#48245 [Opn->Fbk]: Setting file datetime outside of matching DST settings loses time.

ID: 48245 Updated by: jani@php.net Reported By: RQuadling at GMail dot com -Status: Open +Status: Feedback Bug Type: Date/time related Operating System: Windows XP SP3 PHP Version: 5.3CVS-2009-05-12 (snap) New Comment: Please try using this CVS snapshot: http://snaps.php.net/php5.2-latest.tar.gz For Windows: http://windows.php.net/snapshots/ Previous Comments: ------------------------------------------------------------------------ [2009-05-12 14:30:23] RQuadling at GMail dot com Description: ------------ Touching a file with a non DST datetime and then reading it back is losing 1 hour. Using Procmon, Windows is getting and returning the correct times. It seems that PHP is adjusting the times it gets when in DST and reading a file NOT in DST. Reproduce code: --------------- <?php // Create a dummy file. $s_File = getenv('TEMP') . DIRECTORY_SEPARATOR . 'junktime.txt'; file_put_contents($s_File, 'JUNK'); $a_Dates = array( 'Some time today' => strtotime('today 13:14:15'), 'January 1st' => strtotime('2009/02/03 04:05:06'), 'October 1st' => strtotime('2008/10/01 04:05:06'), ); foreach($a_Dates as $s_When => $dt_Date) { touch($s_File, $dt_Date); clearstatcache(); $dt_Modified = filemtime($s_File); echo 'Wanted to set the date to : (', $dt_Date, ') ', date('r', $dt_Date), PHP_EOL, 'File was set to : (', $dt_Modified, ') ', date('r', $dt_Modified), PHP_EOL, ($dt_Date === $dt_Modified ? 'Match' : 'Different'), PHP_EOL, PHP_EOL; } // Clean-up unlink($s_File); Expected result: ---------------- Wanted to set the date to : (1242130455) Tue, 12 May 2009 13:14:15 +0100 File was set to : (1242130455) Tue, 12 May 2009 13:14:15 +0100 Match Wanted to set the date to : (1233633906) Tue, 03 Feb 2009 04:05:06 +0000 File was set to : (1233633906) Tue, 03 Feb 2009 04:05:06 +0000 Match Wanted to set the date to : (1222830306) Wed, 01 Oct 2008 04:05:06 +0100 File was set to : (1222830306) Wed, 01 Oct 2008 04:05:06 +0100 Match Actual result: -------------- Wanted to set the date to : (1242130455) Tue, 12 May 2009 13:14:15 +0100 File was set to : (1242130455) Tue, 12 May 2009 13:14:15 +0100 Match Wanted to set the date to : (1233633906) Tue, 03 Feb 2009 04:05:06 +0000 File was set to : (1233630306) Tue, 03 Feb 2009 03:05:06 +0000 Different Wanted to set the date to : (1222830306) Wed, 01 Oct 2008 04:05:06 +0100 File was set to : (1222830306) Wed, 01 Oct 2008 04:05:06 +0100 Match ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=48245&edit=1