From: fear dot the dot golgota at gmail dot com
Operating system: Linux Suse 9.3 professional
PHP version: 5.1.2
PHP Bug Type: Date/time related
Bug description: mktime strange result or leak of documentation
Description:
------------
According to documentation, setting is_dst to -1 can cause unexpected (but
not incorrect) results.
The result below demostrates the behavior of mktime or the documentation
is wrong.
Anyway it's better to explain why the is_dst paramater is deprecated since
php 5.1.0.
I check gmmktime, and the result is the same!
Reproduce code:
---------------
echo (mktime(2,0,0,3,31,1996,1)),"<br>";
echo (mktime(3,0,0,3,31,1996,1)),"<br><br>";
echo (mktime(2,0,0,3,31,1996,0)),"<br>";
echo (mktime(3,0,0,3,31,1996,0)),"<br><br>";
echo (mktime(2,0,0,3,31,1996,-1)),"<br>";
echo (mktime(3,0,0,3,31,1996,-1)),"<br><br>";
echo (gmmktime (2,0,0,3,31,1996)),"<br>";
echo (gmmktime (3,0,0,3,31,1996)),"<br>";
Expected result:
----------------
4 blocks with 2 numbers.
In each block, the pair of numbers must be different!
Actual result:
--------------
828230400
828234000
828234000
828237600
828234000
828234000
828241200
828241200
--
Edit bug report at http://bugs.php.net/?id=36985&edit=1
--
Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=36985&r=trysnapshot44
Try a CVS snapshot (PHP 5.1): http://bugs.php.net/fix.php?id=36985&r=trysnapshot51
Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=36985&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=36985&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=36985&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=36985&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=36985&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=36985&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=36985&r=support
Expected behavior: http://bugs.php.net/fix.php?id=36985&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=36985&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=36985&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=36985&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=36985&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=36985&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=36985&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=36985&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=36985&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=36985&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=36985&r=mysqlcfg