Are there best practices for handling form submissions and generating PDFs in PHP to ensure consistent behavior across different browsers?

When handling form submissions and generating PDFs in PHP, it's important to ensure consistent behavior across different browsers. One way to achieve this is by using a library like TCPDF or FPDF to generate PDFs, as they provide better compatibility. Additionally, make sure to properly handle form data validation and sanitization to prevent any unexpected behavior.

// Example code using TCPDF to generate a PDF from form data
require_once('tcpdf/tcpdf.php');

// Retrieve form data
$name = isset($_POST['name']) ? $_POST['name'] : '';
$email = isset($_POST['email']) ? $_POST['email'] : '';

// Create new PDF document
$pdf = new TCPDF();
$pdf->SetCreator(PDF_CREATOR);
$pdf->SetAuthor('Your Name');
$pdf->SetTitle('Form Submission PDF');
$pdf->SetSubject('Form Submission');
$pdf->SetKeywords('Form, Submission, PDF');

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

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

// Output form data in PDF
$pdf->Cell(0, 10, 'Name: ' . $name, 0, 1);
$pdf->Cell(0, 10, 'Email: ' . $email, 0, 1);

// Close and output PDF
$pdf->Output('form_submission.pdf', 'I');