Searching Multiple Elements In XML File - php

Question

I'm using the W3C Live Ajax Search found here. Their code only searches one element, the "title". I would like to have it take the user's query and search through multiple elements, for example, the 'title' and the 'url'.
<?php
$xmlDoc=new DOMDocument();
$xmlDoc->load("live.xml");
$x=$xmlDoc->getElementsByTagName('link');
//get the q parameter from URL
$q=$_GET["q"];
//lookup all links from the xml file if length of q>0
if (strlen($q)>0)
{
$hint="";
for($i=0; $i<($x->length); $i++)
{
$d=$x->item($i)->getElementsByTagName('title');
$z=$x->item($i)->getElementsByTagName('url');
if ($d->item(0)->nodeType==1)
{
//find a link matching the search text
if (stristr($d->item(0)->childNodes->item(0)->nodeValue,$q) !=false)
{
if ($hint=="")
{
$hint=
$z->item(0)->childNodes->item(0)->nodeValue . "<br />" .
$d->item(0)->childNodes->item(0)->nodeValue;
}
else
{
$hint=$hint . "<br /><br />" .
$z->item(0)->childNodes->item(0)->nodeValue . "<br />" .
$d->item(0)->childNodes->item(0)->nodeValue;
}
}
}
}
}
// Set output to "no suggestion" if no hint were found
// or to the correct values
if ($hint=="")
{
$response="no suggestion";
}
else
{
$response=$hint;
}
//output the response
echo $response;
?>
Can somebody give me an example of how to make it work? From what I understand, stristr will only search one haystack and you can't use arrays, so is there another way? Thanks in advance!

Answer 1

Well, I figured out a way:
if ( (stristr($d->item(0)->childNodes->item(0)->nodeValue,$q) !=false) ||
(stristr($z->item(0)->childNodes->item(0)->nodeValue,$q) !=false) )
I doubt this is the optimal way, so if anybody has a better solution feel free to add it.