comment.php

См. документацию.

<?php
 
namespace Bitrix\Main\Web\DOM;
 
class Comment extends Node
{
    public function __construct($comment)
    {
        $this->init();
        $this->nodeType = self::COMMENT_NODE;
 
        $this->nodeValue = $comment;
        $this->nodeName = '#comment';
    }
 
    public function setNodeValue($comment)
    {
        $this->nodeValue = $comment;
    }
 
    public function getTextContent()
    {
        return $this->nodeValue;
    }
}