fpdf ผมต้องการเติมตารางว่างลงไปในกรณีที่เป็นค่าว่างครับ

function BasicTable($data, $data1,$results) {
                        $head = array('','TODAY SALES', 'MTD', 'QTD', 'YTD');
                        $ss = array( 143,33, 33, 33, 33);
                        $header = array('NO.', 'ACCOUNT', 'SALES DIVISION', 'SALES DEPARTMENT', 'LEVEL OF RELATIONSHIP', 'GRADE', 'LOCATION NAME',
                            'TERRITORY', 'SELL-IN', 'SELL-OUT', 'VARIANCE', 'SELL-IN', 'SELL-OUT', 'VARIANCE', 'SELL-IN', 'SELL-OUT', 'VARIANCE', 'SELL-IN', 'SELL-OUT', 'VARIANCE');
                        $w = array(5, 20, 20, 25, 25, 15, 15, 18, 11, 11,11, 11, 11, 11, 11, 11,11, 11, 11, 11, 11, 11);

                       // $this->SetX(153);
                        for ($i = 0; $i < count($head); $i++)
                            $this->Cell($ss[$i], 5, iconv('UTF-8', 'TIS-620', $head[$i]), 1, 0, 'C'); //หัววคอลัมท่ี2
                        $this->Ln();
                        for ($i = 0; $i < count($header); $i++)
                            $this->Cell($w[$i], 5, iconv('UTF-8', 'TIS-620', $header[$i]), 1, 0, 'C');//เซตหัวข้อเป็นไทย
                        $this->Ln();
                     
                        foreach ($results as $eachResult) {
                          $this->Cell(5, 6, $row, 1, 0, 'C');
                            $this->Cell(20, 6, $eachResult["name"], 1, 0, 'C');
                        }
                        foreach ($data1 as $obj) {
                            $this->setX(35);
                            $this->Cell(20, 6, $obj["sellingdivision_c"], 1, 0, 'C');
                            $this->Cell(25, 6, $obj["sellingdepartmentbranch_c"], 1, 0, 'C');
                            
                            // $this->Cell(34,6,  $obj["netamount_c"],1,0,'C');
                            $this->Ln();
                        }
                       
                        foreach ($data as $result) {
                             $this->SetXY(80,20);
                            $this->Cell(25, 6, $result["levelofrelationship_c"], 1, 0, 'C');
                            $this->Cell(15, 6, $result["grade_c"], 1, 0, 'C');
                            $this->Cell(15, 6, 'Unknow',1,0,'C');
                            $this->Cell(18, 6, $result["territory_c"], 1, 0, 'C');
                      
                           
                        }
                        
                        foreach ($data1 as $data1) {
                            $this->SetX(-144);
                             $this->Cell(11,6,  $data1["netamount_c"],1,0,'C');
                             $this->Cell(11,6,'0',1,0,'C');//ถ้าได้ใช้งานก็ค่อยเข้ามาเปลี่ยน 0 ให้เป็นตัวแปรอื่น
                              $res = $data1["netamount_c"]-0;
                              $this->Cell(11,6,$res,1,0,'C');
                              $this->Cell(11,6,'',1,0,'C');
                              $this->Cell(11,6,'',1,0,'C');
                              $this->Cell(11,6,'',1,0,'C');
                              $this->Cell(11,6,'',1,0,'C');
                              $this->Cell(11,6,'',1,0,'C');
                              $this->Cell(11,6,'',1,0,'C');
                              $this->Cell(11,6,'',1,0,'C');
                              $this->Cell(11,6,'',1,0,'C');
                              $this->Cell(11,6,'',1,0,'C');
                
                          
                              $this->Ln();
                        }
                    }