Help:Magic words

[[Category:Moved to MediaWiki]]
<div style="font-weight:bold;background-color:#FAF6ED;border:2px solid red;padding:5px;">This page has been replaced by "[[mw:Help:Magic words|Help:Magic words]]" on MediaWiki.org. Any modifications, if still appropriate, should be made on that page.</div>

{{H:h|editor toc}}This is an organized index of Magic words used in MediaWiki.  

A "'''[[w:Magic (programming)|magic]] word'''" is a symbol recognized by the MediaWiki software and which when seen in the non-commented text of the page, triggers the software to do something other than display that symbol, or transclude a page with that name, but instead to use the symbol directly. 

A magic word can be:
*a behavior switch, called using an upper case word, preceded and followed by two underscores, e.g. '''<nowiki>__NOTOC__</nowiki>'''
*an [[w:XML|XML]] object, coded similar to HTML, preceded by "<" (and for the end tag "/") and followed by ">", as in '''&lt;nowiki>'''...'''&lt;/nowiki>'''
*a [[help:parser function|parser function]]: similar to a template, a word preceded by the symbols "'''<nowiki>{{</nowiki>'''" and followed by "'''<nowiki>}}</nowiki>'''", and optionally parameter definitions between pipe characters, except that the part before the first pipe (or without pipes, the text between the braces) contains a colon ("''':'''"), e.g. <nowiki>{{</nowiki>'''ns:'''3}} and {{'''#ifexpr:'''<nowiki>{{{1}}}>3|large|small}}</nowiki>
*a [[help:variable|variable]]: similar to a template without parameters, a word preceded by the symbols "'''<nowiki>{{</nowiki>'''" and followed by "'''<nowiki>}}</nowiki>'''", except the word used is in all upper case, e.g. '''<nowiki>{{CURRENTDAY}}</nowiki>'''  
*a template modifier
*an image modifier

If a page in the template namespace has the same name as a magic word, the magic word will be invoked instead.  If you discover you absolutely have to define a template with the same name as a magic word, prefix the name of the template with "'''msg:'''" or the name of the template namespace ("'''Template:'''").  See below for further details if you need this feature.

Tags which are used on this page such as "'''[MW1.5+]'''" indicate the [[w:MediaWiki|MediaWiki]] version that first supported the magic word. "XYZ" indicates user input, which is used in the example.

==Behavior switches==
A behavior switch is a directive to the page software to include or omit certain elements of the page interface, or otherwise constitutes a call to various parts of the pages standard layout. It is characterised by capitalised identifiers with double underscores either side.

=== Table of contents ===
:''For details see [[Help:Section]]'' 
{{H:TOC variables}}<br clear="left" />

=== Other ===
{| class="wikitable" border="2" cellpadding="4" cellspacing="0" width="79%"
! Word 
! Explanation
|-
| <nowiki>__NOEDITSECTION__</nowiki>
| Hides the edit links beside headings. Also, will no longer automatically edit only one section at a time when double- or right-clicking a heading (if you have that feature enabled in your preferences)
|-
| <nowiki>__NEWSECTIONLINK__</nowiki>
| '''[MW1.7+]''' Gives a "+"-link next to the edit-tab to make a new section on a non-talk page ([[Help:Section#Adding_a_section_at_the_end|post-a-comment feature]]).
|-
| <nowiki>__NOCONTENTCONVERT__</nowiki><br /><nowiki>__NOCC__</nowiki>
| Don't perform the content language conversion  (character and phase) in article display; for example, Chinese zh with zh_cn, zh_tw, zh_sg, zh_hk.
|-
| <nowiki>__NOGALLERY__</nowiki>
| '''[MW1.7+]''' This magic word allows images in category pages to be displayed as inline links instead of gallery.
|-
| <nowiki>__NOTITLECONVERT__</nowiki><br /><nowiki>__NOTC__</nowiki>
| Like <nowiki>__NOCC__</nowiki> but affecting article title only.
|-
| <nowiki>__END__</nowiki>
| Allows for trailing whitespace to be included in the page save. Removed in [[rev:19213|19213]].
|-
| <nowiki>__START__</nowiki>
| This magic word has no effect but an ID in <tt>MagicWord.php</tt> (<code>MAG_START</code>).
|-
| <nowiki>__HIDDENCAT__</nowiki>
| '''[MW1.13+]''' When placed anywhere on a category page, this magic word causes that category not to appear in the horizontal box near the bottom of  every member page. See [[Help:Category#Hidden_categories]] for further detail.
|- 
|  <nowiki>__NOINDEX__</nowiki>
| '''[MW1.13+]'''<!--r37973--> Search engines won't index the page.
|-
|  <nowiki>__INDEX__</nowiki>
| '''[MW1.13+]''' Search engines will index the page. (Overrides [[mw:Manual:$wgArticleRobotPolicies|$wgArticleRobotPolicies]], but not robots.txt.)
|-
|  <nowiki>__STATICREDIRECT__</nowiki>
| '''[MW1.13+]'''<!--r37928--> Redirects marked with this will not be fixed when someone moves a page and checks "Update any redirects that point to the original title".
|}<br clear="left" />

