Warum funktioniert fopen("http://.....") nicht?

[Robert]

Halli

$fp =  fopen('http://forum.de.selfhtml.org', "r");

Welche PHP-Version?

Vielleicht trifft ja das hier zu:
Redirects have been supported since PHP 4.0.5; if you are using an earlier version you will need to include trailing slashes in your URLs.

cu,
Robert