public static function cronParse($expression = '* * *')
{
    $exps = explode(' ', $expression);
    $d    = [date('i'), date('H'), date('d'), date('m'), date('w')];
    $exps = array_slice($exps, 0, count($d));
    foreach ($exps as $k => $exp) {
        $exp = explode('/', $exp);
        if (count($exp) > 1 and $d[$k] % $exp[1] != 0) {
            return false;
        }
        if ($exp[0] != '*' and !in_array($d[$k], explode(',', $exp[0]))) {
            return false;
        }
    }
    return true;
}