How can PHP developers ensure cross-browser compatibility for file downloads?

To ensure cross-browser compatibility for file downloads in PHP, developers can set the appropriate headers in the response to force the browser to download the file instead of trying to display it. This can be achieved by setting the Content-Type header to the appropriate MIME type for the file and using the Content-Disposition header with the value "attachment". Additionally, it's important to handle any potential errors or exceptions that may occur during the file download process. 

<?php
$file = 'example.pdf';
$filename = 'example.pdf';

header('Content-Type: application/pdf');
header('Content-Disposition: attachment; filename="' . $filename . '"');

readfile($file);
exit;
?>

Keywords

PHP cross-browser compatibility file downloads headers Content-Disposition

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