A function that shows how long time is has been something. Ie. "4 minutes ago"

TimeAgo function

function TimeAgo ($oldTime, $newTime) {
  $timeCalc = strtotime($newTime) - strtotime($oldTime);
  if ($timeCalc >= (60*60*24*30*12*2)){
    $timeCalc = intval($timeCalc/60/60/24/30/12) . " years ago";
  }else if ($timeCalc >= (60*60*24*30*12)){
    $timeCalc = intval($timeCalc/60/60/24/30/12) . " year ago";
  }else if ($timeCalc >= (60*60*24*30*2)){
    $timeCalc = intval($timeCalc/60/60/24/30) . " months ago";
  }else if ($timeCalc >= (60*60*24*30)){
    $timeCalc = intval($timeCalc/60/60/24/30) . " month ago";
  }else if ($timeCalc >= (60*60*24*2)){
    $timeCalc = intval($timeCalc/60/60/24) . " days ago";
  }else if ($timeCalc >= (60*60*24)){
    $timeCalc = " Yesterday";
  }else if ($timeCalc >= (60*60*2)){
    $timeCalc = intval($timeCalc/60/60) . " hours ago";
  }else if ($timeCalc >= (60*60)){
    $timeCalc = intval($timeCalc/60/60) . " hour ago";
  }else if ($timeCalc >= 60*2){
    $timeCalc = intval($timeCalc/60) . " minutes ago";
  }else if ($timeCalc >= 60){
    $timeCalc = intval($timeCalc/60) . " minute ago";
  }else if ($timeCalc > 0){
    $timeCalc .= " seconds ago";
  }
  return $timeCalc;
}