Home » Date and Time » Date » Bug #4489

[2005-05-31 18:39 UTC] jpm at mysql dot com

Description:
------------
See description of problem here: http://lists.mysql.com/eventum-users/1578

====

I just moved my Eventum 1.5.3 test installation from :
- W2K Sp4 / PWS
- MySQL 4.1.11
- PHP 4.3.10
- mailserver Lotus Notes 5.0.12 / IMAP

to production environment :
- Windows 2003 SP1 / IIS 6.0
- MySQL 4.1.12
- PHP 4.3.11
- mailserver Lotus Notes 5.0.12 / IMAP

and had the same cgi error when viewing entry details. I found a windows related
problem in the include PEAR file timezone.php. Below a fixed version from the
function causing the error:

/**
* Is the given date/time in DST for this time zone
*
* Attempts to determine if a given Date object represents a date/time
* that is in DST for this time zone. WARNINGS: this basically attempts to
* "trick" the system into telling us if we're in DST for a given time zone.
* This uses putenv() which may not work in safe mode, and relies on unix time
* which is only valid for dates from 1970 to ~2038. This relies on the
* underlying OS calls, so it may not work on Windows or on a system where
* zoneinfo is not installed or configured properly.
*
* @access public
* @param object Date $date the date/time to test
* @return boolean true if this date is in DST for this time zone
*/

function inDaylightTime($date)
{
// This additional line immediately returns from the function.
return date("I");
// End MS Windows work around code.

// Beginning of the original PEAR code.
$env_tz = "";
if(getenv("TZ")) {
$env_tz = getenv("TZ");
}
putenv("TZ=".$this->id);
$ltime = localtime($date->getTime(), true);
putenv("TZ=".$env_tz);
return $ltime['tm_isdst'];
}

More about the problem :
http://phpwebsite-comm.sourceforge.net/wiki/index.php?title=MS_Windows_Installations#MS_Windows_2003_and_IIS6

====

So my question is the following: if date('I') is available to check if the given date is on DST or not, why do you need the code above?