== Variables ==
:''For details see [[Help:Variable]]''

===Time=== 
The time in [[:en:UTC|UTC]].  Note that if the page was displayed by the same user and has not changed (has not been edited) since the last time it was displayed, it is possible that the page may be cached (by the user's browser) and the displayed time or date may not change.  Also, if a heavily used page, rather than freshly rendered by the software each time it is generated, is instead being retrieved from a caching system (such as the main page on Wikipedia) the date or time may not change from the last time the page was originally retrieved by the caching hardware or software.
{| class="wikitable sortable" border="2" cellpadding="4" cellspacing="0" 
! Word 
! class="unsortable" | Example 
! class="unsortable" | Explanation
|-
| <nowiki>{{CURRENTDAY}}</nowiki>
| <code>{{CURRENTDAY}}</code>
| Displays the current day in numeric form.
|-
| <nowiki>{{CURRENTDAY2}}</nowiki>
| <code>{{CURRENTDAY2}}</code>
| '''[MW1.6+]''' Same as <nowiki>{{CURRENTDAY}}</nowiki>, but with leading zero (01 .. 31).
|-
| <nowiki>{{CURRENTDAYNAME}}</nowiki>
| <code>{{CURRENTDAYNAME}}</code>
| Name of the day in the language of the project or English.
|-
| <nowiki>{{CURRENTDOW}}</nowiki>
| <code>{{CURRENTDOW}}</code>
| Same as <nowiki>{{CURRENTDAYNAME}}</nowiki>, but as a number (0=Sunday, 1=Monday...).
|-
| <nowiki>{{CURRENTMONTH}}</nowiki>
| <code>{{CURRENTMONTH}}</code>
| The number 01 .. 12 of the month.
|-
| <nowiki>{{CURRENTMONTHABBREV}}</nowiki>
| <code>{{CURRENTMONTHABBREV}}</code>
| '''[MW1.5+]''' Same as <nowiki>{{CURRENTMONTH}}</nowiki>, but in abbreviated form (Jan .. Dec).
|-
| <nowiki>{{CURRENTMONTHNAME}}</nowiki>
| <code>{{CURRENTMONTHNAME}}</code>
| Same as <nowiki>{{CURRENTMONTH}}</nowiki>, but in named form (January .. December).
|-
| <nowiki>{{CURRENTTIME}}</nowiki>
| <code>{{CURRENTTIME}}</code>
| The current time (00:00 .. 23:59).
|-
| <nowiki>{{CURRENTHOUR}}</nowiki>
| <code>{{CURRENTHOUR}}</code>
| The current hour (00 .. 23).
|-
| <nowiki>{{CURRENTWEEK}}</nowiki>
| <code>{{CURRENTWEEK}}</code>
| Number of the current week (1-53) according to [[w:en:ISO 8601|ISO 8601]] with no leading zero.
|-
| <nowiki>{{CURRENTYEAR}}</nowiki>
| <code>{{CURRENTYEAR}}</code>
| Returns the current year.
|-
| <nowiki>{{CURRENTTIMESTAMP}}</nowiki>
| <code>{{CURRENTTIMESTAMP}}</code>
| '''[MW1.7+]''' [[w:en:ISO 8601|ISO 8601]] time stamp.
|}{{-}}

