Resque\Helpers\Util::human_time_diff PHP Method

    public static function human_time_diff($from, $to = null)
    {
        $to = $to ?: time();
        $diff = (int) abs($to - $from);
        if ($diff < self::MINUTE_IN_SECONDS) {
            $since = array($diff, 'sec');
        } elseif ($diff < self::HOUR_IN_SECONDS) {
            $since = array(round($diff / self::MINUTE_IN_SECONDS), 'min');
        } elseif ($diff < self::DAY_IN_SECONDS and $diff >= self::HOUR_IN_SECONDS) {
            $since = array(round($diff / self::HOUR_IN_SECONDS), 'hour');
        } elseif ($diff < self::WEEK_IN_SECONDS and $diff >= self::DAY_IN_SECONDS) {
            $since = array(round($diff / self::DAY_IN_SECONDS), 'day');
        } elseif ($diff < 30 * self::DAY_IN_SECONDS and $diff >= self::WEEK_IN_SECONDS) {
            $since = array(round($diff / self::WEEK_IN_SECONDS), 'week');
        } elseif ($diff < self::YEAR_IN_SECONDS and $diff >= 30 * self::DAY_IN_SECONDS) {
            $since = array(round($diff / (30 * self::DAY_IN_SECONDS)), 'month');
        } elseif ($diff >= self::YEAR_IN_SECONDS) {
            $since = array(round($diff / self::YEAR_IN_SECONDS), 'year');
        }
        if ($since[0] <= 1) {
            $since[0] = 1;
        }
        return $since[0] . ' ' . $since[1] . ($since[0] == 1 ? '' : 's');
    }

 protected function execute(InputInterface $input, OutputInterface $output)
 {
     $workers = Resque\Worker::hostWorkers();
     if (empty($workers)) {
         $this->log('<warn>There are no workers on this host.</warn>');
         return;
     }
     $table = new Resque\Helpers\Table($this);
     $table->setHeaders(array('#', 'Status', 'ID', 'Running for', 'Running job', 'P', 'C', 'F', 'Interval', 'Timeout', 'Memory (Limit)'));
     foreach ($workers as $i => $worker) {
         $packet = $worker->getPacket();
         $table->addRow(array($i + 1, Resque\Worker::$statusText[$packet['status']], (string) $worker, Resque\Helpers\Util::human_time_diff($packet['started']), !empty($packet['job_id']) ? $packet['job_id'] . ' for ' . Resque\Helpers\Util::human_time_diff($packet['job_started']) : '-', $packet['processed'], $packet['cancelled'], $packet['failed'], $packet['interval'], $packet['timeout'], Resque\Helpers\Util::bytes($packet['memory']) . ' (' . $packet['memory_limit'] . ' MB)'));
     }
     $this->log((string) $table);
 }