如何使用 Domcrawler 通过 css 选择器（标签、类和 ID）删除元素？

Question

我怎么能在这里用Domcrawler实现这个解决方案？

<?php
use Symfony\Component\DomCrawler\Crawler;

$crawler = new Crawler();
$content = file_get_contents('http://example.com/somepage.html');
$crawler->addHtmlContent($content, 'UTF-8');
$content = $crawler->filter('#main-content');

// Remove content by tag and by css selector.

?>

Answer 1

    $crawler = new Crawler($html,$url);

    $document = new \DOMDocument('1.0', 'UTF-8');
    $root = $document->appendChild($document->createElement('_root'));
    $crawler->rewind();
    $root->appendChild($document->importNode($crawler->current(), true));
    $domxpath = new \DOMXPath($document);

    foreach ($selectorsToRemove as $selector) {
        $crawlerInverse = $domxpath->query(CssSelector::toXPath($selector));
        foreach ($crawlerInverse as $elementToRemove) {
            $parent = $elementToRemove->parentNode;
            $parent->removeChild($elementToRemove);
        }
    }
    $crawler->clear();
    $crawler->add($document);