>
> The following pices of code do not work:
>
> -----------------------------------------------------
> code sample 1
> --------------
>
> 1. sub handler {
> 2. my $r = instance Apache::Request(shift);
> 3.
> 4. $r->dir_config(MyVar => undef);
> 5.
> 6. $r->dir_config->unset("MyVar");
> 7.
> 8. $r->dir_config->set(MyVar => undef);
> 9.
> 10. }
>
>
> None of lines 4, 6 or 8 actually unset the variable.
did you try $r->server->dir_config->unset("MyVar") as well?
the dir_config table is a bit strange, since it merges per-server and
per-directory configurations at runtime - from what I remember when
playing with this last time, if you remove it from the per-dir config
but you set it on a per-server config (which sounds like what you are
doing) it will be perpetually re-populated on access to the per-dir
config. so, you may need to wipe both dir_config tables clean in
order to really unset the variable from your handler.
HTH
--Geoff