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jakzal/crawler-edit.php

Last active January 22, 2024 13:18
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Removing nodes with DomCrawler
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crawler-edit.php
<?php
<<<CONFIG
packages:
- "symfony/dom-crawler: ~2.3"
- "symfony/css-selector: ~2.3"
CONFIG;
use Symfony\Component\DomCrawler\Crawler;
$html = <<<HTML
<html>
<div class="content">
<h2 class="gamma">Excerpt</h2>
<p>...content html...</p>
</div>
<div class="content">
<h2 class="gamma">Excerpt</h2>
<p>...more content html...</p>
</div>
</html>
HTML;
$crawler = new Crawler($html, 'http://localhost');
// remove all h2 nodes inside .content
$crawler->filter('html .content h2')->each(function (Crawler $crawler) {
foreach ($crawler as $node) {
$node->parentNode->removeChild($node);
}
});
// output .content nodes with h2 removed
$crawler->filter('html .content')->each(function (Crawler $crawler) {
echo $crawler->html();
});
@NinoSkopac
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Since each() gets one node at a time, this has the same effect:

$crawler->filter('html .content h2')->each(function (Crawler $crawler) {
    $node = $crawler->getNode(0);
    $node->parentNode->removeChild($node);
});

IMO this is more readable

@broiniac
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broiniac commented Oct 29, 2021 •
edited
Loading

Since each() gets one node at a time, this has the same effect

👍 Nice catch

@ajmeese7
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Since each() gets one node at a time, this has the same effect:

$crawler->filter('html .content h2')->each(function (Crawler $crawler) {
    $node = $crawler->getNode(0);
    $node->parentNode->removeChild($node);
});

IMO this is more readable

@NinoSkopac I am aware that it has been several years since your message, but for anyone stumbling across this thread as I have, be aware that you can't use this method in WebDriver mode now. You get the following error:

Uncaught InvalidArgumentException: The "getNode" method cannot be used in WebDriver mode. Use "getElement" instead.

@eduance
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eduance commented Jan 22, 2024

You're amazing thanks!!

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