Help:Magic words

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This help page is based on public-domain CC0 content originally located at MediaWiki.org.

Magic words are strings of text that MediaWiki associates with a return value or function, such as time, site details, or page names. This page explains only the standard magic words; for a technical reference, see Manual:Magic words.

There are three general types of magic words:

Variables and parser functions can use subst:, just like templates. Page-dependent magic words will affect or return data about the current page (by default), even if the word is added through a transcluded template or included system message.

Behaviour switches

A behaviour switch controls the layout or behaviour of the page and can often be used to specify desired omissions and inclusions in the content.


Word

Description

Versions

Table of contents

__NOTOC__

Hides the table of contents (TOC).

__FORCETOC__

Forces the table of contents to appear at its normal position (before the first header, overriding __NOTOC__).

__TOC__

Places a table of contents at the word's current position (overriding __NOTOC__). If this is used multiple times, the table of contents will appear at the first word's position.

Editing

__NOEDITSECTION__

Hides the section edit links beside headings. This is especially useful where a heading is created from within a template: the normal wiki section-edit would in this case edit the template code, which is normally counterintuitive to the user. Use of this in a template will extend the effect to that template, the pages it's included on, and any other templates included on the same page. For a workaround, see m:Help:Editing sections of included templates.

__NEWSECTIONLINK__

Adds a link beside the "edit" tab for adding a new section on a non-talk page (see Adding a section to the end).

MW 1.7 and after
__NONEWSECTIONLINK__

Removes the link beside the "edit" tab on pages in talk namespaces.

MW 1.15 and after (47522)

Categories

__NOGALLERY__

Used on a category page, replaces thumbnails in the category view with normal links.

MW 1.7 and after
__HIDDENCAT__

Used on a category page, hides the category from the lists of categories in its members and parent categories (there is an option in the user preferences to show them).

MW 1.13 and after

Language conversion

__NOCONTENTCONVERT__
__NOCC__

On wikis with language variants, don't perform any content language conversion (character and phase) in article display; for example, only show Chinese (zh) instead of variants like zh_cn, zh_tw, zh_sg, or zh_hk.

__NOTITLECONVERT__
__NOTC__

On wikis with language variants, don't perform language conversion on the title (all other content is converted).

Other

__START__

No effect. Was used to point where database message starts after comment that should not be transcluded. Removed in r1695 and completely removed in r24784.

MW 1.10 and before (1610)
__END__

Explicitly marks the end of the article, to prevent MediaWiki from removing trailing whitespace. Removed in rev:19213.

MW 1.1  — 1.8
__INDEX__

Tell search engines to index the page (overrides $wgArticleRobotPolicies but not robots.txt). It obeys $wgExemptFromUserRobotsControl variable.

MW 1.14 and after
__NOINDEX__

Tell search engines not to index the page (i.e. do not list in search engines' results). It obeys $wgExemptFromUserRobotsControl variable.

MW 1.14 and after (37973)
__STATICREDIRECT__

On redirect pages, don't allow MediaWiki to automatically update the link when someone moves a page and checks "Update any redirects that point to the original title" (which requires $wgFixDoubleRedirects).

MW 1.13 and after (37928)

Variables

Variables return information about the current page, wiki, or date. Their syntax is similar to templates. Variables marked as "[expensive]" are tracked by the software, and the number that can be included on a page is limited. If a template name conflicts with a variable, the variable will be used (so to transclude the template Template:PAGENAME you would need to write {{Template:PAGENAME}}). In some cases, adding parameters will force the parser to invoke a template; for example, {{CURRENTDAYNAME|x}} transcludes Template:CURRENTDAYNAME, not the variable.

Date and time

The following variables return the current date and time in UTC. Due to MediaWiki and browser caching, these variables frequently show when the page was cached rather than the current time. The date and time magic words are formatted in the wiki content language. Since 1.19, they depend on the page content language.


