Question

出现一些问题后，我按如下方式修改了代码，但它不起作用：

$xml = simplexml_load_string($content) or die("Error: Cannot create object");
#var_dump($xml);
#exit;
if(!empty($xml)) {
    foreach($xml->answer->result as $result) {
        if (!empty($result)) {
            foreach($result->attributes() as $a => $b) {
                echo $a,'="',$b,"\"\n";
            }
        }
    }
}

请注意，如果在第一个exit循环之后我foreach获得了预期的结果，则意味着空元素确实存在问题。这是要解析的xml：

<response>
    <method>keyword.domain.seo</method>
    <answer>
        <result kw="moos im garten" position="47" competition="0" traffic="20" url="https://www.example.org"/>
        <result kw="moos entfernen" position="75" competition="39" traffic="30" url="https://www.example.org"/>
    </answer>
    <date>2018-09-03T15:56:07+02:00</date>
    <credits used="2"/>
</response>

关于我能做什么的任何想法？

Answer 1

This should work

$content=<<<XML
<response>
<method>keyword.domain.seosssssss</method>
<answer>
<result kw="moos entfernen" position="74" competition="39" traffic="30" url="https://www.gartenbau.org/moos-entfernen-201816621"/>
<result kw="moosentfernundddddddddddddddg" position="93" competition="52" traffic="20" url="https://www.gartenbau.org/moos-entfernen-201816621"/>
</answer>
<date>2018-08-27T15:13:04+02:00</date>
<credits used="2"/>
</response>  
XML;
        $xml=simplexml_load_string($content) or die("Error: Cannot create object");
        #var_dump($xml);
        #exit;
        if(!empty($xml))
        {
            foreach($xml->answer->result as $result)
            {
                if (!empty($result))
                {
                    foreach($result->attributes() as $a => $b)
                    {
                        echo $a,'="',$b,"\"\n";
                    }
                }
            }
        }

Answer 2

这解决了我的问题，我敢肯定这不是最好的解决方案，但至少可以奏效：

$xml=simplexml_load_string($content) or die("Error: Cannot create object");
$results = $xml->answer->result;
if(!empty($results))
{
 foreach($results as $result)
 {
   if (!empty($result))
  {
    foreach($result->attributes() as $a => $b)
    {
     echo $a,'="',$b,"\"\n";
    }
  }
}
}

为foreach（）提供的带有对象（SimpleXMLElement）的PHP无效参数

2 个答案: