is not included if ($this->parentNode->namespaceURI === null && in_array($this->parentNode->nodeName, ['style', 'script', 'xmp', 'iframe', 'noembed', 'noframes', 'plaintext'])) { return $this->data; } # Otherwise, append the value of current node’s data IDL attribute, escaped as # described below. return $this->escapeString($this->data); } }