Variable Output Description Versions
Year
{{CURRENTYEAR}} 2020 Year

Month

{{CURRENTMONTH}} 02 Month (zero-padded number)
{{CURRENTMONTH1}} 2 Month (unpadded number)
{{CURRENTMONTHNAME}} February Month (name)
{{CURRENTMONTHNAMEGEN}} February Month (genitive form)
{{CURRENTMONTHABBREV}} Feb Month (abbreviation) MW 1.5 and after
Day
{{CURRENTDAY}} 25 Day of the month (unpadded number)
{{CURRENTDAY2}} 25 Day of the month (zero-padded number) MW 1.6 and after
{{CURRENTDOW}} 2 Day of the week (unpadded number), 0 (for Sunday) through 6 (for Saturday)
{{CURRENTDAYNAME}} Tuesday Day of the week (name)
Time
{{CURRENTTIME}} 01:07 Time (24-hour HH:mm format)
{{CURRENTHOUR}} 01 Hour (24-hour zero-padded number)
Other
{{CURRENTWEEK}} 9 Week (number)
{{CURRENTTIMESTAMP}} 20200225010745 YYYYMMDDHHmmss timestamp MW 1.7 and after

The following variables do the same as the preceding ones but using the site's server config or $wgLocaltimezone.

  • {{LOCALYEAR}}
  • {{LOCALMONTH}}
  • {{LOCALMONTH1}}
  • {{LOCALMONTHNAME}}
  • {{LOCALMONTHNAMEGEN}}
  • {{LOCALMONTHABBREV}}
  • {{LOCALDAY}}
  • {{LOCALDAY2}}
  • {{LOCALDOW}}
  • {{LOCALDAYNAME}}
  • {{LOCALTIME}}
  • {{LOCALHOUR}}
  • {{LOCALWEEK}}
  • {{LOCALTIMESTAMP}}

For more thorough time formatting, you may want to install ParserFunctions to use the #time parser function.

Technical metadata

Note: Revision variables return data about the latest edit to the current page, even if viewing an older version of the page.


Variable Output Description Versions
Site
{{SITENAME}} Hacked by Del.icio.us! The wiki's site name ($wgSitename).
{{SERVER}} http://rfm.referata.com Domain URL ($wgServer).
{{SERVERNAME}} rfm.referata.com Subdomain and domain name (no longer dependent on $wgServerName as of version 1.17).
{{DIRMARK}}
{{DIRECTIONMARK}}

Outputs a Unicode directional mark that matches the wiki's default language's direction (‎ on left-to-right wikis, ‏ on right-to-left wikis), useful in text with multi-directional text. Since 1.19, it depends on the page content language. MW 1.7 and after (14442)
{{SCRIPTPATH}} /w Relative script path ($wgScriptPath).
{{STYLEPATH}} /w/skins Relative style path ($wgStylePath). MW 1.16 and after
{{CURRENTVERSION}} 1.25.5 (d75270f) The wiki's MediaWiki version. MW 1.7 and after (14199)
{{CONTENTLANGUAGE}}
{{CONTENTLANG}}
en
en
The wiki's default interface language ($wgLanguageCode). MW 1.7 and after (14661)
Page
{{PAGEID}} 59 Returns the page identifier. MW 1.20 and after (9858)
{{PROTECTIONLEVEL:action}} Outputs the protection level (e.g. "autoconfirmed", "sysop") for a given action (e.g. "edit", "move") on the current page. Returns an empty string if not protected. MW 1.15 and after (45587)
{{PROTECTIONEXPIRY:action}} Outputs the protection expiry (e.g. "20160418155030", "infinity") for a given action (e.g. "edit", "move") on the current page. Returns "infinity" if not protected. MW 1.27 and after (255717)
{{CASCADINGSOURCES}} [Expensive] Returns the sources of any cascading protection acting on the current page. Pages will not return their own title unless they transclude themselves. MW 1.23 and after (104999)
Latest revision to current page
{{REVISIONID}} 225 Unique revision ID. MW 1.5 and after
{{REVISIONDAY}} 1 Day edit was made (unpadded number). MW 1.8 and after
{{REVISIONDAY2}} 01 Day edit was made (zero-padded number). MW 1.8 and after
{{REVISIONMONTH}} 10 Month edit was made (zero-padded number as of 1.17+, unpadded number in prior versions). MW 1.8 and after
{{REVISIONMONTH1}} 10 Month edit was made (unpadded number). MW 1.17 and after (66200)
{{REVISIONYEAR}} 2016 Year edit was made. MW 1.8 and after
{{REVISIONTIMESTAMP}} 20161001190510 Timestamp as of time of edit. MW 1.8 and after
{{REVISIONUSER}} Routhwick The username of the user who made the most recent edit to the page, or the current user when previewing an edit. MW 1.15 and after (48149)
{{REVISIONSIZE}} 12090 The size (bytes of wikitext) of the current revision of this page. MW 1.22 and after (82650)
Affects page content
{{DISPLAYTITLE:title}}
{{DISPLAYTITLE:</>title|noerror}}
{{DISPLAYTITLE:</>title|noreplace}}
Format the current page's title header. The value must be equivalent to the default title: only capitalization changes to certain parts of the title (not all) and replacing spaces with underscores are allowed (this can be changed with $wgRestrictDisplayTitle). It can be disabled or enabled by $wgAllowDisplayTitle; disabled by default before 1.10+, enabled by default thereafter. It can take a second argument of noerror or noreplace to suppress error messages when multiple displaytitles are used on one page or to make this displaytitle do nothing if a displaytitle was already specified earlier in the page. MW 1.7 and after
MW 1.24 and after (144870)
(for noerror and noreplace)
{{DEFAULTSORT:sortkey}}
{{DEFAULTSORTKEY:sortkey}}
{{DEFAULTCATEGORYSORT:sortkey}}
{{DEFAULTSORT:sortkey|noerror}}
{{DEFAULTSORT:sortkey|noreplace}}
Used for categorizing pages, sets a default category sort key. For example if you put {{DEFAULTSORT:Smith , John}} at the end of John Smith, the page would be sorted under "S" by default in categories. It can take a second argument of noerror or noreplace to suppress error messages when multiple defaultsortkeys are used on one page or to make this defaultsort do nothing if a defaultsort was already specified earlier in the page. MW 1.10 and after
MW 1.19 and after (96767)
(for noerror and noreplace)

