如何使用PHP制作pdf文件

<?php
require_once('tcpdf_include.php');

// 创建PDF文档对象
$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);

// 设置文档信息
$pdf->SetCreator(PDF_CREATOR);
$pdf->SetAuthor('Author Name');
$pdf->SetTitle('Sample PDF Document');
$pdf->SetSubject('TCPDF Tutorial');
$pdf->SetKeywords('TCPDF, PDF, example, test, guide');

// 设置默认字体为 helvetica
$pdf->SetFont('helvetica', '', 12, '', true);

// 添加一个页面
$pdf->AddPage();

// 设置页面内容
$html = '<h1>Welcome to TCPDF Tutorial</h1>
    <h2>This is a sample PDF document generated using TCPDF library.</h2>
    <p>You can find the source code of this example in examples/example_001.php file.</p>';

// 输出内容
$pdf->writeHTML($html, true, false, true, false, '');

// 输出PDF文件
$pdf->Output('example_001.pdf', 'I');