From: [EMAIL PROTECTED]
Operating system: Windows 2000 Server
PHP version: 4.0.6
PHP Bug Type: Date/time related
Bug description: gmmktime, gmdate work incorrect
Please see the code below. The comments are the result of running this code
on my PC, (my GMT Offset = +2 hours = +7200 sec.)
You may see that the mktime() and date() functions work correct, but
gmmktime() returns wrong value in winter time (when it is not a daylight
saving time), and gmdate returns wrong "Z" parameter.
Note: this bug does not appear on UNIX systems.
<?
$df="d.m.Y - H:i:s (Z), I";
$t=mktime(0,0,0,1,2,1970);
echo "<br><b>Make 02.01.1970 - 00:00:00 (Local):</b><br>",
"Timestamp: $t<br>", // 79200
"GMT: ", gmdate($df,$t), "<br>", // 01.01.1970 - 22:00:00 (7200)
"Local: ", date($df,$t), "<br>", // 02.01.1970 - 00:00:00 (7200)
"----------------------------------------<br>";
$t=gmmktime(0,0,0,1,2,1970);
echo "<br><b>Make 02.01.1970 - 00:00:00 (GMT):</b><br>",
"Timestamp: $t<br>", // 82800 (Why !=86400 ?)
"GMT: ", gmdate($df,$t), "<br>", // 01.01.1970 - 23:00:00 (7200)
"Local: ", date($df,$t), "<br>", // 02.01.1970 - 01:00:00 (7200)
"----------------------------------------<br>";
$t=mktime(0,0,0,7,20,1970);
echo "<br><b>Make 20.07.1970 - 00:00:00 (Local):</b><br>",
"Timestamp: $t<br>", // 17269200
"GMT: ", gmdate($df,$t), "<br>", // 01.07.1970 - 21:00:00 (7200)
"Local: ", date($df,$t), "<br>", // 02.07.1970 - 00:00:00 (10800)
"----------------------------------------<br>";
$t=gmmktime(0,0,0,7,20,1970);
echo "<br><b>Make 20.07.1970 - 00:00:00 (GMT):</b><br>",
"Timestamp: $t<br>", // 17280000 (=86400*200)
"GMT: ", gmdate($df,$t), "<br>", // 02.07.1970 - 00:00:00 (7200)
"Local: ", date($df,$t), "<br>", // 02.07.1970 - 03:00:00 (10800)
"----------------------------------------<br>";
?>
--
Edit bug report at: http://bugs.php.net/?id=14391&edit=1
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