DOMNode::removeChild
(PHP 5, PHP 7, PHP 8)
DOMNode::removeChild — Removes child from list of children
說明
This functions removes a child from a list of children.
參數
-
child -
The removed child.
返回值
If the child could be removed the function returns the old child.
錯誤／異常
-
DOM_NO_MODIFICATION_ALLOWED_ERR -
Raised if this node is readonly.
-
DOM_NOT_FOUND -
Raised if
childis not a child of this node.
範例
The following example will delete the chapter element of our XML document.
示例 #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();
?>
以上例程會輸出：
<?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>
參見
- DOMChildNode::remove() - Removes the node
- DOMNode::appendChild() - Adds new child at the end of the children
- DOMNode::replaceChild() - Replaces a child