From 957fcfac4b439fe05ffd399a89c09281242a94d0 Mon Sep 17 00:00:00 2001
From: Zeev Suraski <zeev@php.net>
Date: Thu, 24 Jul 2003 08:04:20 +0000
Subject: [PATCH] MFH fix for bug #19613

---
 ext/standard/basic_functions.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index ba56dce306..ac81fc84ce 100644
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -937,6 +937,8 @@ static void php_putenv_destructor(putenv_entry *pe)
 	} else {
 # if HAVE_UNSETENV
 		unsetenv(pe->key);
+# elif defined(PHP_WIN32)
+		SetEnvironmentVariable(pe->key, NULL);
 # else
 		char **env;
 
-- 
2.50.1