Statistics

Numbers returned by these variables normally contain separators (commas, dots or spaces, depending on the local language) but can return raw numbers with the ":R" flag (for example, {{NUMBEROFPAGES}} → 5,753 and {{NUMBEROFPAGES:R}} → 5753). Use "|R" for magic words that require a parameter like PAGESINCATEGORY (for example {{PAGESINCATEGORY:Help}} and {{PAGESINCATEGORY:Help|R}}, or {{PAGESINCATEGORY:Help|subcats}} and {{PAGESINCATEGORY:Help|subcats|R}}). Also applicable to {{PAGESIZE:page name}} hereinbefore.

The number magic words are formatted in the wiki content language. Since 1.19, it depends on the page content language.


Variable Output Description Versions
{{NUMBEROFPAGES}} 5,753 Number of wiki pages. MW 1.7 and after
{{NUMBEROFARTICLES}} 1 Number of pages in content namespaces.
{{NUMBEROFFILES}} 0 Number of uploaded files. MW 1.5 and after
{{NUMBEROFEDITS}} 20,421 Number of wiki edits. MW 1.10 and after (21319)
{{NUMBEROFVIEWS}} Number of page views. Usually useless on a wiki using caching. Removed in rev:150699. MW 1.14  — 1.24 (42721)
{{NUMBEROFUSERS}} 1 Number of registered users. MW 1.7 and after
{{NUMBEROFADMINS}} 1 Number of users in the sysop group. MW 1.7 and after
{{NUMBEROFACTIVEUSERS}} 0 Number of active users, based on the criteria used in Special:Statistics. MW 1.15 and after (47392)
{{PAGESINCATEGORY:categoryname}}
{{PAGESINCAT:categoryname}}
62
62
[ Expensive] Number of pages (including subcategories and files) in the given category. (Category:Help used for demonstration) MW 1.13 and after (32932)
{{PAGESINCATEGORY:categoryname|all}}
{{PAGESINCATEGORY:categoryname|pages}}
{{PAGESINCATEGORY:categoryname|subcats}}
{{PAGESINCATEGORY:categoryname|files}}
62
59
3
0
[Expensive] Respectively, the number of
  • all pages
  • ordinary pages (excluding subcategories and files)
  • subcategories or
  • files

in the given category. (Category:Help used for demonstration)

