Xtreamwayz\HTMLFormValidator\FormFactory::setMessages PHP Method

    private function setMessages(array $data)
    {
        foreach ($data as $name => $errors) {
            // Not sure if this can be optimized and create the DOMXPath only once.
            // At this point the dom is constantly changing.
            $xpath = new DOMXPath($this->document);
            // Get all elements with the name
            $nodeList = $xpath->query(sprintf('//*[@name="%1$s"] | //*[@data-input-name="%1$s"]', $name));
            if ($nodeList->length === 0) {
                // No element found for this element ???
                continue;
            }
            // Get first element only
            $node = $nodeList->item(0);
            /** @var DOMElement $parent */
            $parent = $node->parentNode;
            if (strpos($parent->getAttribute('class'), $this->errorClass) === false) {
                // Set error class to parent
                $class = trim($parent->getAttribute('class') . ' ' . $this->errorClass);
                $parent->setAttribute('class', $class);
            }
            // Inject error messages
            foreach ($errors as $code => $message) {
                $div = $this->document->createElement('div');
                $div->setAttribute('class', 'text-danger');
                $div->nodeValue = $message;
                $node->parentNode->insertBefore($div, $node->nextSibling);
            }
            /** @var DOMElement $node */
            foreach ($nodeList as $node) {
                // Set aria-invalid attribute on all elements
                $node->setAttribute('aria-invalid', 'true');
            }
        }
    }