private static function loadFiles()
{
if (self::$_files === null) {
self::$_files = [];
if (isset($_FILES) && is_array($_FILES)) {
foreach ($_FILES as $class => $info) {
self::loadFilesRecursive($class, $info['name'], $info['tmp_name'], $info['type'], $info['size'], $info['error']);
}
}
}
return self::$_files;
}