(PHP 4 >= 4.3.0)
DomNode::add_namespace — Adds a namespace declaration to a node
$uri
, string $prefix
)This method adds a namespace declaration to a node.
Note:
This method is not part of the DOM specification.
uri
The namespace URI of the node.
prefix
The namespace prefix of the node.
成功时返回 TRUE， 或者在失败时返回 FALSE.
You can set the namespace URI and prefix of a DOMElement or a DOMAttr at creation time by using DOMDocument::createElementNS or DOMDocument::createAttributeNS.
Note:
Remember the an attribute does not inherit its namespace from the element it is attached to.