Serving large files with PHP

Question

So I am trying to serve large files via a PHP script, they are not in a web accessible directory, so this is the best way I can figure to provide access to them.

The

Answer 1

The best way to send big files with php is the X-Sendfile header. It allows the webserver to serve files much faster through zero-copy mechanisms like sendfile(2). It is supported by lighttpd and apache with a plugin.

Example:

$file = "/absolute/path/to/file"; // can be protected by .htaccess
header('X-Sendfile: '.$file);
header('Content-type: application/octet-stream');
header('Content-Disposition: attachment; filename="'.basename($file).'"');
// other headers ...
exit;

The server reads the X-Sendfile header and sends out the file.