How can different browsers or download managers impact the download process when using PHP for file downloads?

Different browsers or download managers can impact the download process when using PHP for file downloads by not properly handling the headers sent by the server. To ensure a consistent download experience, it's important to set the appropriate headers in PHP to force the browser to download the file instead of trying to display it in the browser window. 

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

header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="' . basename($file) . '"');
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
header('Content-Length: ' . filesize($file));
readfile($file);
exit;

Keywords

browsers download managers PHP file downloads impact

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