The Template 
plugin allows to include text from a wiki page and replace certain placeholders by parameters.
A template can be seen as a parametrized block. It is similiar to CreatePage with the template argument, but at run-time.
There are two syntaxes to call a template, the usual Phpwiki syntax for plugins, and a more concise syntax similar to Mediawiki templates.
Usage
Without parameters
Plugin syntax:
<<Template page=Footer>>
Short syntax:
{{Footer}}
With parameters
Plugin syntax:
<<Template page=Film vars="title=SomeFilm&year=1999">>
Short syntax:
{{Film|title=SomeFilm|year=1999}}
With a specific revision of the page
Plugin syntax:
<<Template page=somepage rev=5>>
Short syntax:
{{somepage?version=5}}
Arguments
Page to include
If "Template:$page" exists, it is used.
Else, if "Template/$page" exists, it is used.
Else "$page" is used.
This allows compatibility with Mediawiki that puts templates in the "Template:" namespace.
Parameter expansion
We only support named parameters, not numbered ones as in Mediawiki, and the placeholder is %%var%% and not {{{var}}} as in Mediawiki.
vars="var1=value1&var2=value2"
The following predefined variables are automatically expanded if existing:
Inclusion
<noinclude> .. </noinclude> is stripped.
<includeonly> .. </includeonly> is only expanded in pages using the template, not in the template itself.