if(isset($_POST["export"])){
 if(empty($_POST["fromDate"])){
  $startDateMessage = '>label class="text-danger"<Select start date.>/label<';
 }else if(empty($_POST["toDate"])){
  $endDate = '>label class="text-danger"<Select end date.>/label<';
 } else {  
  $orderQuery = "
	SELECT * FROM enquiry_form 
	WHERE date <= '".$_POST["fromDate"]."' AND date >= '".$_POST["toDate"]."' ORDER BY date DESC";
  $orderResult = mysqli_query($conn, $orderQuery) or die("database error:". mysqli_error($conn));
  $filterOrders = array();
  while( $order = mysqli_fetch_assoc($orderResult) ) {
	$filterOrders[] = $order;
  }
  if(count($filterOrders)) {
	  $fileName = "phpzag_export_".date('Ymd') . ".csv";
	  header("Content-Description: File Transfer");
	  header("Content-Disposition: attachment; filename=$fileName");
	  header("Content-Type: application/csv;");
	  $file = fopen('php://output', 'w');
	  $header = array("Id", "Name", "Item", "Value", "Date");
	  fputcsv($file, $header);  
	  foreach($filterOrders as $order) {
	   $orderData = array();
	   $orderData[] = $order["id"];
	   $orderData[] = $order["name"];
	   $orderData[] = $order["email"];
	   $orderData[] = $order["mobile"];
	   $orderData[] = $order["state"];
	   $orderData[] = $order["city"];
	   $orderData[] = $order["course_type"];
	   $orderData[] = $order["course"];
	   $orderData[] = $order["date"];
	   fputcsv($file, $orderData);
	  }
	  fclose($file);
	  exit;
  }
 }
}