Hi Frank,
Frank Arensmeier wrote:
> Jochem, thank you for your input!
>
> So, right now I am able to access all text nodes by e.g.
>
> $nodeElement -> parentNode -> childNodes -> item(0); -> returns Lenght,
> Width and so on
> $nodeElement -> parentNode -> childNodes -> item(1); -> is empty
> $nodeElement -> parentNode -> childNodes -> item(2); -> returns mm,
kg ...
>
> and so on. Or is there an easier way? When trying to acces the items by
>
> ($nodeElement containing text nodes)
>
> $nodeElemtent -> item(0);
>
> I get the following error message: Call to undefined method
> DOMText::item()...
Only a nodelist and namenodemap has the item() method.
You could also do something like the following - note that manually
walking the tree is much faster than iterating a nodelist - (there are
also many different variations of this code depending upon what you need
to do with the subtree):
$node = $nodeElement->parentNode->firstChild;
while ($node) {
/* only process text or element nodes here */
if ($node->nodeType == XML_TEXT_NODE) {
$node->nodeValue = 'New text content'; /* modify text content */
} else if ($node->nodeType == XML_ELEMENT_NODE) {
/* node is element - process its subtree or move on i.e.: */
if ($node->hasChildNodes()) {
foreach ($node->childNodes AS $child) {
/* process child nodes here */
}
}
}
$node = $node->nextSibling;
}
>
> BTW, is there an easy way to get the total amount of items in a curent
> node? count ( $nodeElement -> parentNode -> childNodes ) always returns
> 1. For now the only solution I know of is looping through the
> nodeElements (e.g. foreach ( $nodeElement as $value ) and have a counter
> inside the loop.
$count = $nodeElement->parentNode->childNodes->length;
This property is only available from a nodelist or namednodemap.
>
> Thank you so far.
> /frank
>
> ps. I am desperately looking for some good sites covering the PHP DOM
> functions. On www.php.net/dom there are barely some examples. And on
> www.zend.com I only found one article with very, very basic examples.
> Any ideas/suggestions are more than welcome. ds.
You can pretty much search for examples from any DOM implementation
since its a standard (not too difficult to go from one language to
another when using DOM). For PHP specific ones, there are a number of
tests in the CVS repository that demonstrate much of the functionality:
http://cvs.php.net/viewcvs.cgi/php-src/ext/dom/tests/
One particular test that uses a good amount of the API (though the basic
functions) is dom001.phpt:
http://cvs.php.net/viewcvs.cgi/php-src/ext/dom/tests/dom001.phpt?view=markup&rev=1.4
Rob
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