<?php      $xml = simplexml_load_file('example.xml');              //创建SimpleXML对象       var_dump($xml);                                                             //输出XML   ?>  <?php      $xml = simplexml_load_file('example.xml');          //读取XML文件       foreach($xml->depart as $a)                                    //循环读取XML数据中的每一个depart标签       {          echo "$a->name <BR>";                                       //输出其中的name属性       }  ?>  <?php      $xml = simplexml_load_file('example.xml');          //读取XML文件       echo $xml->depart->name[0];                                  //输出节点   ?>  <?php      $xml = simplexml_load_file('example.xml');      foreach ($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       }  ?>  <?php      $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   ?>  <?php      $xml = simplexml_load_file('example.xml');              //读取XML       $xml->depart->name[0] = "Human Resource";         //修改节点   ?>  <?php      $xml = simplexml_load_file('example.xml');              //读取XML数据       echo $xml->asXML();                                                     //标准化XML数据   ?>  <?php      $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   ?>