This function will return the duration of the given time period in days, hours, minutes and seconds.

Syntax
secstostr()

Example
secstostr(1234567) would return "14 days, 6 hours, 56 minutes, 7 seconds"

function secstostr($secs) {
  if($secs>=86400){$days=floor($secs/86400);$secs=$secs%86400;$r=$days.' day';if($days<>1){$r.='s';}if($secs>0){$r.=', ';}}
  if($secs>=3600){$hours=floor($secs/3600);$secs=$secs%3600;$r.=$hours.' hour';if($hours<>1){$r.='s';}if($secs>0){$r.=', ';}}
  if($secs>=60){$minutes=floor($secs/60);$secs=$secs%60;$r.=$minutes.' minute';if($minutes<>1){$r.='s';}if($secs>0){$r.=', ';}}
  $r.=$secs.' second';if($secs<>1){$r.='s';}
  return $r;
}