提取xml @attributes php

Question

我试图从xml中提取数据属性[value]，$ xml-＆gt; xpath（＆＃34; / products＆＃34;）显示：

 [categories] => SimpleXMLElement Object ( [category] => Zapas ) 

[properties] => SimpleXMLElement Object ( 
[property] => 
    Array ( 
    [0] => SimpleXMLElement Object ( [@attributes] => 
        Array ( 
            [name] => VAL) 
            [value] => 1111111 ) 
    [1] => SimpleXMLElement Object ( [@attributes] => 
        Array ( 
            [name] => manufacturer ) 
            [value] => Nike) 
    [2] => SimpleXMLElement Object ( [@attributes] => 
        Array ( 
            [name] => condition ) 
            [value] => new ) 
    [3] => SimpleXMLElement Object ( [@attributes] => 
        Array ( 
            [name] => deliveryCosts ) 
            [value] => 0.00 ) 
    [4] => SimpleXMLElement Object ( [@attributes] => 
        Array ( 
            [name] => stock ) 
            [value] => in stock ) 
    ) )

我使用下一代码来提取xml值：

$xml =  simplexml_load_file("http://productType=2",'SimpleXMLElement'); 
foreach($xml->product as $file){ 
$file->categories->category; 
$file->properties????
}

问题：我无法从：

中提取Nike

[properties] => SimpleXMLElement Object ( 
    [property] => 
      Array ( 
         [0] => SimpleXMLElement Object ( [@attributes] => 
              Array (
                 [1] => SimpleXMLElement Object ( [@attributes] => 
                      Array ( 
                            [name] => manufacturer ) 
                            [value] => Nike)...

使用

$brand= (string)$file->properties->property[1]->attributes() 

我有制造商数据（名称），但是

$brand= (string)$file->properties->property[1]->attributes()->value

无法获得耐克（价值）

我怎样才能获得属性[value]数据？ 提前致谢