Edit report at http://bugs.php.net/bug.php?id=51439&edit=1

 ID:               51439
 Updated by:       der...@php.net
 Reported by:      ml at stefanbongartz dot de
 Summary:          "last month" in date does not right on March 30th
-Status:           Open
+Status:           Bogus
 Type:             Bug
 Package:          *General Issues
 Operating System: Ubuntu 9.x, Debian 4.x
 PHP Version:      5.3.2

 New Comment:

Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

http://derickrethans.nl/obtaining-the-next-month-in-php.html


Previous Comments:
------------------------------------------------------------------------
[2010-03-30 14:32:43] ml at stefanbongartz dot de

Description:
------------
On March 30th and 31th the date function does not work correctly. If you
work with date("m")-1 the result is not 02 for the month. You get 03 for
the month but 02 for the day!!



If you change the system clock to another date the funtion works
correctly. See code below. 



If you set the clock to Apr 30th and use date('m')-2 you get the same
wrong result.

Test script:
---------------
echo "<br>today: ". $today  = mktime(0, 0, 0, date("m")  , date("d"),
date("Y"));

echo "<br>". date('d.m.Y', $today);

echo "<br>";



echo "<br>tomorrow: ". $tomorrow  = mktime(0, 0, 0, date("m")  ,
date("d")+1, date("Y"));

echo "<br>". date('d.m.Y', $tomorrow);

echo "<br>";



echo "<br>last1month: ". $lastmonth = mktime(0, 0, 0, date("m")-1,
date("d"),   date("Y"));

echo "<br>". date('d.m.Y', $lastmonth);

echo "<br>";



echo "<br>last2month: ". $lastmonth = mktime(0, 0, 0, date("m")-2,
date("d"),   date("Y"));

echo "<br>". date('d.m.Y', $lastmonth);

echo "<br>";



echo "<br>last3month: ". $lastmonth = mktime(0, 0, 0, date("m")-3,
date("d"),   date("Y"));

echo "<br>". date('d.m.Y', $lastmonth);

echo "<br>";



Expected result:
----------------
30.02.2010

Actual result:
--------------
02.03.2010


------------------------------------------------------------------------



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