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Bug #28425 microtime returns old system time
Submitted: 2004-05-18 00:02 UTC Modified: 2004-07-30 11:55 UTC
From: bela at up2you dot se Assigned: wez (profile)
Status: Closed Package: Date/time related
PHP Version: 4.3.6 OS: XP professional
Private report: No CVE-ID: None
View Developer Edit
 [2004-05-18 00:02 UTC] bela at up2you dot se 
Description:
------------
microtime() is not affected after changing the system time. The bug is verified on IIS and PHP4isapi.dll. 
The only way to get right system time is to restart the IIS server.

The example shows when changing system time from 23:48:13 to 23:38:13.

Reproduce code:
---------------
<?php
header("Content-type: text/plain");
list($usec, $sec) = explode(" ", microtime()); 
print date("Y-m-d H:i:s", $sec) . "\r\n";
print date("Y-m-d H:i:s", time());
?>

Expected result:
----------------
2004-05-17 23:38:13
2004-05-17 23:38:13



Actual result:
--------------
2004-05-17 23:48:13
2004-05-17 23:38:13

Patches

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 [2004-05-18 01:21 UTC] wez@php.net 
There are some nasty static variables in use in our gettimeofday() implementation.

I've a feeling that the fix would be something that will only work in win98 and higher, so it might not be possible to fix in PHP 4.3.x, but be fair game for PHP 5.

Assigning to myself; I'll look at it later in the week.
 [2004-07-29 05:31 UTC] wez@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php5-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5-win32-latest.zip

ok, so maybe it took longer than a week...
Please try next PHP 5.1 (unstable) snapshot dated after this message.
If you confirm that it is working correctly, we can look into back-porting the fix to PHP 4.3.
 [2004-07-30 11:49 UTC] bela at up2you dot se 
Tested next PHP 5.1 (unstable) snapshot and now it works correctly.
 [2004-07-30 11:55 UTC] edink@php.net 
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.
 
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