PHP- Calculate Elapsed time (in seconds!)

function calcElapsedTime($time)
{

$diff = time()-$time;
$yearsDiff = floor($diff/60/60/24/365);
$diff -= $yearsDiff*60*60*24*365;
$monthsDiff = floor($diff/60/60/24/30);
$diff -= $monthsDiff*60*60*24*30;
$weeksDiff = floor($diff/60/60/24/7);
$diff -= $weeksDiff*60*60*24*7;
$daysDiff = floor($diff/60/60/24);
$diff -= $daysDiff*60*60*24;
$hrsDiff = floor($diff/60/60);
$diff -= $hrsDiff*60*60;
$minsDiff = floor($diff/60);
$diff -= $minsDiff*60;
$secsDiff = $diff;
return (''.$yearsDiff.' year'.(($yearsDiff <> 1) ? "s" : "").', '.$monthsDiff.' month'.(($monthsDiff <> 1) ? "s" : "").', '.$weeksDiff.' week'.(($weeksDiff <> 1) ? "s" : "").', '.$daysDiff.' day'.(($daysDiff <> 1) ? "s" : "").', '.$hrsDiff.' hour'.(($hrsDiff <> 1) ? "s" : "").', '.$minsDiff.' minute'.(($minsDiff <> 1) ? "s" : "").', '.$secsDiff.' second'.(($secsDiff <> 1) ? "s" : "").'');
}

Disclaimer: Any code or advice given is for instructional purposes only. We will not be responsible for any loss or damage caused by using this script.