. * */ namespace Vvveb\System; class Cron { private static $crons; public static function getInstance() { static $inst = null; if ($inst === null) { $inst = new Cron(); } return $inst; } public function __construct() { } public static function getCrons() { return self :: $crons; } public static function runAll() { } public static function run($cron) { return []; } public static function registerCron($cron, $class, $description) { self :: $crons[$cron] = $class; return true; } }