MW 1.20 and after (12790)
{{NUMBERINGROUP:groupname}}
{{NUMINGROUP:groupname}}
1
1
({{NUMBERINGROUP:bureaucrat}} used here)
Number of users in a specific group. MW 1.14 and after (40116)
{{PAGESINNS: index}}
{{PAGESINNAMESPACE:index}}
Not enabled [Expensive] Number of pages in the given namespace (replace index with the relevant namespace index). For instance, {{PAGESINNAMESPACE:14}} will output the number of category pages. {{PAGESINNS:0}} differs from {{NUMBEROFARTICLES}} in that the former includes redirects and disambiguation pages. Disabled by default, enable with $wgAllowSlowParserFunctions. MW 1.7 and after

Page names

Variable Output Description Versions
{{FULLPAGENAME}} Help:Magic words Namespace and full page title (including all subpage levels). MW 1.6 and after
{{PAGENAME}} Magic words Full page title (including all subpage levels) without the namespace.
{{BASEPAGENAME}} Magic words Page title of the page in the immediately superior subpage level without the namespace ("Title/foo" on "Help:Title/foo/bar"). For more complex splitting, use {{#titleparts:}} from the ParserFunctions extension. MW 1.7 and after
{{SUBPAGENAME}} Magic words The subpage title ("bar" on "Help:Title/foo/bar"). MW 1.6 and after
{{SUBJECTPAGENAME}}
{{ARTICLEPAGENAME}}
Help:Magic words
Help:Magic words
Full page name of the associated subject (e.g. article or file). Useful on talk pages. MW 1.7 and after
{{TALKPAGENAME}} Help talk:Magic words Full page name of the associated talk page. MW 1.7 and after
{{ROOTPAGENAME}} Magic words Name of the root of the current page. Would return Title on page Help:Title/Foo/Bar. MW 1.22 and after

The {{BASEPAGENAME}} and {{SUBPAGENAME}} magic words only work in namespaces that have subpages enabled. See $wgNamespacesWithSubpages for information on enabling subpages.

As of 1.15+, these can all take a parameter, allowing specification of the page to be operated on, instead of just the current page:

  • {{PAGENAME:Template:Main Page}}Main Page

Warning: Page titles containing certain characters, such as apostrophes ' or asterisks *, may produce unexpected results when handled with these magic words, e.g. {{PAGESINCATEGORY:{{PAGENAME}}}}. See bugs T16779, T18474, T37628, and T37746. One simple way to fix this is wrapping the pagename in {{#titleparts:}} from the ParserFunctions extension.

For example, if the page name is "L'Aquila", the following code will produce the string "Numeric char encoding":

{{#switch:{{PAGENAME}} | L'Aquila = No translation | L = Not OK | L&apos;Aquila = Entity escaping | L&#39;Aquila = Numeric char encoding }}

URL encoded page names

The following are equivalents encoded for use in MediaWiki URLs (i.e. spaces replaced with underscores and some characters HTML escaped using numeric character encoding):

  • {{FULLPAGENAMEE}}
  • {{PAGENAMEE}}
  • {{BASEPAGENAMEE}}
  • {{SUBPAGENAMEE}}
  • {{SUBJECTPAGENAMEE}}
  • {{ARTICLEPAGENAMEE}}
  • {{TALKPAGENAMEE}}
  • {{ROOTPAGENAMEE}}

Note that {{PAGENAME:...}}, {{PAGENAMEE:...}} and {{urlencode:...}} have distinct implementations. See mw:Manual:PAGENAMEE encoding for details.

Namespaces

Variable Output Description Versions
{{NAMESPACE}} Help Name of the page's namespace
{{NAMESPACENUMBER}} 12 ID of the page's namespace MW 1.20 and after (4056)
{{SUBJECTSPACE}}
{{ARTICLESPACE}}
Help
Help
Name of the associated content namespace MW 1.7 and after
{{TALKSPACE}} Help talk Name of the associated talk namespace MW 1.7 and after

The following are equivalents encoded for use in MediaWiki URLs (spaces replaced with underscores and some characters percent-encoded):

  • {{NAMESPACEE}}
  • {{SUBJECTSPACEE}}
  • {{ARTICLESPACEE}}
  • {{TALKSPACEE}}

As of 1.15+, these can take a full-page-name parameter and will return the requested namespace associated with that page, instead of with the current page:

  • {{NAMESPACE:MediaWiki}} (Pages in main space will return empty)
  • {{NAMESPACE:Template:Main Page}}Template
  • {{SUBJECTSPACE:Template:Main Page}}Template
  • {{TALKSPACE:Template:Main Page}}Template talk

Parameter must not be a namespace name:

  • {{SUBJECTSPACE:Help talk}}  (Empty)

Other

Variable Output Description Versions
{{!}} | 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 | as the content. MW 1.24 and after (136234)

Parser functions

Parser functions are very similar to variables but take one or more parameters (technically, any magic word that takes a parameter is a parser function), and the name is sometimes prefixed with a hash to distinguish them from templates.

