script warnings...

I have a script that the form action points back at itself. Under Linux/Apache/PHP4 this works fine. Under Win32/Apache/PHP4 it gives warnings. <code snippet> if ($url) { do some stuff } <input type="text" name="url"> Julie -- [ Julia Anne Case ] [ Ships are safe inside the harbor, ] [Programmer at large] [ but is that what ships are really for. ] [ Admining Linux ] [ To thine own self be true. ] [ Windows/WindowsNT ] [ Fair is where you take your cows to be judged. ]