QRCode

public function preview($id)
    {
        $this->load->library('Pdf');
        $data['detail'] = $this->siup_model->select_sk($id)->row();
        $dataSK         = $this->db->get_where('c39_siup_datapemilik', array('id' => $id))->row();
        if (count($dataSK) > 0) {
            // Nama File PDF
            $time     = time();
            $filename = 'SK-SIUP-' . $id . '-' . $time;

            $pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
            $pdf->SetTitle('Cetak SK SIUP');
            $pdf->SetHeaderMargin(15);
            $pdf->SetTopMargin(10);
            $pdf->setFooterMargin(10);
            $pdf->setPrintHeader(false);
            $pdf->setPrintFooter(false);
            $pdf->setFontSubsetting(true);
            $pdf->SetAutoPageBreak(true);
            $pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);
            if (@file_exists(dirname(__FILE__) . '/lang/eng.php')) {
                require_once dirname(__FILE__) . '/lang/eng.php';
                $pdf->setLanguageArray($l);
            }
            $pagelayout = array(210, 330); // F4
            $pdf->AddPage('P', $pagelayout);

            $style = array(
                'border'        => false,
                'vpadding'      => 'auto',
                'hpadding'      => 'auto',
                'fgcolor'       => array(0, 0, 0),
                'bgcolor'       => false, //array(255,255,255)
                'module_width'  => 1, // width of a single module in points
                'module_height' => 1, // height of a single module in points
            );

// Data Barcode
            $data['qrcode'] = $pdf->write2DBarcode('http://bpmppt.kuduskab.go.id/signature/' . $filename . '.pdf', 'QRCODE,H', 80, 210, 50, 50, $style, 'N');
// View
            $html = $this->load->view('kadin/siup/template_siup_v', $data, true, false, true, false, '');
            $pdf->writeHTML($html);
            $pdf->lastPage();

            $pdfFilePath = FCPATH . "signature/$filename.pdf";
            $pdf->Output($pdfFilePath, 'F');
            header("Content-type: application/pdf");
            header("Content-Length:" . filesize($pdfFilePath));
            readfile($pdfFilePath);
            exit;
        }
    }