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Bug #74638 When PHP couldn't upload binary file, it disappear error of key from $_FILES.
Submitted: 2017-05-23 12:28 UTC Modified: 2017-05-23 12:31 UTC
From: aki dot sen dot 1209 at gmail dot com Assigned:
Status: Not a bug Package: *General Issues
PHP Version: 7.1.5 OS: Windows and LINUX
Private report: No CVE-ID: None
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 [2017-05-23 12:28 UTC] aki dot sen dot 1209 at gmail dot com 
Description:
------------
For example, please write following html.

"""
<?php
ini_set("memory_limit", "5M");
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>sample</title>
</head>
<body>
<form action="upload.php" method="post" enctype="multipart/form-data">
  Fileļ¼š<br />
  <input type="file" name="upfile" size="30" multiple><br />
  <br />
  <input type="hidden" name="myname" value="vicky">
  <input type="submit" value="upload" />
</form>
</body>
</html>
"""

Next, would you change the php.ini.

"""
php_value upload_max_filesize "5M"
php_value post_max_size "5M"
"""

Are you ready?
Let's upload something binary file from html which you wrote.
When we always judge error or success, we usually use "error" key in $_FILES.
But I found that $_FILES become array of empty , when PHP couldn't upload 'file' in 'PHP 7.1.5'.

I think that it is bug, right?
I want PHP developer team to investigate that.
Thanks.

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 [2017-05-23 12:31 UTC] requinix@php.net
-Status: Open +Status: Not a bug -Package: PHP Language Specification +Package: *General Issues
 [2017-05-23 12:31 UTC] requinix@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

http://php.net/manual/en/ini.core.php#ini.post-max-size
> If the size of post data is greater than post_max_size, the $_POST and $_FILES
> superglobals are empty.
 
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