DOMNode::insertBefore
(PHP 5, PHP 7, PHP 8)
DOMNode::insertBefore —
Adds a new child before a reference node
Description
When using an existing node it will be moved.
Parameters
node-
The new node.
child-
The reference node. If not supplied, node is
appended to the children.
Return Values
The inserted node or false on error.
Errors/Exceptions
May throw a DOMException with the
following error codes:
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 node node, or if the node to
append is one of this node's ancestors or this node itself.
DOM_WRONG_DOCUMENT_ERR-
Raised if node was created from a different
document than the one that created this node.
DOM_NOT_FOUND_ERR-
Raised if child is not a child of this node.
DOMNode::hasChildNodes
DOMNode