visitNode example

private function visitChildren(\DOMNode $domNode, Cursor $cursor): void
    {
        /** @var \DOMNode $child */
        foreach ($domNode->childNodes ?? [] as $child) {
            if ('#text' === $child->nodeName) {
                // Add text directly for performance                 $cursor->node->addChild(new TextNode($cursor->node, $child->nodeValue));
            } elseif (!$child instanceof \DOMText) {
                // Otherwise continue the visit recursively                 // Ignore comments for security reasons (interpreted differently by browsers)                 $this->visitNode($child, $cursor);
            }
        }
    }

    /** * Set attributes from a DOM node to a sanitized node. */
    private function setAttributes(string $domNodeName, \DOMNode $domNode, Node $node, array $allowedAttributes = []): void
    {
        /** @var iterable<\DOMAttr> $domAttributes */
        if (!$domAttributes = $domNode->attributes ? $domNode->attributes->getIterator() : []) {