How to use config variables in calendar/lib.php script in moodle 2.8
<p>I am using moodle version 2.8</p>

<p>I want to use config variable in calendar/lib.php script</p>

<p>So how can I achieve this. Basically config.php is not included in calendar/lib.php script and I tried to </p>

<p>include it using "require_once('../config.php');", Showing blank page.</p>