From:             hlegius at gmail dot com
Operating system: Linux
PHP version:      5.2.10
PHP Bug Type:     Date/time related
Bug description:  strtotime and mktime

Description:
------------
I expected the last day of given timestamp, but when mktime is the second
argument of strtotime this do not happens. So, I need save mktime's result
in a variable to use it later in strtotime

Reproduce code:
---------------
<?php
// FAIL !
        $timestamp = time();

        for ($i = 0; $i<10; $i++) {
                $timestamp = strtotime('yesterday', mktime(0,0,0, (date('n', 
$timestamp)
+ 1), 1, date('Y')));
                
                var_dump(date('d/m/Y', $timestamp));
        }
?>

<?php
// It's works !
        $timestamp = time();

        for ($i = 0; $i<10; $i++) {
                $timestamp = mktime(0,0,0, (date('n', $timestamp) + 1), 1, 
date('Y'));
                
                var_dump(date('d/m/Y', strtotime('yesterday', $timestamp))); // 
here, we
have a $timestamp
        }
?>

Expected result:
----------------
string '30/06/2009' (length=10)
string '31/07/2009' (length=10)
string '31/08/2009' (length=10)
string '30/09/2009' (length=10)
string '31/10/2009' (length=10)
string '30/11/2009' (length=10)
string '31/12/2009' (length=10)
string '31/01/2009' (length=10)
string '28/02/2009' (length=10)
string '31/03/2009' (length=10)

Actual result:
--------------
Output of first Code:

string '30/06/2009' (length=10)
string '30/06/2009' (length=10)
string '30/06/2009' (length=10)
string '30/06/2009' (length=10)
string '30/06/2009' (length=10)
string '30/06/2009' (length=10)
string '30/06/2009' (length=10)
string '30/06/2009' (length=10)
string '30/06/2009' (length=10)
string '30/06/2009' (length=10)


Output of second code:

string '30/06/2009' (length=10)
string '31/07/2009' (length=10)
string '31/08/2009' (length=10)
string '30/09/2009' (length=10)
string '31/10/2009' (length=10)
string '30/11/2009' (length=10)
string '31/12/2009' (length=10)
string '31/01/2009' (length=10)
string '28/02/2009' (length=10)
string '31/03/2009' (length=10)


-- 
Edit bug report at http://bugs.php.net/?id=48698&edit=1
-- 
Try a CVS snapshot (PHP 5.2):        
http://bugs.php.net/fix.php?id=48698&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):        
http://bugs.php.net/fix.php?id=48698&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):        
http://bugs.php.net/fix.php?id=48698&r=trysnapshot60
Fixed in CVS:                        
http://bugs.php.net/fix.php?id=48698&r=fixedcvs
Fixed in CVS and need be documented: 
http://bugs.php.net/fix.php?id=48698&r=needdocs
Fixed in release:                    
http://bugs.php.net/fix.php?id=48698&r=alreadyfixed
Need backtrace:                      
http://bugs.php.net/fix.php?id=48698&r=needtrace
Need Reproduce Script:               
http://bugs.php.net/fix.php?id=48698&r=needscript
Try newer version:                   
http://bugs.php.net/fix.php?id=48698&r=oldversion
Not developer issue:                 
http://bugs.php.net/fix.php?id=48698&r=support
Expected behavior:                   
http://bugs.php.net/fix.php?id=48698&r=notwrong
Not enough info:                     
http://bugs.php.net/fix.php?id=48698&r=notenoughinfo
Submitted twice:                     
http://bugs.php.net/fix.php?id=48698&r=submittedtwice
register_globals:                    
http://bugs.php.net/fix.php?id=48698&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=48698&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=48698&r=dst
IIS Stability:                       
http://bugs.php.net/fix.php?id=48698&r=isapi
Install GNU Sed:                     
http://bugs.php.net/fix.php?id=48698&r=gnused
Floating point limitations:          
http://bugs.php.net/fix.php?id=48698&r=float
No Zend Extensions:                  
http://bugs.php.net/fix.php?id=48698&r=nozend
MySQL Configuration Error:           
http://bugs.php.net/fix.php?id=48698&r=mysqlcfg

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