Php/docs/domnode.removechild

• PHP Manual
• DOMNode
• Removes child from list of children

DOMNode::removeChild

(PHP 5, PHP 7)

DOMNode::removeChild — Removes child from list of children

说明

public DOMNode::removeChild ( DOMNode $oldnode ) : DOMNode

This functions removes a child from a list of children.

参数

oldnode

The removed child.

返回值

If the child could be removed the function returns the old child.

错误／异常

DOM_NO_MODIFICATION_ALLOWED_ERR

Raised if this node is readonly.

DOM_NOT_FOUND

Raised if oldnode is not a child of this node.

范例

The following example will delete the chapter element of our XML document.

Example #1 Removing a child

<?php$doc = new DOMDocument;$doc->load('book.xml');$book = $doc->documentElement;// we retrieve the chapter and remove it from the book$chapter = $book->getElementsByTagName('chapter')->item(0);$oldchapter = $book->removeChild($chapter);echo $doc->saveXML();?>

以上例程会输出：

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN" 
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<book id="listing">
 <title>My lists</title>
 
</book>

参见

• DOMNode::appendChild() - Adds new child at the end of the children
• DOMNode::replaceChild() - Replaces a child