===Local time=== 
The time depending on the local timezone of the wiki (''not'' depending on the timezone in the user's preference settings). (All words '''[MW1.8+]''' )
{| class="wikitable" border="2" cellpadding="4" cellspacing="0" 
! Word 
! Example 
! Explanation
|-
| <nowiki>{{LOCALDAY}}</nowiki>
| <code>{{LOCALDAY}}</code>
| Displays the local day of the month in numeric form.
|-
| <nowiki>{{LOCALDAY2}}</nowiki>
| <code>{{LOCALDAY2}}</code>
| Same as <nowiki>{{LOCALDAY}}</nowiki>, but with a leading zero (01 .. 31).
|-
| <nowiki>{{LOCALDAYNAME}}</nowiki>
| <code>{{LOCALDAYNAME}}</code>
| Name of the day in the language of the project or English.
|-
| <nowiki>{{LOCALDOW}}</nowiki>
| <code>{{LOCALDOW}}</code>
| Same as <nowiki>{{LOCALDAYNAME}}</nowiki>, but as a number (0=Sunday, 1=Monday...).
|-
| <nowiki>{{LOCALMONTH}}</nowiki>
| <code>{{LOCALMONTH}}</code>
| The number 01 .. 12 of the month.
|-
| <nowiki>{{LOCALMONTHABBREV}}</nowiki>
| <code>{{LOCALMONTHABBREV}}</code>
| Same as <nowiki>{{LOCALMONTH}}</nowiki>, but in abbreviated form as Jan .. Dec.
|-
| <nowiki>{{LOCALMONTHNAME}}</nowiki>
| <code>{{LOCALMONTHNAME}}</code>
| Same as <nowiki>{{LOCALMONTH}}</nowiki>, but in named form as January .. December.
|-
| <nowiki>{{LOCALTIME}}</nowiki>
| <code>{{LOCALTIME}}</code>
| The local time (00:00 .. 23:59).
|-
| <nowiki>{{LOCALHOUR}}</nowiki>
| <code>{{LOCALHOUR}}</code>
| The local hour (00 .. 23).
|-
| <nowiki>{{LOCALWEEK}}</nowiki>
| <code>{{LOCALWEEK}}</code>
| Number of the local week (1-53) according to [[w:en:ISO 8601|ISO 8601]] with no leading zero.
|-
| <nowiki>{{LOCALYEAR}}</nowiki>
| <code>{{LOCALYEAR}}</code>
| Returns the local year.
|-
| <nowiki>{{LOCALTIMESTAMP}}</nowiki>
| <code>{{LOCALTIMESTAMP}}</code>
| [[w:en:ISO 8601|ISO 8601]] time stamp.
|}{{-}}

*See also:
**[[mw:Help:ParserFunctions|Help:ParserFunctions]] 
**{{tl|now}} for a [[w:W3C|W3C]] draft standard compliant date and time.

=== Statistics ===
Statistics variables give thousands separators unless ":R" for "raw" is added (actually, these versions are parser functions). When using these magic words in expressions, :R or |R is required. Without the :R or |R, an error will occur if the returned number is greater than 999 since the commas will interfere with the calculation.

{| class="wikitable" border="2" cellpadding="4" cellspacing="0" 
! Word 
! Example
! Explanation
|-
| <nowiki>{{CURRENTVERSION}}</nowiki>
| <code>{{CURRENTVERSION}}</code>
| '''[MW1.7+]''' {{h:mwg|Version}} [http://mail.wikipedia.org/pipermail/mediawiki-i18n/2006-May/000026.html]
|-
|<nowiki>{{NUMBEROFEDITS}}</nowiki><br /><nowiki>{{NUMBEROFEDITS:R}}</nowiki>
| <code>{{NUMBEROFEDITS}}</code><br /><code>{{NUMBEROFEDITS:R}}</code>
| '''[MW1.10+ (r21319)]''' Returns the total number of page edits since MediaWiki, the software that runs this site, was installed.
|-
| <nowiki>{{NUMBEROFARTICLES}}</nowiki><br /><nowiki>{{NUMBEROFARTICLES:R}}</nowiki>
| <code>{{NUMBEROFARTICLES}}</code><br /><code>{{NUMBEROFARTICLES:R}}</code>
| A [[Help:Variable|variable]] which returns the total number of articles on the Wiki. See [[mw:Manual:Article]] for information on what constitutes an article.
|-
| <nowiki>{{NUMBEROFPAGES}}</nowiki><br /><nowiki>{{NUMBEROFPAGES:R}}</nowiki>
| <code>{{NUMBEROFPAGES}}</code><br /><code>{{NUMBEROFPAGES:R}}</code>
| '''[MW1.7+]''' Returns the total number of pages. [http://mail.wikipedia.org/pipermail/mediawiki-i18n/2006-May/000026.html]
|-
| <nowiki>{{NUMBEROFFILES}}</nowiki><br /><nowiki>{{NUMBEROFFILES:R}}</nowiki>
| <code>{{NUMBEROFFILES}}</code><br /><code>{{NUMBEROFFILES:R}}</code>
| '''[MW1.5+]''' Returns the number of uploaded files (rows in the image table).
|-
| <nowiki>{{NUMBEROFUSERS}}</nowiki><br /><nowiki>{{NUMBEROFUSERS:R}}</nowiki>
| <code>{{NUMBEROFUSERS}}</code><br /><code>{{NUMBEROFUSERS:R}}</code>
| '''[MW1.7+]''' Returns the number of registered users (rows in the user table).
|-
| <nowiki>{{NUMBEROFACTIVEUSERS}}</nowiki><br /><nowiki>{{NUMBEROFACTIVEUSERS:R}}</nowiki>
| <code>{{NUMBEROFACTIVEUSERS}}</code><br /><code>{{NUMBEROFACTIVEUSERS:R}}</code>
| '''[MW1.15+]''' Returns the number of active users (registered users who have performed an action in the last 30 days).
|-
| <nowiki>{{NUMBEROFADMINS}}</nowiki><br /><nowiki>{{NUMBEROFADMINS:R}}</nowiki>
| <code>{{NUMBEROFADMINS}}</code><br /><code>{{NUMBEROFADMINS:R}}</code>
| '''[MW1.7+]''' Returns the number of administrators (users in the ''sysop'' group).
|-
| <nowiki>{{NUMBERINGROUP:groupname}}</nowiki><br /><nowiki>{{NUMBERINGROUP:groupname|R}}</nowiki>
| <nowiki>{{NUMBERINGROUP:bureaucrat}}</nowiki><br /><nowiki>{{NUMBERINGROUP:bureaucrat|R}}</nowiki><br />(returns {{NUMBERINGROUP:bureaucrat}})
| '''[MW1.14+]''' Returns the number of users in a specific group.
|-
| <nowiki>{{PAGESINNAMESPACE}}</nowiki>
| &#160;{{#if:{{#ifexpr:{{PAGEINNS:0|R}}}}|<font color="red">'''disabled here'''</font>}}
| Longer alias of PAGESINNS
|-
| <nowiki>{{PAGESINNS:ns}}</nowiki><br /><nowiki>{{PAGESINNS:ns|R}}</nowiki>
| <nowiki>{{PAGESINNS:2}}</nowiki>&#160;{{#if:{{#ifexpr:{{PAGEINNS:0|R}}}}||=&#160;<tt>{{PAGESINNS:2}}</tt>}}<br /><nowiki>{{PAGESINNS:2|R}}</nowiki>&#160;{{#if:{{#ifexpr:{{PAGEINNS:0|R}}}}|<br /><font color="red">'''disabled here'''</font>|=&#160;<tt>{{PAGESINNS:2|R}}</tt>}}
| '''[MW1.7+]''' Returns the number of pages in the given namespace. Disabled by default, enable with {{h:mwg|AllowSlowParserFunctions}}.
|}{{-}}

