use template variables in snippet

i set up a template variable

How can I access this in the php of a snippet?

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http://modxcms.com/gettemplatevar.html
http://modxcms.com/gettemplatevaroutput.html
http://modxcms.com/gettemplatevars.html

so if i have a template variable named page

$page=getTemplateVar($page);

is this correct?

when I try doing I get

Fatal error: Call to undefined function getTemplateVar()

Those functions are part of the MODx DocumentParser class, a.k.a. $modx

will process the template variable in the context of the document the snippet is being executed on, and return an array of the processed output that can be accessed as

This is because it supports retrieving and processing multiple tv’s at a time, which is also the reason why the initial parameter accepts an array of tv names (or the string ’*’ for all).