Traversing a DOM with PHP - php

Question

I want to find in a specific site an element within the DOM.
Inside the DOM there is a tag called "cufon".
assume the url is http://www.xyzw.com/
The code i use is the following:
$dom = new DOMDocument();
#$dom->loadHTMLFile('http://www.xyzw.com/');
$teams = $dom->getElementById('cufon');
at this point the $teams var suppose to contain all of the cufon elements inside the DOM but it contains nothing if i try to find for "div" elements it does find it all.
What is the problem?

Answer 1

If, as you say, there is a TAG called cufontext then trying to find a collection of nodes using one ID would only return one element ( IDs need to be unique ) so perhaps you want to find all elements of the specified tagname??
$dom = new DOMDocument();
$dom->loadHTMLFile('http://www.xyzw.com/');
$teams = $dom->getElementsByTagName('cufontext');
if( $teams ){
foreach($teams as $team){
/* do stuff */
}
}
As we have not been given the actual url involved I had to test like this:-
/* random url - just happened to be open in browser just now */
$url='http://www.interparcel.com/';
/* the tag to search for */
$tag='div';
$dom = new DOMDocument();
$dom->loadHTMLFile( $url );
$teams = $dom->getElementsByTagName( $tag );
/* As pointed out by #Pieter it would have always returned true so additional check */
if( $teams && $teams->length > 0 ){
foreach($teams as $team){
echo $team->nodeValue;
}
}
This will spit out lots of content from the remote url - so if you are unable to find a tag called cufontext I'd suggest confirming there are tags of that name