The DOMNode::appendChild() function is an inbuilt function in PHP which is used to appends a child to an existing list of children or creates a new list of children. The child can be created with DOMDocument::createElement(), DOMDocument::createTextNode() or by using any other node.
DOMNode DOMNode::appendChild( DOMNode $newnode )
Parameters:This function accepts a single parameter $newnode which holds the node to append.
Return Value: This function returns the node which is added.
Exceptions: This function throws DOM_NO_MODIFICATION_ALLOWED_ERR, if the node is readonly or if the previous parent of the node being inserted is readonly or DOM_HIERARCHY_REQUEST_ERR, if the 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 or DOM_WRONG_DOCUMENT_ERR, if $newnode was created from a different document than the one that created this node.
Below given programs illustrate the DOMNode::appendChild() function in PHP: