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Bug #33362 ftp_mdtm does not return correct date
Submitted: 2005-06-16 14:39 UTC Modified: 2005-06-16 19:41 UTC
From: till at klimpong dot com Assigned:
Status: Not a bug Package: FTP related
PHP Version: 4.3.10 OS: FreeBSD 5.2-current
Private report: No CVE-ID: None
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 [2005-06-16 14:39 UTC] till at klimpong dot com 
Description:
------------
ftp_mdtm always returns a wrong unix timestamp.

Our FTPd is proftpd (with TimesGMT off). The date, time and timezone are set correctly on the server.

When I connect to the FTP with another client (such as filezilla), all dates are displayed correct. This error only occurs within a PHP script.

For example:
current time on the server: 2:24PM
current time returned by ftp_mdtm: 4:24 PM

This example works:

<?php
echo strftime("%d.%m.%Y - %H:%M");
?>

Displays the correct time, so I guess this problem comes from ftp_mtdm().

Reproduce code:
---------------
<?php
$file = 'somefile.foo';
$ts = file_mtdm($file);
echo strftime("%d.%m.%Y - %H:%M", $ts);
?>


Expected result:
----------------
File's modification time.

Actual result:
--------------
The file's modification time plus two hours.

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 [2005-06-16 14:42 UTC] till at klimpong dot com 
Forgot to add. I also set the locale on my system. Just to make sure that this is not some weird conversion bug.

<?php
setlocale(LC_ALL, 'de_DE.ISO8859-1');
?>
 [2005-06-16 18:10 UTC] sniper@php.net 
Yes, because your time is GMT+2.
 [2005-06-16 18:19 UTC] till at klimpong dot com 
Well, the server's time is set to GMT+2 already. The server is in my timezone and so on. So my local time and the server's time are the same.

If the server is GMT+2, then the function returns it with GMT+4. Where does the difference come from then?
 [2005-06-16 18:29 UTC] sniper@php.net 
Check what MDTM command gives you for that file in question
using your ftp client:

> debug
> modtime yourfile
 [2005-06-16 18:46 UTC] till at klimpong dot com 
Command:  MDTM apache-ssl.txt
Response: 213 20050616141816

Which is correct.

ftp_mdtm on the same file returns 11189314961
 [2005-06-16 18:55 UTC] sniper@php.net 
You have extra '1' in the timestamp. (typo, I hope :)

# php -r 'echo gmdate("F d Y H:i:s", 1118931496);'
June 16 2005 14:18:16

That looks pretty okay to me.
 [2005-06-16 19:18 UTC] till at klimpong dot com 
Typo indeed.

So I substituted strftime with gmdate and it works.

Thanks for your help.
 [2005-06-16 19:41 UTC] tony2001@php.net 
It works -> no bug.
 [2013-09-09 16:14 UTC] daverandom@php.net 
Automatic comment from SVN on behalf of daverandom
Revision: http://svn.php.net/viewvc/?view=revision&amp;revision=331330
Log: Clarify the mechanism of prepared statements in MySQLi quickstart

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