DOMNode->insertBefore()
(no version information, might be only in CVS)
DOMNode->insertBefore() -- Adds a new child before a reference node说明
class DOMNode {DOMNode insertBefore ( DOMNode newnode [, DOMNode refnode] )
}
This function inserts a new node right before the reference node. If you plan to do further modifications on the appended child you must use the returned node.
参数
- newnode
The new node.
- refnode
The reference node. If not supplied, newnode is appended to the children.
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 append 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 refnode is not a child of this node.