PHP implementiert die Methode zum Generieren und Parsen von XML basierend auf SimpleXML

<?php
 header("Content-type: text/html; charset=utf-8");
 $xml=new SimpleXMLElement(&#39;<?xml version="1.0" encoding="utf-8"?><UsersInfo />&#39;);
 $item=$xml->addchild("item");
 $item->addchild("name","冯绍峰");
 $item->addchild("age","30");
 $item2=$xml->addchild("item");
 $item2->addchild("name","潘玮柏");
 $item2->addchild("age","29");
 $item2->addAttribute("id","02");
 header("Content-type: text/xml");
 echo $xml->asXml();
 $xml->asXml("student.xml");
?>

<?php
 header("Content-type: text/html; charset=utf-8");
 $xml=simplexml_load_file("UserInfo.xml");
 //通过children取得根节点下面的子项
 for($i=0;$i<count($xml->children());$i++){
   foreach ($xml->children()[$i] as $key => $value ) {
    echo "$key:$value"."<br/>";
   }
 }
?>

<?xml version="1.0" encoding="UTF-8"?>
<UsersInfo>
 <item>
   <name>潘玮柏</name>
   <address>上海市浦东新区</address>
   <song>快乐崇拜</song>
 </item>
 <item>
   <name>蔡依林</name>
   <address>上海市徐汇区</address>
   <song>独占神话</song>
 </item>
</UsersInfo>