$xml = simplexml_load_file('example.xml');              //创建SimpleXML对象   
    var_dump($xml);                                                             //输出XML   
?> 

    $xml = simplexml_load_file('example.xml');          //读取XML文件   
    foreach($xml->depart as $a)                                    //循环读取XML数据中的每一个depart标签   
    {  
        echo "$a->name
";                                       //输出其中的name属性   
    }  
?> 

    $xml = simplexml_load_file('example.xml');          //读取XML文件   
    echo $xml->depart->name[0];                                  //输出节点   
?> 

    $xml = simplexml_load_file('example.xml');  
    foreach ($xml->depart->children() as $depart)             //循环读取depart标签下的子标签   
    {  
       var_dump($depart);                                                        //输出标签的XML数据   
    }  
?> 

    $xml = simplexml_load_file('example.xml');                      //读取XML文件   
    $result = $xml->xpath('/departs/depart/employees/employee/name');        //定义节点   
    var_dump($result);                                          //输出节点   
?> 

    $xml = simplexml_load_file('example.xml');              //读取XML   
    $xml->depart->name[0] = "Human Resource";         //修改节点   
?> 

    $xml = simplexml_load_file('example.xml');              //读取XML数据   
    echo $xml->asXML();                                                     //标准化XML数据   
?> 

    $xml = simplexml_load_file('example.xml');              //读取XML数据   
    $newxml = $xml->asXML();                         //标准化XML数据   
    $fp = fopen("newxml.xml", "w");                  //打开要写入XML数据的文件   
    fwrite($fp, $newxml);                                    //写入XML数据   
    fclose($fp);                                                     //关闭文件   
?>