Some links are not correctly rendered/displayed in the funktion reference:
Image functions and Oracle8 functions.
The reason: funtion names inside <function></function> are uppercase.

See below:
Image functions
For example: xml source of function imagearc
    See also <function>ImageEllipse</function>,
    <function>ImageFilledEllipse</function>, and
    <function>ImageFilledArc</function>.

Oracle8 functions
For example: xml source of function OCIDefineByName
<para>
If you need to define an abstract Datatype    (LOB/ROWID/BFILE) you
need to allocate it first using
<function>OCINewDescriptor</function> function. See also the
<function>OCIBindByName</function> function.
</para>

Online to see at:
http://www.php.net/manual/en/function.ocidefinebyname.php

In reply to my mail to PHO-DOC list the answer from Jim Winstead:

>as near as i can tell, the stylesheets should be trying >to do a case-insensitive comparison to avoid this issue. >if that isn't working, it's a bug in the html-common.dsl >stylesheet.
>
> jim

Is this a bug in the stylesheets or should all function names inside <fucntion></function> be lowercase?

Friedhelm Betz