/**
* Overwrites parent::_isset method to enable access
* to content:encoded element.
*
* @param string $var
* @return boolean
*/
public function __isset($var)
{
switch ($var) {
case 'content':
// don't use other callback to prevent invalid returned value
return $this->content() !== null;
default:
return parent::__isset($var);
}
}
