What is the best practice for implementing a download feature for webpage content in PHP?

To implement a download feature for webpage content in PHP, you can use the header() function to set the appropriate content type and headers for the file download. You should also read the file contents and output them to the browser. Additionally, you can use the readfile() function to simplify this process. 

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

header('Content-Description: File Transfer');
header('Content-Type: application/pdf');
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

file download PHP headers content-disposition download manager

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