What are some common libraries used to convert HTML/CSS with PHP data into PDF files?

When needing to convert HTML/CSS with PHP data into PDF files, one common approach is to use libraries that can generate PDF files from HTML content. Some popular libraries for this task include TCPDF, DomPDF, and MPDF. These libraries allow you to easily create PDF files by converting HTML content along with CSS styles into a PDF format.

// Example using TCPDF library to convert HTML/CSS with PHP data into a PDF file

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

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

// Set document information
$pdf->SetCreator('Creator');
$pdf->SetAuthor('Author');
$pdf->SetTitle('Title');
$pdf->SetSubject('Subject');
$pdf->SetKeywords('Keywords');

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

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

// Set some content to be converted to PDF
$html = '<h1>Hello, World!</h1>';

// Convert HTML content to PDF
$pdf->writeHTML($html, true, false, true, false, '');

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