array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'domnode.appendchild.php', 1 => 'DOMNode::appendChild', 2 => 'Adds new child at the end of the children', ), 'up' => array ( 0 => 'class.domnode.php', 1 => 'DOMNode', ), 'prev' => array ( 0 => 'class.domnode.php', 1 => 'DOMNode', ), 'next' => array ( 0 => 'domnode.c14n.php', 1 => 'DOMNode::C14N', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/dom/domnode/appendchild.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

DOMNode::appendChild

(PHP 5, PHP 7, PHP 8)

DOMNode::appendChild — Adds new child at the end of the children

说明

public DOMNode::appendChild(DOMNode $node): DOMNode|false

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.

参数

node

The appended child.

返回值

The node added or false on error.

错误／异常

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.

示例

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();
?>

参见