Convert seconds into days, hours, minutes and seconds

Question

I would like to convert a variable $uptime which is seconds, into days, hours, minutes and seconds.

Example:

Answer 1

Solution that should exclude 0 values and set correct singular/plural values

use DateInterval;
use DateTime;

class TimeIntervalFormatter
{

    public static function fromSeconds($seconds)
    {
        $seconds = (int)$seconds;
        $dateTime = new DateTime();
        $dateTime->sub(new DateInterval("PT{$seconds}S"));
        $interval = (new DateTime())->diff($dateTime);
        $pieces = explode(' ', $interval->format('%y %m %d %h %i %s'));
        $intervals = ['year', 'month', 'day', 'hour', 'minute', 'second'];
        $result = [];
        foreach ($pieces as $i => $value) {
            if (!$value) {
                continue;
            }
            $periodName = $intervals[$i];
            if ($value > 1) {
                $periodName .= 's';
            }
            $result[] = "{$value} {$periodName}";
        }
        return implode(', ', $result);
    }
}