}
| <syntaxhighlight lang="wikitext" inline>{{PAGESIZE:{{FULLPAGENAME}}}}</syntaxhighlight>
| {{PAGESIZE:{{FULLPAGENAME}}}}
|-
| {{nayc}}
| <syntaxhighlight lang="wikitext" inline>{{subst:PAGESIZE:{{FULLPAGENAME}}}}</syntaxhighlight>
| 0
|-
| {{yeac}}
| <syntaxhighlight lang="wikitext" inline>{{PAGESIZE:{{subst:FULLPAGENAME}}}}</syntaxhighlight>
| {{PAGESIZE:Help:Magic words}}
|-
| {{yeac}}
| <syntaxhighlight lang="wikitext" inline>{{subst:PAGESIZE:{{subst:FULLPAGENAME}}}}</syntaxhighlight>
| {{PAGESIZE:{{FULLPAGENAME}}}}
|}

== See also ==
* [[mw:Localisation]]
* [[mw:Manual:Extending wiki markup]]
* [https://phabricator.wikimedia.org/diffusion/MW/history/master/includes/parser/CoreParserFunctions.php CoreParserFunctions.php]
* {{myprefs|Gadgets|Editing|check={{int:gadget-DotsSyntaxHighlighter}}}}
* [[Special:Version]], see last section "Parser function hooks":<!--(a #section link is not possible)-->a list that should include all of the magic words on this page
* {{tl|Ifexist not redirect}}, works with the <code><nowiki>{{#ifexist:}}</nowiki></code> expression while allowing redirects to be identified and parsed differently

== Notes ==
{{Notelist}}

{{Wikipedia technical help|collapsed}}

[[Category:Wikipedia features]]