tcpdf打印选项在pdf文件codeigniter中启用

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

require_once APPPATH.'third_party/tcpdf/tcpdf.php';

class Pdf_lib extends TCPDF {

    public function __construct() {
        parent::__construct();
    }

    // 添加自定义的打印选项方法
    public function enable_print_options() {
        // 设置打印选项
        $this->SetPrintHeader(false);
        $this->SetPrintFooter(false);
    }

}

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class PdfController extends CI_Controller {

    public function __construct() {
        parent::__construct();
        $this->load->library('pdf_lib');
    }

    public function generate_pdf() {
        // 创建一个新的PDF对象
        $pdf = new Pdf_lib();

        // 启用打印选项
        $pdf->enable_print_options();

        // 添加内容到PDF文件
        $pdf->AddPage();
        $pdf->SetFont('helvetica', 'B', 16);
        $pdf->Cell(0, 10, 'Hello, World!', 0, 1, 'C');

        // 输出PDF文件
        $pdf->Output('example.pdf', 'I');
    }

}