XML解析：標籤應該是數值數組？

Question

<?php 
/* 
    Sample: $results = XMLParser::load('<xml ....'); 
      $results = XMLParser::load(VSCHEMAS.'/Users.edit.xml'); 
*/ 

    /** 
    * Abstract XMLParser class. A non-instantiable class that uses SimpleXML to parse XML, based on a path or body passed into the load method 
    * 
    * @abstract 
    */ 
    abstract class XMLParser { 

     /** 
     * convert function. Converts a SimpleXMLElement object to an associative array, usable for iteration 
     * 
     * @see http://www.if-not-true-then-false.com/2009/12/php-tip-convert-stdclass-object-to-multidimensional-array-and-convert-multidimensional-array-to-stdclass-object/ 
     * @access private 
     * @static 
     * @param mixed $node node to convert to a non-object based value 
     * @return array associative array of the passed in node/object, ultimately representing the initially passed in object as an associative array 
     */ 
     private static function convert($node) { 
      if(is_object($node)) 
       $node = get_object_vars($node); 
      if(is_array($node)) 
       return array_map(array('self', 'convert'), $node); 
      return $node; 
     } 

     /** 
     * load function. Loads a source (either a local path or source body) document, and returns as associative array of it's results 
     * 
     * @access public 
     * @static 
     * @param string $source xml body, or path to local xml file 
     * @return array SimpleXML results, parsed as an associative array 
     */ 
     public static function load($source) { 
      $path = false; 
      if(preg_match('/^\//', $source) > 0) 
       $path = true; 
      $simpleXMLElement = new SimpleXMLElement($source, LIBXML_NOENT, $path); 
      return self::convert($simpleXMLElement); 
     } 
    } 

?> 

我正在使用上面的代碼來解析xml文件並將它們轉換爲更可遍歷的數組。儘管我遇到了一個問題。當我有一些樣本XML，如：

<fields> 
    <rule whatever="lolcats" /> 
</fields> 

與

<fields> 
    <rule whatever="lolcats" /> 
    <rule whatever="lolcats" /> 
</fields> 

結果數組是不相符的。也就是說，在第一種情況下，它的格式爲：

Array 
(
    [field] => Array 
     (
      [@attributes]... 

而在後者，它的格式爲：

Array 
(
    [field] => Array 
     (
      [0]... 

我想說這裏，是它的索引子xml元素的數值，這是我想要的，但只有當超過1.什麼想要改變什麼總是讓它們在數值上進行索引，而不是直接引用單一元素的@attributes數組？

任何幫助將非常感激：d

Answer 1

那麼你不能有一個元素或ATTRIB是一個int如此簡單測試爲數組鍵0然後鍛造你期望應該工作的陣列。

Answer 2

熱潮！我在下面的代碼中玩了幾個小時，最後把它從編輯器中刪除了！特技是環通過與該值的存在引用VARS，如果它確實是一個對象，但關鍵是不是「@屬性」（如上所述）然後再包上的數組：d

/** 
* convert function. Converts a SimpleXMLElement object to an associative array, usable for iteration 
* 
* @see http://www.if-not-true-then-false.com/2009/12/php-tip-convert-stdclass-object-to-multidimensional-array-and-convert-multidimensional-array-to-stdclass-object/ 
* @access private 
* @static 
* @param mixed $node node to convert to a non-object based value 
* @return array associative array of the passed in node/object, ultimately representing the initially passed in object as an associative array 
*/ 
private static function convert($node) { 
    if(is_object($node)) { 
     $vars = get_object_vars($node); 
     foreach($vars as $key => &$var) { 
      if($key!=='@attributes' && is_object($var)) 
       $var = array($var); 
     } 
     $node = $vars; 
    } 
    if(is_array($node)) 
     return array_map(array('self', 'convert'), $node); 
    return $node; 
}