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

With DateInterval :

$d1 = new DateTime();
$d2 = new DateTime();
$d2->add(new DateInterval('PT'.$timespan.'S'));

$interval = $d2->diff($d1);
echo $interval->format('%a days, %h hours, %i minutes and %s seconds');

// Or
echo sprintf('%d days, %d hours, %d minutes and %d seconds',
    $interval->days,
    $interval->h,
    $interval->i,
    $interval->s
);

// $interval->y => years
// $interval->m => months
// $interval->d => days
// $interval->h => hours
// $interval->i => minutes
// $interval->s => seconds
// $interval->days => total number of days