(PHP 5, PHP 7, PHP 8)
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.
When using an existing node it will be moved.
nodeThe appended child.
The node added or false on error.
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 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.
The following example will add a new element node to a fresh document.
示例 #1 Adding a child
<?php
$doc = new DOMDocument;
$node = $doc->createElement("para");
$newnode = $doc->appendChild($node);
echo $doc->saveXML();
?>
示例 #2 Nested children
<?php
$doc = new DOMDocument;
$headNode = $doc->createElement("head");
$doc->appendChild($headNode);
$titleNode = $doc->createElement("title");
$headNode->appendChild($titleNode);
echo $doc->saveXML();
?>