=== Page names and related info ===
{{H:Page name variables}}

===Other===
{| class="wikitable" border="2" cellpadding="4" cellspacing="0" 
! Word 
! Example 
! Example results
! Explanation
|-
| <nowiki>{{PAGESINCATEGORY:category}}</nowiki><br/><nowiki>{{PAGESINCATEGORY:category|R}}</nowiki>
| <code><nowiki>{{PAGESINCATEGORY:User en}}</nowiki></code><br/><code><nowiki>{{PAGESINCATEGORY:User en|R}}</nowiki></code>
| <code>{{PAGESINCATEGORY:User en}}</code><br/><code>{{PAGESINCATEGORY:User en|R}}</code>
| '''[MW1.13+, [[rev:32932|r32932]]]''' Returns the number of pages in a given category, including sub-category pages and file description pages. Does not count pages that are ''within'' subcategories.
|-
| <nowiki>{{PAGESINCAT:category}}</nowiki><br/><nowiki>{{PAGESINCAT:category|R}}</nowiki>
| <code><nowiki>{{PAGESINCAT:User en}}</nowiki></code><br/><code><nowiki>{{PAGESINCAT:User en|R}}</nowiki></code>
| <code>{{PAGESINCAT:User en}}</code><br/><code>{{PAGESINCAT:User en|R}}</code>
| '''[MW1.13+]''' Alias of PAGESINCATEGORY.
|-
| <nowiki>{{PAGESIZE:page}}</nowiki><br/><nowiki>{{PAGESIZE:page|R}}</nowiki>
| <code><nowiki>{{PAGESIZE:Help:Magic_words}}</nowiki></code><br/><code><nowiki>{{PAGESIZE:Help:Magic_words|R}}</nowiki></code>
| <code>{{PAGESIZE:Help:Magic_words}}</code><br/><code>{{PAGESIZE:Help:Magic_words|R}}</code>
| '''[MW1.13+ [[rev:33551|r33551]]]''' Returns the byte size of the specified page.
|-
| <nowiki>{{GENDER:username|TEXTIFMALE|TEXTIFFEMALE|TEXTIFUNSPECIFIED}}</nowiki>
| <code><nowiki>{{GENDER:Anonymous Dissident|he|she|it}}</nowiki></code>
| <code>{{GENDER:Anonymous Dissident|he|she|it}}</code>
| Returns an output dependant on a given user's gender, as set in the user's myprefs.
|}{{-}}

==Parser functions==

:''For details see [[Help:Parser function]].''

