note 100692 modified in function.filemtime by danbrown
| From: | danbrown@php.net | Date: | Mon, 01 Nov 2010 12:35:21 +0000 |
| Subject: | note 100692 modified in function.filemtime by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-173646@lists.php.net to get a copy of this message | ||
There's a deeply-seated problem with filemtime() under Windows due to the fact that it calls
Windows' stat() function, which implements DST (according to this bug: http://bugs.php.net/bug.php?id=40568). The detection
of DST on the time of the file is confused by whether the CURRENT time of the current system is
currently under DST.
This is a fix for the mother of all annoying bugs:
<?php
function GetCorrectMTime($filePath)
{
$time = filemtime($filePath);
$isDST = (date('I', $time) == 1);
$systemDST = (date('I') == 1);
$adjustment = 0;
if($isDST == false && $systemDST == true)
$adjustment = 3600;
else if($isDST == true && $systemDST == false)
$adjustment = -3600;
else
$adjustment = 0;
return ($time + $adjustment);
}
?>
Dustin Oprea
--was--
There's a deeply-seated problem with filemtime() under Windows due to the fact that it calls
Windows' stat() function, which implements DST (according to this bug: http://bugs.php.net/bug.php?id=40568). The detection
of DST on the time of the file is confused by whether the CURRENT time of the current system is
currently under DST.
This is a fix for the mother of all annoying bugs:
function GetCorrectMTime($filePath)
{
$time = filemtime($filePath);
$isDST = (date('I', $time) == 1);
$systemDST = (date('I') == 1);
$adjustment = 0;
if($isDST == false && $systemDST == true)
$adjustment = 3600;
else if($isDST == true && $systemDST == false)
$adjustment = -3600;
else
$adjustment = 0;
return ($time + $adjustment);
}
Dustin Oprea
http://php.net/manual/en/function.filemtime.php