SimpleXML 节点名称中包含空格和等号

Question

我有一个 xml 文档，其中节点名称中包含空格和等号。我正在尝试使用 SimpleXML 从这些节点中提取数据，但无论我尝试什么，它都会返回空白。

示例

  <code><away>
  <radio>url.here</radio> 
  <live bitrate="1">url.here</live> 
  <live bitrate="0">url.here</live> 
  </away></code>

我尝试使用echo "".$node->away->{'live bitrate="1"'}.""; 的 xml 文档 echo "".$node->away->{'live'}->{'bitrate="1"'}."";

Answer 1

这是我用来将 SimpleXML 对象转换为数组的函数：

        public function simpleXMLToArray($xml,
                    $flattenValues=true,
                    $flattenAttributes = true,
                    $flattenChildren=true,
                    $valueKey='@value',
                    $attributesKey='@attributes',
                    $childrenKey='@children'){

            $return = array();
            if(!($xml instanceof SimpleXMLElement)){return $return;}
            $name = $xml->getName();
            $_value = trim((string)$xml);
            if(strlen($_value)==0){$_value = null;};

            if($_value!==null){
                    if(!$flattenValues){$return[$valueKey] = $_value;}
                    else{$return = $_value;}
            }

            $children = array();
            $first = true;
            foreach($xml->children() as $elementName => $child){
                    $value = $this->simpleXMLToArray($child, $flattenValues, $flattenAttributes, $flattenChildren, $valueKey, $attributesKey, $childrenKey);
                    if(isset($children[$elementName])){
                            if($first){
                                    $temp = $children[$elementName];
                                    unset($children[$elementName]);
                                    $children[$elementName][] = $temp;
                                    $first=false;
                            }
                            $children[$elementName][] = $value;
                    }
                    else{
                            $children[$elementName] = $value;
                    }
            }
            if(count($children)>0){
                    if(!$flattenChildren){$return[$childrenKey] = $children;}
                    else{$return = array_merge($return,$children);}
            }

            $attributes = array();
            foreach($xml->attributes() as $name=>$value){
                    $attributes[$name] = trim($value);
            }
            if(count($attributes)>0){
                    if(!$flattenAttributes){$return[$attributesKey] = $attributes;}
                    else{$return = array_merge($return, $attributes);}
            }

            return $return;
    }