private function _parseRichText($is = null) 
    {
        $value = array();

        if (isset($is->t)) {
            $value[] = (string)$is->t;
        } else {
            foreach ($is->r as $run) {
                $value[] = (string)$run->t;
            }
        }

        return implode('', $value);
    }
private function _parseRichText($is = null) 
    {
        $value = array();

        if (isset($is->t)) {
            $value[] = (string)$is->t;
        } else {
            foreach ($is->r as $run) {
                $value[] = (string)$run->t;
            }
        }

        return implode('', $value);
    }
private function _parseRichText ( $ is = null ) { $ value = array ( ) ; if ( isset ( $ is -> t ) ) { $ value [ ] = ( string ) $ is -> t ; } else { foreach ( $ is -> r as $ run ) { $ value [ ] = ( string ) $ run -> t ; } } return implode ( '' , $ value ) ; }
Parse rich text XML

@param  SimpleXMLElement $is
@return string
Parse rich text XML