How to properly issue files for download through php?

Question

PHP

Good afternoon, there is a script that gives files for download to the user

$fname=$_GET['fname'];
$prgid=$_GET['prgid'];
$f=fopen($fdown, 'r');
header("HTTP/1.1 200 OK");
header("Connection: close");
header("Content-Type: application/octet-stream");
header("Accept-Ranges: bytes");
header("Content-Disposition: Attachment; filename=".$fname);
header("Content-Length: ".$fsize); 
while (!feof($f)) {
if (connection_aborted()) {
fclose($f);
break;
}
echo fread($f, 10000);
sleep(1);
}
fclose($f);

when downloading small files, everything goes according to plan, but if the file size is large, then the script "freezes".
tell me what's wrong or is there another way to download files through a php script.

Answer 1

Why be so perverted? Is there a readfile

Answer 2

Several methods are described in detail here:
habrahabr.ru/post/151795
In my opinion, it is better to use modules specially designed for this:
For nginx - X-Accel-Redirect

header('X-Accel-Redirect: ' . $file);
header('Content-Disposition: attachment; filename=' . basename($file));

For apache - XSendFile

header('X-SendFile: ' . $file);
header('Content-Disposition: attachment; filename=' . basename($file));