=== Namespaces and URLs ===
{| class="wikitable" border="2" cellpadding="4" cellspacing="0"
! Word 
! Example 
! Explanation
|-
| <nowiki>{{ns:}}</nowiki>
| <nowiki>{{ns:4}}</nowiki> = <code>{{ns:4}}</code><br /><nowiki>{{ns:project}}</nowiki> = <code>{{ns:project}}</code>
| Returns the local name of a given [[Help:Namespace|namespace number]].
|-
| <nowiki>{{localurl:x y @}}</nowiki><br /><nowiki>{{localurle:x y @}}</nowiki><br /><nowiki>{{localurl:a|b=c}}</nowiki><br /><nowiki>{{localurl:Wikipedia:Category}}</nowiki>
| <code>{{localurl:x y @}}<br />{{localurle:x y @}}<br />{{localurl:a|b=c}}<br />{{localurl:Wikipedia:Category}}</code>
| Returns the local URL of a page (might not exist). Optional ''query'' parameter, see [[Help:Variable]].
|- <!-- intentionally nbsp instead of sp for formatting reasons -->
| <nowiki>{{urlencode:x&#160;y&#160;@}}</nowiki>
| <code>{{urlencode:x y @}}</code>
| '''[MW1.7+]''' Encodes variable values for use in external links.  [http://svn.wikimedia.org/viewvc/mediawiki?view=rev&revision=14273]
|- <!-- intentionally nbsp instead of sp for formatting reasons -->
| <nowiki>{{anchorencode:x&#160;#y&#160;@}}</nowiki>
| <code>{{anchorencode:x #y @}}</code>
| '''[MW1.8+]''' Encodes variable values for use in section anchors. [http://svn.wikimedia.org/viewvc/mediawiki?view=rev&revision=16279]
|-
| <nowiki>{{fullurl:x y @}}</nowiki><br /><nowiki>{{fullurle:x y @}}</nowiki><br /><nowiki>{{fullurl:m:a|b=c}}</nowiki>
| <small>{{fullurl:x y @}}<br />{{fullurle:x y @}}<br />{{fullurl:m:a|b=c}}</small>
| '''[MW1.5+]''' Returns the full URL of a given page. Optional ''query'' parameter as for <tt>localurl:</tt>.
|-
| <nowiki>{{filepath:</nowiki>''file name''<nowiki>}}</nowiki><br /><nowiki>{{filepath:file name|nowiki}}</nowiki>
| {{filepath:Wiki.png}}<br />{{filepath:Wiki.png|nowiki}}
| '''[MW1.?+ r25854+]''' Returns the absolute path to image or media file.
|}{{-}}

=== Formatting ===
{| class="wikitable" border="2" cellpadding="4" cellspacing="0" width="100%"
! Word 
! Example 
! Explanation
|-
| <nowiki>{{#language:}}</nowiki> 
| <nowiki>{{#language:da}}</nowiki> = <code>{{#language:da}}</code>
| '''[MW1.7+]''' Native name of language code.
|-
| <nowiki>{{#special:}}</nowiki> 
| <nowiki>{{#special:userlogin}}</nowiki> = <code>{{#special:userlogin}}</code>
| '''[MW1.? r17321+]''' Local name of canonical Special: page.
|-
| <nowiki>{{lc:}}</nowiki>
| <nowiki>{{lc:AbC dEf}}</nowiki> = <code>{{lc:AbC dEf}}</code>
| '''[MW1.5+]''' LowerCase
|-
| <nowiki>{{lcfirst:}}</nowiki>
| <nowiki>{{lcfirst:Ab Cd}}</nowiki> = <code>{{lcfirst:Ab Cd}}</code>
| '''[MW1.5+]''' LowerCase first char.
|-
| <nowiki>{{uc:}}</nowiki>
| <nowiki>{{uc:aBc DeF}}</nowiki> = <code>{{uc:aBc DeF}}</code>
| '''[MW1.5+]''' UpperCase
|-
| <nowiki>{{ucfirst:}}</nowiki>
| <nowiki>{{ucfirst:aB cD}}</nowiki> = <code>{{ucfirst:aB cD}}</code>
| '''[MW1.5+]''' UpperCase first char.
|-
| <nowiki>{{formatnum:}}</nowiki>
| <nowiki>{{formatnum:-299792458.56789}}</nowiki> = <code>{{formatnum:-299792458.56789}}</code>
<br> <nowiki>{{formatnum:-299,792,458.56789|R}}</nowiki> = <code>{{formatnum:-299,792,458.56789|R}}</code>
| '''[MW1.7+]''' Changes the [[w:Decimal_separator|decimal separator]] and adds digit group  separators (before the decimal separator only) according to the wiki's default locale. Also changes the digits into the local script. Leading minus and plus are recognized. 

'''[MW1.13+]''' Can be reversed with an ''R'' parameter.
|-
|<nowiki>{{padleft:}}</nowiki><br /><br /><br /><br /><br /><nowiki>{{padright:}}</nowiki><br />
| 
<nowiki>{{padleft:7|3|0}}</nowiki> = <code>{{padleft:7|3|0}}</code><br/><br/>
<nowiki>{{padleft:0|3|0}}</nowiki> = <code>{{padleft:0|3|0}}</code><br/><br/>
<nowiki>{{padleft:bcd|6|a}}</nowiki> = <code>{{padleft:bcd|6|a}}</code><br/>
<nowiki>{{padleft:cafe|8|-}}</nowiki> = <code>{{padleft:cafe|8|-}}</code><br />

<nowiki>{{padleft:bcd|6|{{!}}}}</nowiki> = <code>{{padleft:bcd|6|{{!}}}}</code><br/>
<br/>
<nowiki>{{padright:bcd|6|a}}</nowiki> = <code>{{padright:bcd|6|a}}</code><br />
<nowiki>{{padright:0|6|a}}</nowiki> = <code>{{padright:0|6|a}}</code><br />

|valign="top"|<br />First case is, for example, applicable to years in a category... giving an ordered year to sort by pipetricks order, or any such ordering where left extended zeros allow a proper sorting.<br /><br /> '''[MW1.8+]''' Pads a string with a character to the specified width. Note that there's a little bug that interprets non-[[w:US-ASCII|US-ASCII]] characters as two, instead of one character (see the difference in''' ''café'' and ''cafe'' '''in the examples.)

It does not seem possible to use padleft and padright for padding with characters with a multi-character code, such as <code>&amp;nbsp;</code>, which would be useful with padleft for [[Help:Sorting|sorting tables]] with Javascript.

Also, giving a non-ASCII character as a character to replicate results in a "?" character. [[bugzilla:12324]]

<!--
Padding "0" does not work, it returns the same. This seems to be a bug.<ref>Function pad in includes/CoreParserFunctions.php puts, oddly, the $string itself as a condition for the padding. To be reported as bug.</ref>
-->
|-
| <nowiki>{{#tag:}}</nowiki> 
| <nowiki>{{#tag:myextension | content | attr=val | attr2=val2 }}</nowiki> = <nowiki><myextension attr=val attr2=val2>content</myextension></nowiki>
| '''[MW1.12+, r29482]''' Passes attributes and inner content to an XML-style parser tag, parsing template variables along the way. See [[MediaZilla:2257|Bug 2257]] and [[MW:Extension:TagParser|Extension:TagParser]].
|}{{-}}

With regard to #language and {{tim|n local}}, see also:
*[[List of Wikipedias/local names]] - shows both names for all languages, without automatic comparison
*[[List of Wikipedias/local names/diff]] - values of [[Help:Magic words#Formatting|#language]] for which <nowiki>{{n local}}</nowiki> contains a different name. 
*[[List of Wikipedias/local names/diff 1]] - for languages where the two names are different, shows both

Note: An alternative of LC and UC, for display only (not for further processing) is with CSS:

*{{xpdplain|<|span style{{=}}"text-transform: lowercase">aBc deF<|/span>}}
*{{xpdplain|<|span style{{=}}"text-transform: uppercase">aBc deF<|/span>}}

Capitalizing the first letter of each word:
*{{xpdplain|<|span style{{=}}"text-transform: capitalize">aBc deF<|/span>}}

== Template modifiers ==
{| class="wikitable" border="2" cellpadding="4" cellspacing="0" 
! Usage 
! Explanation
|-
| <nowiki>{{:xyz}}</nowiki>
| A bare colon is not a template modifier, it's the prefix for the main namespace. Test e.g. article {&#123;:UTC&#125;} vs. template {&#123;UTC&#125;}.<br>Using this syntax you include the text of the main namespace article xyz in another article.
|-
| <nowiki>{{int:xyz}}</nowiki>
| Same as <nowiki>{{MediaWiki:xyz}}</nowiki>, except standard message translation is applied depending on subpages and content/user/uselang language. Another difference is: this doesn't appear under "{{int:templatesused}}". Rendered as {{int:xyz}} if [[MediaWiki:xyz]] doesn't exist. See also [[Help:System message]].
|-
| <nowiki>{{msg:xyz}}</nowiki>
| Even if there is a magic word named "xyz", use template:xyz unless the template doesn't exist (equivalent to <nowiki>{{template:xyz}}</nowiki>). Normally, magic words have priority when there is a conflict.
|-
| <nowiki>{{msgnw:xyz}}</nowiki>
| The unexpanded wikitext is rendered (more or less, for details see [[Help:Template#msgnw|msgnw]]).
|-
| <nowiki>{{raw:xyz}}</nowiki>
| '''[MW1.6+]''' Equivalent to <code><nowiki>{{msg:xyz}}</nowiki></code> above<ref>[http://svn.wikimedia.org/viewvc/mediawiki?view=rev&revision=12925 Wikimedia SVN revision 12925]</ref>.
|-
| <nowiki>{{subst:xyz}}</nowiki>



| In the wikitext, the tag is substituted by the ''content'' (single-level evaluation only), see [[Help:Substitution]].
|}{{-}}

== Image modifiers ==
:''For details see [[w:en:Wikipedia:Extended image syntax]].''
These are [[Help:Image page|image]] modifiers used in <code><nowiki>[[Image:title.ext|modifier|...|modifier]]</nowiki></code> links. Some are mutually exclusive, and then the last specified wins.  The last unrecognized modifier is used as '''caption''' for [[w:framed image|''framed'' images]] or together with ''[[w:thumbnail|thumbnail]]''s. It's also used as description <tt>alt=</tt>''text''.

=== Size ===
{| class="wikitable" border="2" cellpadding="4" cellspacing="0" 
! Word 
! Usage 
! Explanation
|-
| framed<br/>frame<br/>enframed
| <nowiki>[[Image:Mediawiki.png|framed]]</nowiki>
| Places an image in a ''frame'' with a description. Uses original size and stubbornly ignores width parameter if given.<br>In general, far better to use thumb, as is only suitable for small images.
|-
| border
| <nowiki>[[Image:Mediawiki.png|border]]</nowiki>
| Shows a 1px border around the image.
|-
| thumbnail<br/>thumb
| <nowiki>[[Image:Mediawiki.png|thumbnail]]</nowiki>
| Modifies image size, sets it dependent on user's favorite thumbnail size in one's preferences, or on the given width parameter (see below).
|-
| thumb=''xyz''
| <nowiki>[[Image:Mediawiki.png|thumb=Wiki.png]]</nowiki>
| Manualthumb: instead of displaying an automatically-sized thumbnail for <var>Mediawiki.png</var>, display the image <var>Wiki.png</var>.
|-valign="top"
| ''width'' px<br>100x200px
| <nowiki>[[Image:Mediawiki.png|40px]]</nowiki><br><nowiki>[[Image:Mediawiki.png|100x200px]]</nowiki>
| Scales image to given ''width''&#160; in pixels<br>Scales image to no more than 100 pixels wide and no more than 200 high, but image scaled to retain its true aspect ratio within the boundary specified.
|}{{-}}

=== Position ===
:''For details see [[Help:Images and other uploaded files]]''
The positions are mutually exclusive; the last specified wins. [[:Template:-]] can stop floating. For inline images only modifier ''px'' (see above) is supported.
{| class="wikitable" border="2" cellpadding="4" cellspacing="0" width="100%"
! Word 
! Usage 
! Explanation
|-
| right
| <nowiki>[[Image:Mediawiki.png|right]]</nowiki>
| Modifies position, floats the image to the right.
|-
| <nowiki>left</nowiki>
| <nowiki>[[Image:Mediawiki.png|left]]</nowiki>
| Modifies position, floats the image to the left.
|-
| <nowiki>none</nowiki>
| <nowiki>[[Image:Mediawiki.png|none]]</nowiki>
| Explicitly states that the image should not float.
|-
| center<br />centre
| <nowiki>[[Image:Mediawiki.png|center]]</nowiki>
| Modifies position, like ''none'' but centered. 
|}{{-}}

== Miscellany ==

{| class="wikitable" border="2" cellpadding="4" cellspacing="0" 
! Word 
! Example
! Explanation
|-
| <nowiki>{{DISPLAYTITLE:</nowiki>''xyz''<nowiki>}}</nowiki>
| ''no inline output''
| '''[MW 1.7+]''' Modify the page's title [http://svn.wikimedia.org/viewvc/mediawiki?view=rev&revision=13572], enabled in Wikimedia projects since June 2007 ([http://svn.wikimedia.org/viewvc/mediawiki?view=rev&revision=23393]). Also see {{h:mwg|AllowDisplayTitle}}.
|-
| <nowiki>{{DIRMARK}}</nowiki><br /><nowiki>{{DIRECTIONMARK}}</nowiki>
| <code>{{DIRMARK}}</code><br /><code>{{DIRECTIONMARK}}</code>
| '''[MW1.7+]''' u+200E left to right or u+200D right to left mark
|-
| <nowiki>{{CONTENTLANGUAGE}}</nowiki>
| <code>{{CONTENTLANGUAGE}}</code>
| '''[MW1.7+]''' code of the site's default interface language ({{h:mwg|LanguageCode}})
|-
| <nowiki>{{DEFAULTSORT:xyz}}</nowiki>
| ''no inline output''
| '''[MW1.10+]''' Sets a default [[Help:Categories#Sort_key|category sort key]] for the whole current page (also applying for category tags before this tag)<ref>"[[w:Wikipedia:Wikipedia Signpost/2007-01-02/Technology report|Technology report]]", en-Wikipedia Signpost, January 2007</ref>.
|-
| <nowiki>#REDIRECT</nowiki> 
| <code>#REDIRECT&#160;[&#91;target&#93;]</code><br />at top of source page
| Creates a [[Help:Redirect|redirect]] to another page (to the target page).
|}{{-}}

Despite its name <tt>MAGICNUMBER</tt> is no magic word, the [[m:Help:ISBN links|ISBN]] magic works only on the [[{{ns:4}}:{{int:Booksources}}|{{ns:8}}:Booksources]] page used by [[Special:Booksources]], but talking about <tt><nowiki>[[{{ns:4}}:{{int:Booksources}}|{{ns:8}}:Booksources]]</nowiki></tt> in a way working on any MediaWiki installation is esoteric enough to be noted here.

