When I use a "normal" i.e. htaccess-authenification, apache puts
the username-string into to the (combined) logfile.

When I use the php-authentification, there is no username in
the logfile. So it seems, that apache does not know, that the
user is now authenticated.

Should there perhaps be something like
		GLOBAL(php3_rqst)->connection->user=estrdup(user);

in functions/post.c?

I am using php as a module for apache 1.3.9.