John Davidson

Message:

I tried following code and it returns null.

$doc = new DOMDocument;

$doc->preserveWhiteSpace = false;

$doc->strictErrorChecking = false;

$doc->recover = true;



ini_set('user_agent', 'My-Application/2.5');

libxml_use_internal_errors(true);

$doc->loadHTMLFile('https://www.revolve.com/elliatt-cassini-dress/dp/ELLI-WD346/?d=Womens&srcType=hp_recs_viewed');

$xpath = new DOMXPath($doc);

$imgs = $xpath->query('//*[@class="zoomWindow "]');

foreach($imgs as $b){

    $datae[] = array(

        'img' => $xpath->evaluate(

            "substring-before(substring-after(./@style, \"background-image: url('\"), \"')\")",

        $b

        ),

    );

}

    

Here's the relevent div element,

<div style="z-index: 999; position: absolute; float: left; height: 536.406px; width: 355.141px; margin-top: 0px; margin-left: 0px; border: 0px solid rgb(136, 136, 136); background-position: -426.067px -499.099px; background-repeat: no-repeat; cursor: crosshair; overflow: hidden; background-image: url("https://is4.revolveassets.com/images/p4/n/z/ELLI-WD346_V1.jpg"); top: 0px; left: 0px; display: none;" class="zoomWindow">&nbsp;</div>

---

My Answer:
loadHTML($html);_$xpath = new DOMXPath($doc);_$elements = $xpath->query('//div[@class="example"]/style/background-image');foreach ($elements as $element) { $url = $element->getAttribute('url'); echo $url;}This code is incorrect because the XPath query is looking for a `style` element with a `background-image` attribute, which is not valid. Instead, you should be looking for a `div` element with a `background-image` style attribute. Here is the corrected code:$doc = new DOMDocument;_$doc->loadHTML($html);_$xpath = new DOMXPath($doc);_$elements = $xpath->query('//div[@class="example"]/@style[contains(.,"background-image")]');foreach ($elements as $element) { $style = $element->nodeValue; preg_match('/url\((.*?)\)/', $style, $matches); $url = $matches[1]; echo $url;}This code will correctly extract the background-image URL from a `div` element with a `background-image` style attribute.