XPath Search

[Tod M. <tod...@gm...>]

I just found this class and it seems to offer exactly what I want.  I'm new
to it & xpath though so I'm slowly learning how to do things.  I want to
perform a search on my XML database for a string entered by a user.  Say fo=
r
instance "cabinet".  From this I want to search several XML files of the
following structure:

<?xml version=3D"1.0"?>
<!DOCTYPE product PUBLIC "-//RYE//DTD IMAGEDB 1.0 Strict//EN" "component.dt=
d
">
<product>
 <component id=3D"wall_cab">
   <title>Wall Cabinet</title>
   <image src=3D"/images/cabinetry/wall_cab.jpg" />
   <link href=3D"/products/cabinetry/wall.html" />
   <feature>Sturdy double wall door </feature>
   <feature>Door has perforated inside wall for hanging hooks for tools
etc</feature>
   <feature>Solid steel construction 20-Gauge (.036") thick </feature>
   <feature>One shelf included 24" x 10" x 0.6" </feature>
   <keywords>tools sports sporting </keywords>
 </component>
 <component id=3D"component2">
   ...
 </component>
</product>

I have added keywords to enhance the search functionality.  What I want to
do is extract the title, image, and link of any product that contains, in
any tag, the string entered by the user.

I'm not exactly sure how to do this.

Can someone point me in the right direction?  I know it's asking a lot, but
even a quick pointer would help me out.  I'm not a very experienced php
programmer
.
Thanks very much,

Brad