php / xpath：获取嵌套div中的内容

Question

I have the following html code:

<div class='class1'> Content 1
<div class='class2'> Content 2
</div>
</div>

And I want to use xpath to only get the content between 'class1' and 'class2', aka just 'Content 1' by itself. This is what I have so far:

$classname = 'class1';
$results = $xpath->query("//*[@class='" . $classname . "']");
echo $results->item($x)->nodeValue;

But its returning back

Content 1 Content 2

Anyway to just get 'Content 1' by itself? Thanks!

Answer 1

It is hard to know exactly what is going wrong with your code because we don't know what $x represents. The XPath you have is correct, but from you code I can't tell how you are printing your output. Below is a working example of what I think you are trying to achieve:

PHP

<?php

$string = 
<<<XML
    <div class='class1'> Content 1
        <div class='class2'> Content 2
        </div>
    </div>
XML;

$xml = new SimpleXMLElement($string);

$results = $xml->xpath('//div[@class="class1"]');
foreach($results as $result) {
    echo $result;
} 

?>

Output

Content 1

This creates a 'simple xml element' and then uses the XPath //div[@class="class1"] to look for your desired element. The $results variable returned is an array (which only holds one element), so I loop over it to print the desired output.