I am trying to echo the content of the below code within a Zend Framework module (index.tpl)

I can't figure out the right format to make it work. Anyone have any suggestions?

Code:
<?php echo(envapi_get_html_for_reg_user(API KEY, '$this->translate($this->viewer()->username)','','', false));    ?>

It echos results from a included file in the controller.php file:
Code:
require_once 'envolve_api_client.php';