[英]Delete Xml data using php
如何使用php删除xml上的特定元素
my.xml
<usr>
<uid trk= "1234">
<deleteThis>
<mychild>here</mychild>
<anotherchild>here</anotherchild>
</deleteThis>
</uid>
</usr>
我想删除“deleteThis”元素及其子元素
结果:
<usr>
<uid trk= "1234">
</uid>
</usr>
这是我的无效代码
的index.php
$xml = new DOMDocument;
$xml->load('my.xml');
$thedocument = $xml->documentElement;
$list = $thedocument->getElementsByTagName('uid');
foreach ($list as $domElement){
$attrValue = $domElement->getAttribute('trk');
if ($attrValue == "1234") { //if <uid trk= "1234">
$valY = $domElement->getElementsByTagName('deleteThis');
$thedocument->removeChild($valY);
}
}
$xml->save("my.xml");
似乎找不到该节点。
if ($attrValue == "1234") { //if <uid trk= "1234">
$valY = $domElement->getElementsByTagName('deleteThis');
//$valY is a DOMNodeList, that you happen to know there is only one doesnt matter
foreach($valY as $delnode){
$delnode->parentNode->removeChild( $delnode);
}
}
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