Microweber\Utils\Import::import_file PHP Метод

    public function import_file($filename)
    {
        only_admin_access();
        if (!is_file($filename)) {
            return array('error' => 'You have not provided a existing backup to restore.');
        }
        $ext = get_file_extension($filename);
        $import_method = strtolower('queue_import_' . $ext);
        if (method_exists($this, $import_method)) {
            ini_set('memory_limit', '512M');
            set_time_limit(900);
            return $this->{$import_method}($filename);
        } else {
            return array('error' => "Cannot find method for importing {$ext} files.");
        }
    }