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 simpleXML_load_file ? simpleXML comes standard in php5 also you might want to read this Zend Technologies - PHP 5 In Depth - SimpleXML (http://www.zend.com/php5/articles/php5-simplexml.php)

[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]

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.