พี่ๆครับช่วยหน่อยครับจะเพิ่ม second ของโค๊ดนี้ต้องเขียนยังไงหรอครับ [นับเวลาถอยหลัง PHP (ไม่ใช่ js นะครับ PHP) ]

<?php
// First include the class file and make a new object
include("countdown.class.php");
$CountDown = new CountDown;

// The next code will set a different format for the countdown.
// You can use the following replacement strings:
//   {W}   This is the number of weeks
//   {Ws}  Either an 's' or nothing. Use as {W} week{Ws} in case it's 1 week, and not 1 weeks.
//   {D}   Number of days
//   {Ds}  Same as {Ws} but for days
//   {H}   Number of hours
//   {Hs}  Same as {Ws} but for hours
//   {M}   Number of minutes
//   {Ms}  Same as {Ws} but for minutes
$CountDown->format = "Days: {D}<br />Hours: {H} <br />Min :{M}";
$day = "26"-1;
$out = $CountDown->Give(20,0,0,3,$day,2015);
echo $out."<br />";

?>

<?php
/* CountDown PHP class
 * Made by Angelo Geels 2010
 * http://angelog.nl/
 */
class CountDown{
	public $finished = "Countdown reached!";
	public $format = "{W} week{Ws}, {D} day{Ds}, {H} hour{Hs} and {M} minute{Ms} left";
	
	function Give($hour,$minute,$second,$month,$day,$year,$print = false){
		$date = mktime($hour,$minute,$second,$month,$day,$year);
		$timeleft = $date - time();
		if($timeleft<0){
			if($print)
				echo $this->finished;
			else
				return $this->finished;
		}else{
			$w = floor((($timeleft / 3600) / 24) / 7);
			$ws = ($w==1) ? "" : "s";
			$d = floor(($timeleft / 3600) / 24) - $w * 7;
			$ds = ($d==1) ? "" : "s";
			$h = floor($timeleft / 3600) - floor(($timeleft / 3600) / 24) * 24;
			$hs = ($h==1) ? "" : "s";
			$m = floor($timeleft / 60) - floor($timeleft / 3600) * 60;
			$ms = ($m==1) ? "" : "s";
			$out = $this->format;
			$find = array("{W}","{Ws}","{D}","{Ds}","{H}","{Hs}","{M}","{Ms}");
			$replace = array($w,$ws,$d,$ds,$h,$hs,$m,$ms);
			$out = str_replace($find,$replace,$out);
			if($print)
				echo $out;
			else
				return $out;
		}
	}
}
?>