php将xml转换为数组

1. 函数：

   /*
   @desc：xml转数组
   @param data xml字符串
   @return arr 解析出的数组
   */
   function xmltoarray($data){
   $obj = simplexml_load_string($data, 'SimpleXMLElement', LIBXML_NOCDATA);
   $json = json_encode($obj);
   $arr = json_decode($json, true);      
   return $arr;
   }

2. 测试：
   a. 代码：

    
   
   
   Joe
   Jane
   
   I know that's the answer -- but what's the question?
   
   
   XML;
   $arr = xmltoarray($string);
   var_dump($arr);

   b. 输出：

   array(4) {
   ["title"]=>
   string(11) "Forty What?"
   ["from"]=>
   string(3) "Joe"
   ["to"]=>
   string(4) "Jane"
   ["body"]=>
   string(57) "
   I know that's the answer -- but what's the question?
   "
   }