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{{PD Help Page}}

{{PD Help Page}}

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'''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 {{ll|Manual:Magic words}}.

 

 

There are three general types of magic words:

There are three general types of magic words:

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* '''[[#Behavior switches|Behavior switches]]''': these are usually written as uppercase words surrounded by double underscores, ''e.g.'' '''<code>__FOO__</code>'''.

* '''[[<tvar|var>#Variables</>|Variables]]''': these are uppercase words surrounded by double braces, ''e.g.'' '''<code><nowiki>{{FOO}}</nowiki></code>'''. As such, they look a lot like [[<tvar|help-templates>Special:MyLanguage/Help:Templates</>|templates]].

 

 

* '''[[#Variables|Variables]]''': these are uppercase words surrounded by double braces, ''e.g.'' '''<code><nowiki>{{FOO}}</nowiki></code>'''. As such, they look a lot like [[Special:MyLanguage/Help:Templates|templates]].

 

* '''[[#Parser functions|Parser functions]]''': these take parameters and are either of the form'''<code><nowiki>{{foo:...}}</nowiki></code>''' '''<code><nowiki>{{#foo:...}}</nowiki></code>''', e.g. <code><nowiki>{{#invoke:}}</nowiki></code>. See also {{ll|Help:Extension:ParserFunctions}} and {{ll|Extension:Scribunto}}</>.

* '''[[<tvar|pfunc>#Parser functions</>|Parser functions]]''': these take parameters and are either of the form <tvar|1>'''<code><nowiki>{{foo:...}}</nowiki></code>'''</> or <tvar|2>'''<code><nowiki>{{#foo:...}}</nowiki></code>'''</>, e.g. <tvar|3><code><nowiki>{{#invoke:}}</nowiki></code></>. See also <tvar|help-ext-parser-functions>{{ll|Help:Extension:ParserFunctions}}</> and <tvar|4>{{ll|Extension:Scribunto}}</>.

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Variables and parser functions can use [[<tvar|manual-subst>Special:MyLanguage/Manual:subst</>|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.

Variables and parser functions can use [[Special:MyLanguage/Manual:subst|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.

{{anchor|Behavior switches}}

{{anchor|Behavior switches}}