//First assign default value for all variables
$BMK81A = 0;
$DL3=0;
//Check the value is posted by post method if it is assign it to the corresponding value
 if (isset($_POST['BMK81A']) { 
  $BMK81A = $_POST['BMK81A'];
 }
   
 if(isset($_POST['DL3'])){
 	$DL3=$_POST['DL3'];
 }

COUNT (paidvacation.staffid)

SELECT staff.staffid,staff.name,attendance.checkintime,attendance.checkouttime,attendance.breakintime,attendance.breakouttime,
attendance.latetime,attendance.overtime,attendance.transfees,COUNT(paidvacation.staffid) AS Leave,COUNT(attendance.staffid) AS Work
FROM attendance INNER JOIN staff ON (staff.staffid

include("../mpdf.php");
$mpdf=new mPDF();
$mpdf->WriteHTML($html);
$mpdf->Output();
exit;