[Link14716]

It's just a name.

The code used to parse the template

PHP Code:

eval('$not_sure_what_this_is .= "' . fetch_template('MY_TEMPLATE') . '";'); 


does not print anything. It assigns the output to the $not_sure_what_this_is variable for future use. When the final template is called (which uses different code) it parses all the variables in it. Therefore, putting $not_sure_what_this_is in the final template or any template which comes after $not_sure_what_this_is is defined will make it appear where you put the variable.