This page only describes parser functions that are integral to the MediaWiki software. Other parser functions may be added by MediaWiki extensions such as Extension:ParserFunctions. For those, see Help:ParserFunctions.

Technical metadata of another page

Parser function Output
(for page MediaWiki)
Description Versions
{{PAGEID: page name }}</nowiki> 0 [Expensive] Returns the page identifier of the specified page*. MW 1.23 and after (76534)
{{PAGESIZE: page name }}
{{PAGESIZE: page name |R}}
0
0
[Expensive] Returns the byte size of the specified page. Use "|R" to get raw (unformatted) numbers. MW 1.13 and after (33551)
{{PROTECTIONLEVEL: action | page name}} [Expensive] Outputs the protection level (e.g. "autoconfirmed", "sysop") for a given action (e.g. "edit", "move") on the specified page. Returns an empty string if not protected. MW 1.21 and after (44683)
{{PROTECTIONEXPIRY: action | page name}} [Expensive] Outputs the protection expiry (e.g. "20160418155030", "infinity") for a given action (e.g. "edit", "move") on the specified page. Returns "infinity" if not protected. MW 1.27 and after (255717)
{{CASCADINGSOURCES: page name}} [Expensive] Returns the sources of any cascading protection acting on the specified page. Pages will not return their own title unless they transclude themselves. MW 1.23 and after (104999)
{{REVISIONID: page name }} [ Expensive] Unique revision ID of the last revision on the specified page*. MW 1.23 and after (76534)
{{REVISIONDAY: page name }} [Expensive] Day of edit from the last revision of the specified page* (unpadded number). MW 1.23 and after (76534)
{{REVISIONDAY2: page name }} [Expensive] Day of edit from the last revision of the specified page* (zero-padded number). MW 1.23 and after (76534)
{{REVISIONMONTH: page name }} [Expensive] Month of edit from the last revision of the specified page* (zero-padded number as of 1.17+, unpadded number in prior versions). MW 1.23 and after (76534)
{{REVISIONMONTH1: page name }} [Expensive] Month of edit from the last revision of the specified page* (unpadded number). MW 1.23 and after (76534)
{{REVISIONYEAR: page name }} [Expensive] Year of edit from the last revision of the specified page*. MW 1.23 and after (76534)
{{REVISIONTIMESTAMP: page name }} [Expensive] Timestamp as of time of edit on the specified page*. MW 1.23 and after (76534)
{{REVISIONUSER: page name }} [Expensive] The username from the last revision on the specified page*. MW 1.23 and after (76534)
*When the given param is equal to the current title of the parser, the parser function will yield the previous versions on preview and on substitution, that includes empty strings when used on page creation but using the values from the current version for page view, including viewing old revisions. In this case it is a non-expensive parser function.

URL data

Parser function Input → Output Description Versions
{{localurl:page name}}
{{localurl:page name
|query_string}}
{{localurl:MediaWiki}}
→ /wiki/MediaWiki
{{localurl:MediaWiki|printable=yes}}
→ /w/index.php?title=MediaWiki&printable=yes
The relative path to the title.
{{fullurl:page name}}
{{fullurl:page name
|query_string}}

{{fullurl:interwiki:remote page name
|query_string}}
{{fullurl:Category:Top level}}
http://rfm.referata.com/wiki/Category:Top_level
{{fullurl:Category:Top level|action=edit}}
http://rfm.referata.com/w/index.php?title=Category:Top_level&action=edit
{{fullurl:s:Electra|action=edit}}
https://en.wikisource.org/wiki/Electra?action=edit
{{fullurl:s:es:Electra|action=edit}}
https://en.wikisource.org/wiki/es:Electra?action=edit
A protocol-relative path to the title. This will also resolve interwiki prefixes. Note: Unbracketed (plain) protocol-relative links are not automagically linked. MW 1.5 and after
{{canonicalurl:page name}}
{{canonicalurl:page name
|query_string}}

