我想从我的 XML 文件中删除一个特定的节点,似乎我错过了代码中的某些内容!你能帮我弄清楚吗,例如我想删除标签及其所有内部标签。
XML结构:
<students>
<student>
<username>sally</username>
<subjects>
<subjects>sub1</subjects>
<subjects>sub2</subjects>
<subjects>sub3</subjects>
</subjects>
</student>
<student>
<username>jojo</username>
<subjects>
<subjects>sub1</subjects>
<subjects>sub2</subjects>
<subjects>sub3</subjects>
<subjects>sub4</subjects>
<subjects>sub5</subjects>
</subjects>
</student>
</students>
功能 :
public static function delete_subjects($UserName, $fileName) {
//delete from xml
$xml = new DOMDocument();
$xml->load($fileName);
$users = $xml->getElementsByTagName('student');
foreach ($users as $user) {
$username = $user->getElementsByTagName('username')->item(0)->nodeValue;
if ($username == $UserName) {
$p=$user->getElementsByTagName('subjects')->item(0);
$xml->documentElement->removeNode($p);
break;
}
}
$xml->save($fileName);
}
称呼 :
delete_subjects('jojo', $fileName);