Fix bug #19613

diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index 3466aaad7c8f6c91c274f3c3ff689f9c20dd8159..37dc4a2cc1410d4c56a7c20e336447dba2cd3b60 100644 (file)
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -973,6 +973,8 @@ 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;