Template:Compare pages/doc

Similar to the {{Diff}} template, this template is intended to be useful for creating links to "diffs"; that is, links to pages that show the differences between two versions of a wiki page. The major difference is that {{Diff}} is intended to show two versions of the same page, and this one creates a link to Special:ComparePages to show one version of two different pages.

Every version of a page has a revision ID, which you can find from the history of the page by looking at the link for the timestamp, which is of the form:

https://en.wikipedia.org/w/index.php?title=SomePageName&oldid=442212827

The number after oldid= is the revision ID.

Given a page name and one or two revision IDs, you can construct links to several types of diffs.

Usage

{{Compare pages|page or oldid for page 1|page or oldid for page 2}}

• page – The title of the page.
• oldid – The revision ID onto which the diff is generated.

All parameters are required. Omitting parameters will return an error.

Examples

Code	Output
{{Compare pages|Foo|Bar}}	compare Foo to Bar This is the form that would be used most often.
{{Compare pages|Foo|Bar|Difference between pages}}	Difference between pages
{{Compare pages|Foo}}
{{Compare pages||Bar}}

See also

• {{Oldid}} – simplifies the case for linking to a known old version
• {{Diff}}
• {{Diff2}}
• {{Querylink}} – generic template to construct query strings
• diff utility – syntax highlight on wiki pages with mw:Extension:SyntaxHighlight GeSHi
• Special:ComparePages