DOMElement::replaceChildren

(PHP 8 >= 8.3.0)

DOMElement::replaceChildren — Replace children in element

说明

public DOMElement::replaceChildren(DOMNode|string ...$nodes): void

Replaces the children in the element with new nodes.

参数

nodes: The nodes replacing the children. Strings are automatically converted to text nodes.

返回值

没有返回值。

错误／异常

DOM_HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of one of the passed nodes, or if the node to put in is one of this node's ancestors or this node itself.
DOM_WRONG_DOCUMENT_ERR: Raised if one of the passed nodes was created from a different document than the one that created this node.

更新日志

版本	说明
8.3.0	Calling this method on a node without an owner document now works. Previously this threw a DOMException with code `DOM_HIERARCHY_REQUEST_ERR`.

示例

示例 #1 DOMElement::replaceChildren() example

Replaces the children with new nodes.

<?php
$doc = new DOMDocument;
$doc->loadXML("<container><hello/></container>");
$container = $doc->documentElement;

$container->replaceWith("beautiful", $doc->createElement("world"));

echo $doc->saveXML();
?>

以上示例会输出：

<?xml version="1.0"?>
beautiful
<world/>

参见

DOMParentNode::replaceChildren() - Replace children in node
DOMElement::replaceWith() - Replaces the element with new nodes
DOMElement::after() - Adds nodes after the element
DOMElement::before() - Adds nodes before the element
DOMElement::remove() - Removes the element

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