How to delete xml node in php-PHP Problem-php.cn

How to delete xml node in php

藏色散人

Release： 2023-03-02 11:48:01

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php method to delete xml nodes: first traverse all bird nodes and all attributes of each bird node; then modify the node value; finally delete the node through the "removeChild" method.

How to delete xml node in php

php xml reads, edits, and deletes nodes

The code is as follows:

$doc = new DOMDocument();
$doc->load(&#39;bird_base.xml&#39;);
$root = $doc->getElementsByTagName(&#39;birdList&#39;);
$root = $root->item(0);
$bird = $root->getElementsByTagName(&#39;bird&#39;);
//遍历所有 bird 节点
foreach ($bird as $rootdata) {
//遍历每一个 bird 节点所有属性
    $speciesID= $rootdata->getElementsByTagName(&#39;speciesID&#39;)->item(0)->nodeValue;
    $localName= $rootdata->getElementsByTagName(&#39;localName&#39;)->item(0)->nodeValue;
    $engName= $rootdata->getElementsByTagName(&#39;engName&#39;)->item(0)->nodeValue;
    $latinName= $rootdata->getElementsByTagName(&#39;latinName&#39;)->item(0)->nodeValue;
    $bird = $this->bird->get_bird_detail($speciesID);
    if(!empty($bird))
    {
        //修改节点值
        $rootdata->getElementsByTagName(&#39;localName&#39;)->item(0)->nodeValue = $bird[&#39;localName&#39;];
        $rootdata->getElementsByTagName(&#39;engName&#39;)->item(0)->nodeValue = $bird[&#39;engName&#39;];
        $rootdata->getElementsByTagName(&#39;latinName&#39;)->item(0)->nodeValue = $bird[&#39;latinName&#39;];
    }else
    {
        //删除节点
        $rootdata->parentNode->removeChild($rootdata);
    }
}
$doc->save(&#39;bird_base.xml&#39;);
bird_base.xml 示例
<?xml version="1.0" encoding="UTF-8"?>
<birdList>
<bird>
<speciesID>1</speciesID>
<localName>雪鹑</localName>
<engName>Snow Partridge</engName>
<latinName>Lerwa lerwa</latinName>
</bird>
<bird>
<speciesID>2</speciesID>
<localName>藏雪鸡</localName>
<engName>Tibetan Snowcock</engName>
<latinName>Tetraogallus tibetanus</latinName>
</bird>
</birdList>

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