Adds a new child before a reference node

DOMNode::insertBefore

(PHP 5)

DOMNode::insertBefore — Adds a new child before a reference node

Description

public 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.

Parameters

newnode: The new node.
refnode: The reference node. If not supplied, newnode is appended to the children.

Return Values

The inserted node.

Errors/Exceptions

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.

DOMNode::hasChildNodes

DOMNode::isDefaultNamespace

DOMNode

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