使用SimpleXML从XML获取多个项目 [英] Get multiple items from XML with SimpleXML

问题描述

我正在尝试使用下面的代码从XML中循环多个项目.

I'm trying to loop multiple items from an XML with the code below.

$xml = get_data('the-url');
$data = simplexml_load_string($xml);

foreach($data->item AS $item) {
    foreach($item AS $test) {
        var_dump($test);
    }
}

XML看起来像这样:

The XML looks like this:

<xml>
    <item>
        <name>...</name>
        <chapter>...</chapter>
        <text>
            ...
        </text>
    </item>
    <item>
        <name>...</name>
        <chapter>...</chapter>
        <text>
            ...
        </text>
    </item>
    <item>
        <name>...</name>
        <chapter>...</chapter>
        <text>
            ...
        </text>
    </item>
    <item>
        <name>...</name>
        <chapter>...</chapter>
        <text>
            ...
        </text>
    </item>
    <item>
        <name>...</name>
        <chapter>...</chapter>
        <text>
            ...
        </text>
    </item>
</xml>

现在，var_dump($test)将显示以下内容:

As it is right now, the var_dump($test) prints this:

object(SimpleXMLElement)#7 (0) { } object(SimpleXMLElement)#8 (0) { }
object(SimpleXMLElement)#7 (0) { } object(SimpleXMLElement)#8 (0) { }
object(SimpleXMLElement)#7 (0) { } object(SimpleXMLElement)#8 (0) { }
object(SimpleXMLElement)#7 (0) { } object(SimpleXMLElement)#8 (0) { }
object(SimpleXMLElement)#7 (0) { } object(SimpleXMLElement)#8 (0) { }
object(SimpleXMLElement)#7 (0) { } object(SimpleXMLElement)#8 (0) { }
object(SimpleXMLElement)#7 (0) { } object(SimpleXMLElement)#8 (0) { } ...

我该怎么做才能使我的代码循环所有项目并输出值?

What should I do to make my code to loop all the items and prints the value?

推荐答案

尝试一下:

$xml_content = file_get_contents('http://url/feed.xml');
$data = simplexml_load_string($xml_content);

foreach ($data->item as $item) {
    var_dump($item->bookname);
}

如果需要，还可以将整个$ item强制转换为数组:

You can also cast whole $item to array if you need:

foreach ($data->item as $item) {
    $itemArray = (array) $item;
    var_dump($itemArray);
}

您在转储对象时，需要首先将to转换为字符串以返回文本值. 另外，我不认为第二个foreach在做什么或需要做的事情，因此我将其删除.

You were dumping objects, when you need to cast the to string first to return the text value. Also, I do not think the second foreach was doing anything or needed, so I removed it.

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