===Language-dependent word conversions===
{| class="wikitable" border="2" cellpadding="4" cellspacing="0" 
! Word 
! Example 
! Explanation
|-
| <nowiki>{{CURRENTMONTHNAMEGEN}}</nowiki>
| <code>{{CURRENTMONTHNAMEGEN}}</code>
| [[w:genitive case|Genitive form]] of month name used for Czech, Polish, Ukrainian[http://svn.wikimedia.org/svnroot/mediawiki/trunk/phase3/languages/]
|-
| <nowiki>{{LOCALMONTHNAMEGEN}}</nowiki>
| <code>{{LOCALMONTHNAMEGEN}}</code>
| [[w:genitive case|Genitive form]] of month name used for Czech, Polish, Ukrainian (local time)
|-
| {&#123;grammar:''case &#124; word'' &#125;} 
| <nowiki>{{grammar:7sg|Wikipedie}}</nowiki><br />on [[:cs:]] is <code>Wikipedií</code>.
| Derived word forms in inflected languages like [[:cs:|Czech]] [http://svn.wikimedia.org/svnroot/mediawiki/trunk/phase3/languages/classes/LanguageCs.php]
|-
| {&#123;plural:''count &#124;form1 &#124;form2'' &#125;}<br />{&#123;plural:''count&#160;&#124;1st&#160;&#124;&#160;2nd&#160;&#124;&#160;3rd&#160;''&#125;} 
| <nowiki>{{plural: 2 | is | are }}</nowiki><br />outputs <code>{{plural: 2 | is |are }}</code><br /><nowiki>{{plural: 1 | this | these }}</nowiki><br />outputs <code>{{plural: 1 |this | these }}</code><br /><nowiki>{{plural: 0 | his | their }}</nowiki><br />outputs <code>{{plural: 0 |his | their }}</code>
| ''count'' '''1''' yields ''form1'' (singular), [[w:Plural|plural]] transformations are used for languages like [[:ru:|Russian]] [http://svn.wikimedia.org/svnroot/mediawiki/trunk/phase3/languages/classes/LanguageRu.php] based on "count mod 10".
|}{{-}}

"Grammar" and "Plural" are language-dependent functions, defined in [http://svn.wikimedia.org/svnroot/mediawiki/trunk/phase3/languages/classes/LanguageCs.php], [http://svn.wikimedia.org/svnroot/mediawiki/trunk/phase3/languages/classes/LanguageRu.php], etc. (note that in PHP, the modulo operator is the percent sign).

"Grammar" can either be applied to predefined words only, or to arbitrary words, depending on whether the definition is just a 2D array, or involves string manipulations. See also [[:cs:Šablona:Wikivar/GRAMMAR]].

"Plural" is a site-language-dependent switch function, controlled by function convertPlural in Language.php (which distinguishes between 1 and "not 1"), for some languages overridden in Languagexx.php, e.g. for French (which distinguishes between <=1 and >1) and Russian, which uses a grammar case for amounts ending in 1 (1, 21, 31,...), another case for amounts ending in 2 to 4 (2, 3, 4, 22, 23, 24, ...) and still another case for the remaining quantities.

As opposed to [[ParserFunctions]], "plural" accepts points and commas in numbers and interprets them in a site-language-specific way (depending on $separatorTransformTable in Messagesxx.php); on this site:
*<nowiki>{{plural:1.000|a|b|c}}</nowiki> gives {{plural:1.000|a|b|c}}
*<nowiki>{{plural:1,000|a|b|c}}</nowiki> gives {{plural:1,000|a|b|c}}

(on e.g. the German and the Dutch sites reversed w.r.t. the result on English sites).

"Plural" is used in various system messages, e.g. {{msg|nmembers}}, where it uses interface language instead of site language.

===See also===
*[[mw:Help:Extension:ParserFunctions|ParserFunctions]] '''#expr:''', '''#if:''', '''#ifeq:''', etc.
*[[mw:Manual:Magic words]]
*[http://svn.wikimedia.org/svnroot/mediawiki/trunk/phase3/languages/Language.php Source for Language.php]
*[http://svn.wikimedia.org/svnroot/mediawiki/trunk/phase3/includes/MagicWord.php Source for MagicWord.php]
*[[m:Extending_wiki_markup#Parser_functions|Adding parser functions]]
*[[mw:Extension:Variables]] '': adding new magic words like <nowiki>{{CURRENTUSER}}</nowiki>''

==Notes and references==
<div style="font-size:0.9em;"><references/></div>
{{H:f|enname=Magic words}}