DOMDocument 简单的 GetElementsByTagName 不起作用? [英] DOMDocument simple GetElementsByTagName wont work?

问题描述

 $xml = 'loadXML($xml);$result = $dom->getElementsByTagName('stw:Thumbnail')->item(0)->nodeValue;$status = $dom->getElementsByTagName('stw:Thumbnail')->item(0)->nodeValue;回声 $result;

上面的代码应该输出 http://imagelink.com 并且 $status 应该保持delivered"——但没有在这些工作中，我留下了错误通知:

试图获取非对象的属性

我尝试了不同的 xml 解析替代方案，例如 simplexml(但是当标签名称中包含 : 时这不起作用)并且我尝试循环遍历 xml 中的每个范围(ThumbNailresponse、response 然后thumbnailresult)，但没有走运.

如何获取 stw:Thumbnail 中的值?

解决方案

使用简单的 xml 你可以使用 ->children() 方法:

$xml = simplexml_load_string($xml_string);$stw = $xml->children('stw', 'http://www.shrinktheweb.com/doc/stwresponse.xsd');echo '
';foreach($stw as $e) {打印_r($e);//在这里做你必须做的事}
        $xml = '<?xml version="1.0" encoding="UTF-8"?> 
<stw:ThumbnailResponse xmlns:stw="http://www.shrinktheweb.com/doc/stwresponse.xsd">
    <stw:Response>
        <stw:ThumbnailResult>
            <stw:Thumbnail Exists="true">http://imagelink.com</stw:Thumbnail>
            <stw:Thumbnail Verified="false">delivered</stw:Thumbnail>
        </stw:ThumbnailResult>
        <stw:ResponseStatus>
            <stw:StatusCode>refresh</stw:StatusCode>
        </stw:ResponseStatus>
        <stw:ResponseTimestamp>
            <stw:StatusCode>1413812009</stw:StatusCode>
        </stw:ResponseTimestamp>
        <stw:ResponseCode>
            <stw:StatusCode>HTTP:200</stw:StatusCode>
        </stw:ResponseCode>
        <stw:CategoryCode>
            <stw:StatusCode></stw:StatusCode>
        </stw:CategoryCode>
        <stw:Quota_Remaining>
            <stw:StatusCode>132</stw:StatusCode>
        </stw:Quota_Remaining>
        <stw:Bandwidth_Remaining>
            <stw:StatusCode>999791</stw:StatusCode>
        </stw:Bandwidth_Remaining>
    </stw:Response>
</stw:ThumbnailResponse>';

        $dom = new DOMDocument;
        $dom->loadXML($xml);


        $result = $dom->getElementsByTagName('stw:Thumbnail')->item(0)->nodeValue;
        $status = $dom->getElementsByTagName('stw:Thumbnail')->item(0)->nodeValue;

        echo $result;
Having the above code should output http://imagelink.com and $status should hold "delivered" - but none of these work instead I am left with the error notice that:
Trying to get property of non-object
I have tried different xml parsing alternatives like simplexml (but that did not work when the tag names have : in it ) and i tried looping through the each scope in the xml (ThumbNailresponse, response and then thumbnailresult) without luck.

How can i get the values inside stw:Thumbnail?
解决方案
Using simple xml you could use ->children() method on this one:
$xml = simplexml_load_string($xml_string);
$stw = $xml->children('stw', 'http://www.shrinktheweb.com/doc/stwresponse.xsd');
echo '<pre>';
foreach($stw as $e) {
    print_r($e);
    // do what you have to do here
}


                        
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