php - 如何使用简单的 xml 对象获取 xml 中的标签名称

Question

嗨，我有以下简单的 xml 对象:

[ad] => Array
    (
        [0] => SimpleXMLElement Object
            (
                [title] => <b>Title: Mysql 1</b>
                [abstract] => Abstract: Mysql 1
                [url] => www.Mysql.com
                [rurl] => http://sample/xtrack.php?rurldata=yes
                [iurl] => http://sample.com/
                [bid] => 0.0880
            )

        [1] => SimpleXMLElement Object
            (
                [title] => <b>Title: Mysql 2</b>
                [abstract] => Abstract: Mysql 2
                [url] => www.Mysql.com
                [rurl] => http://sample/xtrack.php?rurldata=yes
                [iurl] => http://sample.com/
                [bid] => 0.1980
            )
    )

我想从中创建一个数组。我正在尝试这样的 foreach

foreach($xmlString->ad as $key){
        foreach($key as $key2 => $val2){
             $adData[$counter][$key2] = $val2;
        }
            $counter++;
}

但是我得到了这样的结构:

 Array
  (
    [0] => Array
    (
        [title] => SimpleXMLElement Object
            (
                [0] => <b>Title: Mysql 1</b>
            )

        [abstract] => SimpleXMLElement Object
            (
                [0] => Abstract: Mysql 1
            )

        [url] => SimpleXMLElement Object
            (
                [0] => www.Mysql.com
            )

        [rurl] => SimpleXMLElement Object
            (
                [0] => http://sample/xtrack.php?rurldata=yes
            )

        [iurl] => SimpleXMLElement Object
            (
                [0] => http://sample.com/
            )

        [bid] => SimpleXMLElement Object
            (
                [0] => 0.0880
            )

    )
    .
    .
    .So on

现在我知道 $key2 是一个对象。我怎样才能只检索它的标签名称？这该怎么办？

Answer 1

您可以使用 SimpleXmlEmement::getName 获取名称方法

foreach($xmlString->ad as $key){
   echo $key->getName() . '<br/>';
}