{{canonicalurl:interwiki:remote page name
|query_string}}
{{canonicalurl:Category:Top level}}
http://rfm.referata.com/wiki/Category:Top_level
{{canonicalurl:Category:Top level|action=edit}}
http://rfm.referata.com/w/index.php?title=Category:Top_level&action=edit
The absolute path to the title, using the canonical URL. This will also resolve interwiki prefixes. MW 1.18 and after
{{filepath:file name}}
{{filepath:file name|nowiki}}
{{filepath:file name|thumbnail_size}}
{{filepath:Wiki.png}}

{{filepath:Wiki.png|nowiki}}

{{filepath:Example.svg|300}}
http://rfm.referata.com/w/images/thumb/8/84/Example.svg/300px-Example.svg.png
A protocol-relative path to the full size or thumbnail (1.18+) of a media file. MW 1.12 and after (25854)
MW 1.18 and after (80813)
{{urlencode:string}} or
{{urlencode:string|QUERY}}
{{urlencode:string|WIKI}}
{{urlencode:string|PATH}}
WIKI to |QUERY in 1.17; this may break templates that rely on this function. The input encoded for use in URLs. Note that there is no urldecode function like there is in the obsolete Extension:StringFunctions.
Encoding
codespace
 none + 
QUERY + 
 WIKI _ 
 PATH%20
MW 1.7 and after (14273) (or MW 1.17 and after (64726)
MW 1.17 and after (64726)
MW 1.17 and after (64726) )
{{anchorencode:string}} {{anchorencode:x y z á é}}
→ x_y_z_.C3.A1_.C3.A9
The input encoded for use in URL section anchors (after the “#” symbol in a URL). MW 1.6 and after (16279)

Namespaces

{{ns:}} returns the current localised name for the namespace with that index, canonical name, or local alias. Thus {{ns:6}}, {{ns:File}}, and {{ns:Image}} (an old name for the File namespace) all return "File". On a wiki where the content language is French, {{ns:Fichier}} is also valid, but {{ns:Datei}} (the localisation of "File" in German) is not.

{{nse:}} is the equivalent encoded for MediaWiki URLs. It does the same, but it replaces spaces with underscores, making it usable in external links.


Content namespaces Talk namespaces
Usage Output Usage Output
{{ns:-2}} / {{ns:Media}} Media {{ns:-1}} / {{ns:Special}} Special
(no talk page)
{{ns:0}} / {{ns:}} {{ns:1}} / {{ns:Talk}} Talk
{{ns:2}} / {{ns:User}} User {{ns:3}} / {{ns:User talk}} User talk
{{ns:4}} / {{ns:Project}} Relformaide Dictionary
Varies between wikis
{{ns:5}} / {{ns:Project talk}} Relformaide Dictionary talk
{{ns:6}} / {{ns:File}} or {{ns:Image}} File {{ns:7}} / {{ns:File talk}} or {{ns:Image talk}} File talk
{{ns:8}} / {{ns:MediaWiki}} MediaWiki {{ns:9}} / {{ns:MediaWiki talk}} MediaWiki talk
{{ns:10}} / {{ns:Template}} Template {{ns:11}} / {{ns:Template talk}} Template talk
{{ns:12}} / {{ns:Help}} Help {{ns:13}} / {{ns:Help talk}} Help talk
{{ns:14}} / {{ns:Category}} Category {{ns:15}} / {{ns:Category talk}} Category talk

Don't confuse localised namespaces with custom namespaces.

Formatting

Usage Input → Output Description Version
{{formatnum:unformatted number}}
{{formatnum:formatnum-formatted number|R}}
{{formatnum:unformatted number|NOSEP}}
  • Simple:
    • {{formatnum:987654321.654321}}
      → 987,654,321.654321
    • {{formatnum:987,654,321.654321|R}}
      → 987654321.654321
  • Advanced:
    • {{formatnum:{{formatnum:987654321.654321}}|R}}
      → 987654321.654321 (on any locale)
    • {{formatnum:00001}}
      → 00,001
    • {{formatnum:987654321.654321 |NOSEP}}
      → 987654321.654321
    • Examples with বাংলা (Bengali) locale:
      • {{formatnum:987654321.654321}}
        → ৯৮,৭৬,৫৪,৩২১.৬৫৪৩২১ *** {{formatnum:987654321.654321 |NOSEP}}
        → ৯৮৭৬৫৪৩২১.৬৫৪৩২১
      • {{formatnum:৯৮,৭৬,৫৪,৩২১.৬৫৪৩২১ |R}}
        → 987654321.654321

