In what ways can HTML code impact the functionality of PHP download scripts, particularly when it comes to handling PDF files?

When handling PDF files in PHP download scripts, the HTML code can impact functionality by interfering with the headers sent to the browser. To ensure proper handling of PDF files, it is important to set the correct content type and headers in the PHP script to force the browser to download the file instead of trying to display it in the browser window. 

<?php
// Set the content type and headers for downloading a PDF file
header('Content-Type: application/pdf');
header('Content-Disposition: attachment; filename="example.pdf"');

// Path to the PDF file
$pdf_file = 'path/to/example.pdf';

// Output the PDF file
readfile($pdf_file);
exit;
?>

Keywords

HTML PHP download scripts PDF files functionality impact

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