Generate Multiple Page TCPDF on Codeigniter

I have a table that i use to show a data and generate a report based on each row. The table would be like this:

-----------------------------------------------------------------------------------------
|   employee_name  |   division   |   period   |   allowance  |  download   |  checkbox   |
|       tony       | advertising  | august 2018|    15.00     |(downloadbtn)|(checkboxbtn)|
|       lola       | advertising  | august 2018|    20.00     |(downloadbtn)|(checkboxbtn)|
-----------------------------------------------------------------------------------------

this is my controller to generate the pdf so far:

<?php
class AllowanceReport extends CI_Controller{
    function __construct(){
        parent::__construct();
        $this->load->model('allowance_m');
    }

    public function index(){
        $this->load->view('allowance_v');
    }

    public function reportpdf($id){
        ob_start();
            $allowance= $this->allowance_m->get_allowance_byid($id);
            $this->load->library('pdf_surat');
            $pdf = new
            PDF_SURAT('P','mm','A4',true,'UTF-8',false);
            $pdf->AddPage();

            $pdf->setXY(12,40);
            $txt_pembuka = 'Allowance Report';
            //$pdf->SetFontSize(16);
            $pdf->SetFont('times', 'B', 16, '', 'false');
            $pdf->MultiCell(0, 5, $txt_pembuka, 0, 'C', 0, 2, '', '', true);

            $pdf->setXY(20,$pdf->getY()+7);
            $pdf->SetFont('times', '', 12, '', 'false');
            $pdf->cell(35,5,"Nama");
            $pdf->cell(0,5,":   ".$allowance->employee_name);

            $pdf->setXY(20,$pdf->getY()+7);
            $pdf->cell(35,5,"Periode");
            $periode = strtotime($allowance->periode);
            $formatperiode = date('F Y',$periode);
            $pdf->cell(0,5,":   ".$formatperiode);

            $pdf->setXY(20,$pdf->getY()+7);
            $pdf->cell(35,5,"Uang Makan");
            $pdf->cell(0,5,":   Rp.".$allowance->allowance);
            $pdf->Output();

        ob_end_flush();
        }

    }
?>

and this is the view:

<div class="table">
        <table class="table table-striped table-bordered table-hover">
                <thead>
                    <tr>
                        <th><center>Employee Name</center></th>
                        <th><center>Division</center></th>
                        <th><center>Period</center></th>
                        <th><center>Allowance</center></th>
                        <th><center>Download</center></th>
                        <th><center><input type="checkbox" class="checkAll" /></center></th>
                        <?php } ?>
                    </tr>
                </thead>

                <?php 
                    $no = 1;
                    if(is_array($query)){
                    foreach($query as $row):
                    ?>
                    <tr>
                        <td><?php echo $row->employee_name ?></td>
                        <td><?php echo $row->division ?></td>
                        <td><?php echo date("F-Y", strtotime($row->period)) ?></td>
                        <td><?php echo $row->allowance ?></td>
                        <td>
                            <center>
                                <a href="<?php echo base_url(). "index.php/allowancereport/reportpdf/".$row->idallowance;?>" class="btn btn-success" id="cetaksurat_"><b><span class="glyphicon glyphicon-download"></span></b></a>
                            </center>
                        </td>
                        <td>
                            <center>
                                <input type="checkbox" class="checkitem" value="<?php echo $row->idmakan; ?>"/>
                            </center>
                        </td>
                        <td>
                            <center>
                                <a href="<?php echo base_url();?>absengaji/edit/<?php echo $row->idmakan;?>" class="btn btn-primary btn-xs edit" data-toggle="modal" id="edit_">
                                <span class="glyphicon glyphicon-pencil"></span></a>
                            </center>
                        </td>
                    <?php } ?>
                    </tr>
                <?php endforeach ; } ?>         
                </table>
        </div>
        </div>
    </div>
</div>

and here’s my model

        public function get_allowance_byid($id)
    {
        $sql = "SELECT * FROM allowance WHERE idallowance='".$id."'";
        return $this->db->query($sql)->row();
    }

I managed to generate a pdf for each row. but is it possible to generate a file with multiple pages based on checked checkbox? could the pdf file generate each data checked with different pages in a file?

Answer

You could do it like below

Front End

Add form tags before and after table tags, set the form target to a new method (allreportpdf), and also add the submit button to trigger the save all report inside the form (maybe before the form close tag) :

<form action="<?php echo base_url() . "index.php/allowancereport/allreportpdf" ?>" method="POST" role="form">
    <table class="table table-striped table-bordered table-hover">
    ...
    ...
    ...
    </table>
    <button type="submit" class="btn btn-primary">Get All Report</button>
</form>

Add a name (maybe eid) on checkbox input, it will be used as post data on the new method (allreportpdf).

<center>
    <input type="checkbox" class="checkitem" name="eid[]" value="<?php echo $row->idmakan; ?>"/>
</center>

Back End

Since this page using different layout, you should make a new method on AllowanceReport class, using the prevously set post name (eid), you could use it within a foreach() loop, and modify the pdf setting so each id is separated on each page :

public function allreportpdf(){
    ob_start();
    $this->load->library('pdf_surat');
    $pdf = new
    PDF_SURAT('P','mm','A4',true,'UTF-8',false);
    foreach ($this->input->post('eid') as $id) {
        $allowance= $this->allowance_m->get_allowance_byid($id);
        $pdf->AddPage();

        $pdf->setXY(12,40);
        $txt_pembuka = 'Allowance Report';
        //$pdf->SetFontSize(16);
        $pdf->SetFont('times', 'B', 16, '', 'false');
        $pdf->MultiCell(0, 5, $txt_pembuka, 0, 'C', 0, 2, '', '', true);

        $pdf->setXY(20,$pdf->getY()+7);
        $pdf->SetFont('times', '', 12, '', 'false');
        $pdf->cell(35,5,"Nama");
        $pdf->cell(0,5,":   ".$allowance->employee_name);

        $pdf->setXY(20,$pdf->getY()+7);
        $pdf->cell(35,5,"Periode");
        $periode = strtotime($allowance->periode);
        $formatperiode = date('F Y',$periode);
        $pdf->cell(0,5,":   ".$formatperiode);

        $pdf->setXY(20,$pdf->getY()+7);
        $pdf->cell(35,5,"Uang Makan");
        $pdf->cell(0,5,":   Rp.".$allowance->allowance);
    }
    $pdf->output();

    ob_end_flush();
}