How can PHP be used to create PDF files?

To create PDF files using PHP, you can use libraries like TCPDF or FPDF. These libraries provide functions to generate PDF files from scratch or based on existing templates. You can use PHP code to define the content of the PDF, such as text, images, and tables, and then output the PDF file for download or display.

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

// Create new PDF document
$pdf = new TCPDF();

// Set document information
$pdf->SetCreator('Your Name');
$pdf->SetAuthor('Your Name');
$pdf->SetTitle('Sample PDF');
$pdf->SetSubject('Sample PDF using TCPDF');
$pdf->SetKeywords('TCPDF, PDF, PHP');

// Add a page
$pdf->AddPage();

// Set font
$pdf->SetFont('helvetica', '', 12);

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

// Output the PDF as a download
$pdf->Output('sample.pdf', 'D');