Is there any special reason for setting only LC_CTYPE and not LC_ALL in
main.c? The problem now is that setlocale(LC_ALL, "") is, in fact, how the
locale is reset after the user has changed it with the PHP function
'setlocale' (this is done in PHP_RSHUTDOWN_FUNCTION(basic),
ext/standard/basic_functions.c).
So if I change the locale settings with 'setlocale' in a script, when
the script is finished the locale settings for the Apache process wont
necessary be the same as before the script was run.

One side effect of this is that one process can get different locale
settings then the others. This makes (how I first noticed the problem)
repeated execution of a simple script like this

<?php print(setlocale(LC_ALL, 0)) ?>

produce varying (random, sort of) results. The results here depends of
course on which process happened to serve the request.

Possible fix:

--- main.c.orig Wed Apr 19 23:43:34 2000
+++ main.c      Wed Apr 19 23:43:53 2000
@@ -837,7 +837,7 @@
        PG(connection_status) = PHP_CONNECTION_NORMAL;
 
 #if HAVE_SETLOCALE
-       setlocale(LC_CTYPE, "");
+       setlocale(LC_ALL, "");
 #endif
 
 #ifdef PHP_WIN32