php5 - dom xml difficulty

[Snx]

can someone help me understand why i get nothing if I change $root from documentElement to getElementsByTagName('tagname')? the result when the function is called but the echo returns empty...

snx!

    $dom = new DomDocument();
    $dom->load('xml/index.xml');
    $root = $dom->documentElement;  //  <----- arghh!!!
    process_children($root);

function process_children($node)
{
    $children = $node->childNodes;

    foreach ($children as $elem) {
        if ($elem->nodeType == XML_TEXT_NODE) {
            if (strlen(trim($elem->nodeValue))) {
                echo trim($elem->nodeValue)."\n";
            }
        } else if ($elem->nodeType == XML_ELEMENT_NODE) {
            process_children($elem);
        }
    }
}

[_theworks]

have u tried using [man]simpleXML_load_file[/man] ? simpleXML comes standard in php5 also you might want to read this Zend Technologies - PHP 5 In Depth - SimpleXML

[Weedpacket]

"the result when the function is called but".... The result what? Is the same? Isn't the same? Is correct? Is wrong? Is orange?

I get output when I use the code you posted. If I change documentElement to getElementsByTagname I get an error, but that's not surprising because getElementsByTagname doesn't return an element.

[marque]

hey snx,

getElementsByTagName returns an node list not an element hense the plural "Elements"

use item method eg getElementsByTagName('tagname')->item(0) which returns an element that you can use in your function.

[andrew_embassy]

marque wrote:

hey snx,

getElementsByTagName returns an node list not an element hense the plural "Elements"

use item method eg getElementsByTagName('tagname')->item(0) which returns an element that you can use in your function.

Damn, I was so excited to be able to answer this, and here Marque nails it.