public function cmd_retire() { if (\System\Settings::get('dev', 'debug', 'backend') || \System\Settings::get('dev', 'disable', 'serial')) { return; } $serial = \System\Settings::get('cache', 'resource', 'serial'); \System\Settings::set(array('cache', 'resource', 'serial'), $serial + 1); \System\Settings::save('cache'); }