#19613 [Asn->Csd]: putenv("VAR=") does not empty VAR on win32
ID: 19613
Updated by: zeev@php.net
Reported By: six at aegis-corp dot org
-Status: Assigned
+Status: Closed
Bug Type: Other web server
Operating System: Win2K
PHP Version: 4.2.3
Assigned To: sfox
New Comment:
This bug has been fixed in CVS.
In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot at http://snaps.php.net/.
In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.
In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites in short time.
Thank you for the report, and for helping us make PHP better.
Previous Comments:
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[2003-07-23 16:29:30] sfox@php.net
Patch sent to internals@
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[2003-06-23 02:10:41] ruta at teltec dot de
Same Problem on WIN 2000 Server with Apache2. Thanks...
Krietinks
Thomas Ruta
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[2002-09-26 08:32:37] six at aegis-corp dot org
It appears that in Win32 (with php-cli.exe), the putenv function works
quite strangely.
When you call putenv("VAR="), this sould empty the "VAR" environment
variable. And it almost does it, because a call to getenv("VAR") will
return an empty string. However, the real env is not changed and VAR is
still set to its old value.
This small script (and its output) demonstrate the problem :
C:\php>php-cli
<?
putenv("TEST=ZOB1");
echo getenv("TEST")."\n"; // "ZOB1"
system("echo %TEST%"); // "ZOB1"
putenv("TEST=");
echo getenv("TEST")."\n"; // ""
system("echo %TEST%"); // "ZOB1" <- should be empty !
putenv("TEST=ZOB2");
echo getenv("TEST")."\n"; // "ZOB2"
system("echo %TEST%"); // "ZOB2"
?>
ZOB1
ZOB1
ZOB1
ZOB2
ZOB2
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