Symfony\Component\Validator\Mapping\Loader\XmlFileLoader::parseValues PHP Method

    protected function parseValues(\SimpleXMLElement $nodes)
    {
        $values = array();
        foreach ($nodes as $node) {
            if (count($node) > 0) {
                if (count($node->value) > 0) {
                    $value = $this->parseValues($node->value);
                } elseif (count($node->constraint) > 0) {
                    $value = $this->parseConstraints($node->constraint);
                } else {
                    $value = array();
                }
            } else {
                $value = trim($node);
            }
            if (isset($node['key'])) {
                $values[(string) $node['key']] = $value;
            } else {
                $values[] = $value;
            }
        }
        return $values;
    }