Re: annoying DOM limitation

On May 13, 2005, at 5:29 PM, Jared Williams wrote:

While hacking on a PHPDoc -> WSDL generator, I ran into an annoying limitation in the dom extension: you can't add a namespace to a dom document unless you have an element in that namespace. Why might you want to do this? Well, a common thing is to have your xml-schema types to be specified as attribute values, i.e. <element name="foo" type="xsd:string"/> for this to work I need xsd to be an alias for http://www.w3.org/2001/ XMLSchema. To work around this, I added a DomElement::addNS($uri, $alias) method to Dom. Adding the namespace 'manually' as an attribute on an element does not work. I know this isn't part of the Dom spec, but it's incredibly useful. Does anyone (Rob, Chegru) mind me adding it to HEAD?

Hmm, I have been doing this via setAttributeNS(), with the XML namespace namepace define('NS_NS', 'http://www.w3.org/2000/xmlns/'); define('NS_XLINK', 'http://www.w3.org/1999/xlink'); $document = new DOMDocument(); $root = $document->createElement('root'); $document->appendChild($root); $root->setAttributeNS(NS_NS, 'xmlns:xlink', NS_XLINK); echo $document->saveXML(); Haven't encountered any problems with this method, seems to produce XML (SVG in this case) fine.

Apparently I had one too many margaritas yesterday while I was writing this. Whatever I was doing to trigger my error, your methods work.