What is the correct way to generate a PDF file in PHP?

To generate a PDF file in PHP, you can use the TCPDF library, which allows you to create PDF documents easily. First, you need to include the TCPDF library in your PHP file, then create a new TCPDF object, set the document properties, add content to the PDF, and finally output the PDF file.

// Include the TCPDF library
require_once('tcpdf/tcpdf.php');

// Create new TCPDF object
$pdf = new TCPDF();

// Set document properties
$pdf->SetCreator('Your Name');
$pdf->SetAuthor('Your Name');
$pdf->SetTitle('Title of PDF');

// Add content to the PDF
$pdf->AddPage();
$pdf->SetFont('Helvetica', '', 12);
$pdf->Cell(0, 10, 'Hello, World!', 0, 1, 'C');

// Output the PDF file
$pdf->Output('example.pdf', 'D');