php_parser.php
public function addContent($text)
    {
        if (isset($this->private_content_tag)) {
            $this->private_content_tag->addContent($text);
        } else {
            $this->addContentToAllOpenTags($text);
        }

        return true;
    }
public function addContent($text)
    {
        if (isset($this->private_content_tag)) {
            $this->private_content_tag->addContent($text);
        } else {
            $this->addContentToAllOpenTags($text);
        }

        return true;
    }
Unparsed, but relevant data. The data is added to every open tag.

@param string $text        May include unparsed tags.

@return bool            False on parse error.