if(isset($_GET['ok'])) 
  	{ 
  		$s_date=$_POST['datepicker']; 
  		$f_date=$_POST['datepicker2']; 
  		 
  		$timetable=new Timetable(); 
  		$timetable->setStartDate($s_date); 
  		echo $timetable->getStartDate(); 
   
         } 
  

 
  <?php 
   
  class Timetable{ 
  	 
  	private $startDate; 
  	private $finishDate; 
  		 
  	public function setStartDate($startDate){ 
  		$this->$startDate=$startDate; 
  		} 
  	public function setFinishDate($finishDate){ 
  		$this->$finishDate=$finishDate; 
  		} 
  	public function getStartDate(){ 
  		return $startDate; 
  		} 
  	public function getFinishDate(){ 
  		return $finishDate; 
  		} 
  	} 
  ?>