I'm using NetBeans IDE 6.5m1 Dev 200807040101 and programming strict object-oriented with PHP 5.2.6. I created a new PHP
file to make a simple XHTML web page embedding style (CSS, screen and print) and script (JavaScript, jQuery) tags. There
is no PHP code at all because I'm working on the user interface first (presentation layer). I found that the editor
giving me a wavy underline and the tooltip is in the context of PHP. Even though, the wavy underline is outside of the
PHP tags (<?php ?>) or even when there is no PHP tags. The editor tooltips are "unused" and "missing } function body"
with red exclamation mark icon.

I'm attaching or linking a zipped file of my underdeveloped PHP file. Try moving the XHTML comments (<!-- -->) to the
next line and back. The editor will give a red wavy underline and the tooltip will say "missing } function body".

http://www.williamchang.org/debug/netbeans65m1_bug1_20080727.zip