html - get complete 'div' content using class name or id using php

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html - get complete 'div' content using class name or id using php

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

html - get complete 'div' content using class name or id using php

i got a page source from a file using php and its output is similar to

<div class="basic">

 <div class="math">

  <div class="winner">

   <div class="under">

        <div class="checker">

         <strong>check</strong>

        </div>

   </div>

  </div>

 </div>

</div>

from this i need to got only a particular 'div' with whole div and contents inside like below when i give input as 'under'(class name) . anybody suggest me how to do this one using php

<div class="under">

      <div class="checker">

         <strong>check</strong>

      </div>

 </div>

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1 Answer

深蓝 · Answer 1 · 2021-10-23T21:34:00+0000

Try this:

$html = <<<HTML
<div class="basic">
    <div class="math">
        <div class="winner">
            <div class="under">
                <div class="checker">
                    <strong>check</strong>
                </div>
            </div>
        </div>
    </div>
</div>;
HTML;

$dom = new DOMDocument();

$dom->loadHTML($html);

$xpath = new DOMXPath($dom);

$div = $xpath->query('//div[@class="under"]');

$div = $div->item(0);

echo $dom->saveXML($div);

This will output:

<div class="under">
    <div class="checker">
        <strong>check</strong>
    </div>
</div>

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html - get complete 'div' content using class name or id using php

html - get complete 'div' content using class name or id using php

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