Help:Variables

Variables are a type of Magic words a strings of text that Wiki software associates with a return value or function. There are three general types of magic words:

• Variables: these are uppercase words surrounded by double braces, e.g. {{FOO}}. As such, they look a lot like templates. Note that templates use pre set parameters, that are parsed and cashed once you save the page, not each time you load it.
• Behavior switches: these are uppercase words surrounded by double underscores, e.g. __FOO__ used for adjusting the layout or behavior of the page and can often be used to specify desired omissions and inclusions in the content.
• Parser functions: very similar to variables, but take one or more parameters. See also Help:Extension:ParserFunctions which offers great functionality for constructing advance templates.

Here are some useful magic words, for a full list see Help:Magic words

Word	Description
__NOTOC__	Hides the table of contents (TOC).
__FORCETOC__	Forces the table of content to appear at its normal position (above the first header).
__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. It is possible to suppress the auto-generated section numbers, if the proper class exists locally at MediaWiki:Common.css, defined as .tocnumber { display: none; }.

Variable	Output	Description
{{FULLPAGENAME}}	Help:Variables	Namespace and page title.
{{PAGENAME}}	Variables	Page title.
{{BASEPAGENAME}}	Variables	Page title excluding the current subpage and namespace ("Title/foo" on "Title/foo/bar"). For more complex splitting, use {{#titleparts}} from ParserFunctions extension.
{{SUBPAGENAME}}	Variables	The subpage title ("foo" on "Title/foo").
{{SUBJECTPAGENAME}}	Help:Variables	The namespace and title of the associated subject page.
{{TALKPAGENAME}}	Help talk:Variables	The namespace and title of the associated talk page.