FluidXml\FluidInsertionHandler::insertElement PHP Méthode

    public function insertElement(&$nodes, $element, &$optionals, $fn, $orig_context)
    {
        list($element, $attributes, $switch_context) = $this->handleOptionals($element, $optionals);
        $new_nodes = [];
        foreach ($nodes as $n) {
            foreach ($element as $k => $v) {
                $cx = $this->handleInsertion($n, $k, $v, $fn, $optionals);
                $new_nodes = \array_merge($new_nodes, $cx);
            }
        }
        $new_context = $this->newContext($new_nodes);
        // Setting the attributes is an help that the addChild method
        // offers to the user and is the same of:
        // 1. appending a child switching the context
        // 2. setting the attributes over the new context.
        if (!empty($attributes)) {
            $new_context->setAttribute($attributes);
        }
        return $switch_context ? $new_context : $orig_context;
    }