DOMNode->replaceChild()
说明
class DOMNode {DOMNode replaceChild ( DOMNode newnode, DOMNode oldnode )
}
This function replaces the child oldnode with the passed new node. If the new node is already a child it will not be added a second time. If the replacement succeeds the old node is returned.
参数
- newnode
The new node. It must be a member of the target document, i.e. created by one of the DOMDocument->createXXX() methods or imported in the document by DOMDocument->importNode().
- oldnode
The old node.
异常
- DOM_NO_MODIFICATION_ALLOWED_ERR
Raised if this node is readonly or if the previous parent of the node being inserted is readonly.
- DOM_HIERARCHY_REQUEST_ERR
Raised if this node is of a type that does not allow children of the type of the newnode node, or if the node to put in is one of this node's ancestors or this node itself.
- DOM_WRONG_DOCUMENT_ERR
Raised if newnode was created from a different document than the one that created this node.
- DOM_NOT_FOUND
Raised if oldnode is not a child of this node.