I cant upload files bigger then 10 MB but i don't understand why?

Question

I wrote a file upload script via PHP and now i have a problem that i can't upload bigger files around 8-10 MB so do you guys have any suggestions ?

<?php
  ini_set('post_max_size', '8128M');
  ini_set('upload_max_filesize', '8128M');
  header("Content-Type: text/plain");
  $key = "M8hqvvaCbMGXP4GycfDNc6CUckYdETdPEkcdKu9QaUEM52jCZnrnrKkh8B9hVZGN";
  $uploadhost = "https://i.sandrotracker.biz/";
  $foldername = "../";
  if ($_SERVER["REQUEST_URI"] == "/robot.txt") { die("User-agent:   *\nDisallow: /"); }
  if (isset($_POST['k'])) {
if ($_POST['k'] == $key) {
    $target = getcwd() . "/" . $foldername . "/" . basename(basename($_FILES['d']['name']));
    if (move_uploaded_file($_FILES['d']['tmp_name'], $target)) {
        $md5 = md5(microtime(true) . md5_file(getcwd() . "/" . $foldername . "/" . basename($_FILES['d']['name'])));
        rename(getcwd() . "/" . $foldername . "/" . basename($_FILES['d']
['name']), getcwd() . "/" . $foldername . "/" . $md5 . "." . 
end(explode(".", 
  $_FILES["d"]["name"])));
        echo $uploadhost . $md5 . "." . end(explode(".", $_FILES["d"]
       ["name"]));
        exit;
    } else {
      print_r($_FILES);
      exit;
    }
}
} 
echo "invalid_request";
?>

[Tue Aug 08 00:08:32.187230 2017] [:error] [pid 6602] [client 213.153.71.20:56583] PHP Warning: POST Content-Length of 18775972 bytes exceeds the limit of 8388608 bytes in Unknown on line 0 — Sandro, Aug 07 '17 at 22:08
nop my own dedicated machine already tried [PHP change the maximum upload file size](https://stackoverflow.com/questions/2184513/php-change-the-maximum-upload-file-size) — Sandro, Aug 07 '17 at 22:16
you cant use ini_set for `upload_max_filesize`. change them in your php.ini — , Aug 07 '17 at 22:36
well i just reinstall php now its working no clue what happend :c — Sandro, Aug 07 '17 at 22:43
@Sandro You likely installed the 64-bit version of php instead of the 32-bit version, thereby solving the problem. — Ben Shoval, Aug 07 '17 at 23:01

score 0 · Accepted Answer · answered Aug 07 '17 at 22:58

The problem is that 8128M (8,522,825,728 bytes) exceeds the 32-bit integer limit (2,147,483,647). See https://en.wikipedia.org/wiki/2,147,483,647 for a basic explanation.

You can solve this in one of two ways:

Move to a 64-bit php setup.
If you don't need uploads bigger than about 2GB, change:

ini_set('post_max_size', '8128M');
ini_set('upload_max_filesize', '8128M');

to:

ini_set('post_max_size', '2147483647');
ini_set('upload_max_filesize', '2147483647');

I cant upload files bigger then 10 MB but i don't understand why?

1 Answers1