'PHP DomDocument query in results

Yesterday I discovered the php DomDocument and I realized that could help me a lot (way faster - I was using php and regex) to get values from html.

I'm stuck and I can't find a solution (probably my way of thinking) - searched for over 16 hours now and still no solution.

$res = '
<html>
<div class="product bla bla">
<div class="size">xxl</div>
<div class="color yy">red</div>
</div>

<div class="product bla">
<div class="size xxs">xxs</div>
<div class="line line2">new</div>
</div>

<div class="product asd">
<div class="color xx">blue</div>
</div>
</html>
';

$dom = new DomDocument();
@ $dom->loadHTML($res); // utf8_decode
$dom->preserveWhiteSpace = false; // ?
$xpath = new DomXPath($dom);
$nodes = $xpath ->query("//*[contains(@class, 'product')]");

echo "Found {$nodes->length} matching places" . PHP_EOL;

foreach($nodes  as $node) {
    $name = $xpath->query("//*[contains(@class, 'color')]", $node);
    echo "<br>";
    echo $name[0]->nodeValue . PHP_EOL;
}

Result:

Found 3 matching places
red
red
red

Expected result would be:

Found 3 matching places
red
Null / empty or so...
blue

My question would be how do I search in search result (preserving the index ex. [0] - red, [1] - null, 2 - [blue] )

Also if you know a good place to learn about DomDocument let me know

Thank you for your help or hints.

phphtmldomdocumentdomxpath


Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source

Related Questions