private static function pluginFolderPaths($plugins, $folder_path)
    {
        $paths = [];

        foreach ($plugins as $path) {
            $iterator = new \DirectoryIterator($path);

            /** @var \DirectoryIterator $directory */
            foreach ($iterator as $directory) {
                if (!$directory->isDir() || $directory->isDot()) {
                    continue;
                }

                // Path to the languages folder
                $lang_path = $directory->getPathName() . '/' . $folder_path;

                // If this folder exists, add it to the list of paths
                if (file_exists($lang_path)) {
                    $paths []= $lang_path;
                }
            }
        }
        return $paths;
    }