php中的有线多维数组问题

我正在尝试获取rss提要并将节点值推送到数组中。我认为我下面的php代码将创建单个数组，而不是多维数组

 //parse rss
    $contents= file_get_contents('http://rss..');
    $xmlStr= simplexml_load_string($contents); 


    $array=array();
          foreach ($xmlStr->item as $node):

                  $array[]=$node->title;

                 echo '<pre>';
                    print_r($array);
                 echo '<pre>';


           endforeach;

---

你知道怎么改变吗？非常感谢。

您需要将每个节点强制转换为一个字符串（它当前是一个SimpleXMLElement），以便在一个简单数组中返回一个普通字符串，并从

title[]

数组中检索第一项

SimpleXML在其对象上实现了

\uuu toString（）

魔术方法，这就是为什么它会像对

print\u r（）

那样响应，但要将其作为字符串使用，需要将其强制转换为字符串

foreach（$xmlStr->item as$node）：
//将第一个数组值强制转换为字符串
$array[]=（字符串）$node->title[0]；
回声'；
Array
(
    [0] => SimpleXMLElement Object
        (
            [0] => App Store Bug Corrupts Binaries; Angry Birds Crash
        )

    [1] => SimpleXMLElement Object
        (
            [0] => In UK, HTC Defeats Apple's "Obvious" Slide Unlock Patent
        )

    [2] => SimpleXMLElement Object
        (
            [0] => WikiLeaks Begins Release of 2.5m Syrian Emails
        )

    [3] => SimpleXMLElement Object
        (
            [0] => A Critical Examination of Bill Gates' Philanthropic Record
        )

    [4] => SimpleXMLElement Object
        (
            [0] => Ask Slashdot: How Does Your Company Evaluate Your Performance?
        )

    [5] => SimpleXMLElement Object
        (
            [0] => UAV Cameras an Eye In the Sky For Adventurous Filmmakers
        )

    [6] => SimpleXMLElement Object
        (
            [0] => Copyrights To Reach Deep Space
        )

    [7] => SimpleXMLElement Object
        (
            [0] => FDA Approves HIV Home-Use Test Kit
        )

    [8] => SimpleXMLElement Object
        (
            [0] => Texas Scientists Regret Loss of Higgs Boson Quest
        )

    [9] => SimpleXMLElement Object
        (
            [0] => Icelandic MP Claims US Vendetta Against WikiLeaks
        )

    [10] => SimpleXMLElement Object
        (
            [0] => Microsoft's 'Cannibalistic Culture'
        )

    [11] => SimpleXMLElement Object
        (
            [0] => Android 4.1 Jelly Bean Review
        )

)

foreach ($xmlStr->item as $node):
   // Cast the first array value to a string
   $array[] = (string)$node->title[0];
   echo '<pre>';
     print_r($array);
   echo '<pre>';
endforeach;

打印（数组）；
回声'；
Array
(
    [0] => SimpleXMLElement Object
        (
            [0] => App Store Bug Corrupts Binaries; Angry Birds Crash
        )

    [1] => SimpleXMLElement Object
        (
            [0] => In UK, HTC Defeats Apple's "Obvious" Slide Unlock Patent
        )

    [2] => SimpleXMLElement Object
        (
            [0] => WikiLeaks Begins Release of 2.5m Syrian Emails
        )

    [3] => SimpleXMLElement Object
        (
            [0] => A Critical Examination of Bill Gates' Philanthropic Record
        )

    [4] => SimpleXMLElement Object
        (
            [0] => Ask Slashdot: How Does Your Company Evaluate Your Performance?
        )

    [5] => SimpleXMLElement Object
        (
            [0] => UAV Cameras an Eye In the Sky For Adventurous Filmmakers
        )

    [6] => SimpleXMLElement Object
        (
            [0] => Copyrights To Reach Deep Space
        )

    [7] => SimpleXMLElement Object
        (
            [0] => FDA Approves HIV Home-Use Test Kit
        )

    [8] => SimpleXMLElement Object
        (
            [0] => Texas Scientists Regret Loss of Higgs Boson Quest
        )

    [9] => SimpleXMLElement Object
        (
            [0] => Icelandic MP Claims US Vendetta Against WikiLeaks
        )

    [10] => SimpleXMLElement Object
        (
            [0] => Microsoft's 'Cannibalistic Culture'
        )

    [11] => SimpleXMLElement Object
        (
            [0] => Android 4.1 Jelly Bean Review
        )

)

foreach ($xmlStr->item as $node):
   // Cast the first array value to a string
   $array[] = (string)$node->title[0];
   echo '<pre>';
     print_r($array);
   echo '<pre>';
endforeach;

endforeach；