From:             liber at iproom dot com
Operating system: Windows XP
PHP version:      5.1.2
PHP Bug Type:     *General Issues
Bug description:  putenv("TZ") frequent will cause the apache crash

Description:
------------
if putenv("TZ=some time zone") then
putenv("TZ=")
will cause the apache crash.

this only occur if this commmand executes frequent,
and only on Windows platform.

Reproduce code:
---------------
<?php

putenv("TZ=CST-8");
putenv("TZ=");
echo time();
?>

Expected result:
----------------
display the timestamp

Actual result:
--------------
if executes frequent and quickly (maybe more than 20-30 times)
the apache will popup crash messages.

-- 
Edit bug report at http://bugs.php.net/?id=36819&edit=1
-- 
Try a CVS snapshot (PHP 4.4): 
http://bugs.php.net/fix.php?id=36819&r=trysnapshot44
Try a CVS snapshot (PHP 5.1): 
http://bugs.php.net/fix.php?id=36819&r=trysnapshot51
Try a CVS snapshot (PHP 6.0): 
http://bugs.php.net/fix.php?id=36819&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=36819&r=fixedcvs
Fixed in release:             
http://bugs.php.net/fix.php?id=36819&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=36819&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=36819&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=36819&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=36819&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=36819&r=notwrong
Not enough info:              
http://bugs.php.net/fix.php?id=36819&r=notenoughinfo
Submitted twice:              
http://bugs.php.net/fix.php?id=36819&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=36819&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=36819&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=36819&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=36819&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=36819&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=36819&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=36819&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=36819&r=mysqlcfg

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