Unsupported:
{{formatnum:{{formatnum:987.654.321}}}}
→ 987 654 321 (e.g. with Italian locale)


Examples of wrong input (unreliable output), with or without |R:
{{formatnum:987,654.321|R}} (the least broken)
{{formatnum:987.654,321|R}}
{{formatnum:987 654,321|R}}
{{formatnum:987&nbsp;654,321|R}}

Takes an unformatted number (arab, no group separators and . as decimal separator) and outputs it in the localized digit script and formatted with decimal and decimal group separators, according to the wiki's default locale.
The |R parameter can be used to reverse the behavior, for use in mathematical situations: it's reliable and should be used only to deformat numbers which are known to be formatted exactly as formatnum formats them with the wiki's locale.
The NOSEP ("no separators") parameter means that no group / decimal separators are changed; formatnum will only transform the digits themselves in languages which don't use the Hindu–Arabic numeral system. NOSEP can also prevent non-standard digit groupings you wouldn't expect.

Warning: Leading zeroes are not removed, you can use {{#expr:00001}} instead if you have Extension:ParserFunctions installed.
Warning: If you don't input numbers in the exact format required, don't expect any reliable output, especially on non-English wikis.


If you really need to format (according the wiki's locale) a number in unknown input format, you could try and use formatnum two times (but not if it can have a decimal group, or its separator will be eaten or the number won't be formatted). Be aware that this is more a hack than a regular way to proceed, thus the output may be not reliable.

MW 1.7 and after
MW 1.13 and after (32012)
format}}
{{#formatdate:date|format}}
{{#dateformat:25 dec 2009|ymd}}
2009 Dec 25 (your pref), 2009 Dec 25 (default)
{{#formatdate:dec 25,2009|dmy}}
25 Dec 2009 (your pref), 25 Dec 2009 (default)
{{#dateformat:2009-12-25|mdy}}
December 25, 2009 (your pref), December 25, 2009 (default)
{{#formatdate:2009 dec 25|ISO 8601}}
2009-12-25 (your pref), 2009-12-25 (default)
{{#dateformat:25 decEmber|mdy}}
DecEmber 25 (your pref), DecEmber 25 (default)
Note: In the example hereinbefore, "your pref" refers to your date preference on the current MediaWiki wiki only.
Formats an unlinked date based on user "date format" preference, and adds metadata tagging it as a formatted date. For logged-out users and those who have not set a date format in their preferences, dates can be given a default: mdy, dmy, ymd, ISO 8601 (all case sensitive). If only the month and day are given, only mdy and dmy are valid. If a format is not specified or is invalid, the input format is used as a default. If the supplied date is not recognized as a valid date (specifically, if it contains any metadata such as from a nested use of these or similar templates), it is rendered unchanged, and no (additional) metadata is generated.
Warning': Although the ISO 8601 standard requires that dates be in the Gregorian calendar, the ISO parameter in this function will still format dates that fall outside the usual Gregorian range (e.g. dates prior to 1583). Also, the magic word cannot properly convert between negative years (used with ISO 8601) and years BC or years BCE (used in general writing).
MW 1.15 and after (48249)
{{lc:string}} {{lc:DATA CENTER}} → data center The lowercase input. MW 1.5 and after
{{lcfirst:string}} {{lcfirst:DATA center}} → dATA center The input with the very first character lowercase. MW 1.5 and after
{{uc:string}} {{uc:text transform}} → TEXT TRANSFORM The uppercase input. MW 1.5 and after
{{ucfirst:string}} {{ucfirst:text TRANSFORM}} → Text TRANSFORM The input with the very first character uppercase. MW 1.5 and after
{{padleft:xyz|stringlength}}
{{padleft:xyz|strlen|char}}
{{padleft:xyz|strlen|string}}
{{padleft:xyz|5}} → 00xyz
{{padleft:xyz|5|_}} → __xyz
{{padleft:xyz|5|abc}} → abxyz
{{padleft:xyz|2}} → xyz
{{padleft:|1|xyz}} → x (first character of the string)
Inserts a string of padding characters (character chosen in third parameter; default "0") of a specified length (second parameter) next to a chosen base character or variable (first parameter). The final digits or characters in the base replace the final characters in the padding; i.e. {{padleft:44|3|0}} produces 044. The padding string may be truncated if its length does not evenly divide the required number of characters. Only the first character of the third parameter is used in versions up to 1.12, but by version 1.15, all the characters are used. Bug (fixed in r45734): multibyte characters are interpreted as two characters, which can skew width. These also cannot be used as padding characters. MW 1.8 and after
{{padright:xyz|stringlength}}
{{padright:xyz|strlen|char}}
{{padright:xyz|strlen|string}}
{{padright:xyz|5}} → xyz00
{{padright:xyz|5|_}} → xyz__
{{padright:xyz|5|abc}} → xyzab
{{padright:xyz|2}} → xyz
{{padright:|1|xyz}} → x
Identical to padleft but adds padding characters to the right side. MW 1.8 and after

