(PHP 5, PHP 7)
DOMNode::appendChild — Adds new child at the end of the children
This function appends a child to an existing list of children or creates a new list of children. The child can be created with e.g. DOMDocument::createElement(), DOMDocument::createTextNode() etc. or simply by using any other node.
newnodeThe appended child.
The node added.
DOM_NO_MODIFICATION_ALLOWED_ERRRaised 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.
The following example will add a new element node to a fresh document.
Example #1 Adding a child
<?php
$doc = new DOMDocument;
$node = $doc->createElement("para");
$newnode = $doc->appendChild($node);
echo $doc->saveXML();
?>