On page 275 the second grey block replace:
    echo "<A HREF=$PHP_SELF>....
with
    echo "<A HREF=\"PHP_SELF\">....
Especially if you have a space in your directory name.
Same problem in the last grey block on page 274.
In the first grey block on this page it's done correct.

You're forgetting your $ in front of "PHP_SELF" in your quoted version.

To be more correct, you should use lower-case HTML tag and attribute names, and you should use the $_SERVER superglobal:

echo "<a href=\"{$_SERVER['PHP_SELF']}\">...";


Take care,

Nik
http://www.bigaction.org/