See also: Extension:StringFunctions.

Localisation

Here are the magic words which are used as main localisation tools. Other magic words will often depend on the wiki's locale and configuration or on the chosen language: see in particular #Date and time, #Formatting, #Miscellaneous. More magic words are added by the Translate extension.

The usage of these magic words can be very complex, and the documentation is currently incomplete; there's some more info on PLURAL, GRAMMAR, GENDER.


Usage Input → Output Description Version
{{plural:2|is|are}} {{plural:0|is|are}} → are
{{plural:1*1|is|are}} → is
{{plural:21 mod 10|is|are}} → are
{{plural:{{#expr:21 mod 10}}|is|are}} → is
{{plural:1|is|are}} → is
{{plural:2|is|are}} → are
(For Russian)
{{PLURAL:5|1=Категория|Категории}}  → Категории
{{PLURAL:3|страница|страницы|страниц}} → страницы
{{PLURAL:5|страница|страницы|страниц}} → страниц
Outputs the singular form (second parameter) if the first parameter is an expression equalling one; the plural form (third parameter) otherwise. Its functioning is language-dependent.
Some language codes (ab, av, ba, bxr, ce, crh_cyrl, cv, inh, koi, krc, kv, lbe, lez, mhr, mrj, myv, ru, tt_cyrl, tyv, udm, xal) used 3 plural forms (updated 01.2014):
  • Form 1: 1, 21, 31, 41, 51, 61, 71, 81, 101, 1001, …
  • Form 2: 0, 5, 6, 7, 8, …, 18, 19, 100, 1000, 10000, 100000, 1000000, …
  • Form 3: 2, 3, 4, 22, 23, 24, 32, 33, 34, 42, 43, 44, 52, 53, 54, 62, 102, 1002, …
{{grammar:N|noun}} Outputs the correct inflected form of the given word described by the inflection code after the colon (language-dependent). Grammar transformations are used for inflected languages like Polish. See also $wgGrammarForms. MW 1.7 and after
{{gender:username|text for every gender}}
{{gender:Username|male text|female text|text for unspecified}}
{{gender:|male text|female text|text for unspecified}}
{{gender:.|male text|female text|text for unspecified}}
(Depends on the named user's gender) A switch for the gender set in Special:Preferences.
Note: The first example is basically a no-op.
Note: If 3rd parameter is omitted and user hasn't defined his/her gender, then text if user is male is returned.
A blank username field ({{gender:|) means the current user, but can be used only in interface messages (MediaWiki namespace).
A dot username (.) means the default user gender on this wiki.
MW 1.15 and after (46247)
{{int:message name}} {{int:edit}}Edit
(Depends on user language; try: frja)
Internationalizes (translates) the given interface (MediaWiki namespace) message into the user language. For msgnw and other transclusion magic words, see the Transclusion modifiers section. Note that this can damage / confuse cache consistency in MediaWiki 1.17 and earlier, see bug 14404.
{{int:editsectionhint|MediaWiki}} {{int:editsectionhint|MediaWiki}}Edit section: MediaWiki You may also use parameters with translations.
Parameters are designated in messages with: $1, $2, $3, etc.
For example, here is the message for editsectionhint: Edit section: $1
In this example, MediaWiki replaces $1.

Miscellaneous