lithium\action\Request::_parseFiles PHP Method

    protected function _parseFiles($data)
    {
        $result = array();
        $normalize = function ($key, $value) use($result, &$normalize) {
            foreach ($value as $param => $content) {
                foreach ($content as $num => $val) {
                    if (is_numeric($num)) {
                        $result[$key][$num][$param] = $val;
                        continue;
                    }
                    if (is_array($val)) {
                        foreach ($val as $next => $one) {
                            $result[$key][$num][$next][$param] = $one;
                        }
                        continue;
                    }
                    $result[$key][$num][$param] = $val;
                }
            }
            return $result;
        };
        foreach ($data as $key => $value) {
            if (isset($value['name'])) {
                if (is_string($value['name'])) {
                    $result[$key] = $value;
                    continue;
                }
                if (is_array($value['name'])) {
                    $result += $normalize($key, $value);
                }
            }
        }
        return $result;
    }