annoying DOM limitation

>> >> 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.