How can PHP be used to create a link that triggers a download through the browser's download manager?

To create a link that triggers a download through the browser's download manager using PHP, you can set the appropriate headers in the response to indicate that the file should be downloaded instead of displayed in the browser. You can do this by setting the "Content-Type" header to the MIME type of the file and the "Content-Disposition" header to "attachment".

<?php
$file = 'path/to/your/file.pdf';
header('Content-Type: application/pdf');
header('Content-Disposition: attachment; filename="'.basename($file).'"');
readfile($file);
?>