DomCrawler Component====================DomCrawler eases DOM navigation for HTML and XML documents.If you are familiar with jQuery, DomCrawler is a PHP equivalent:```phpuseSymfony\Component\DomCrawler\Crawler;$crawler=newCrawler();$crawler->addContent('<html><body><p>Hello World!</p></body></html>');print$crawler->filterXPath('descendant-or-self::body/p')->text();```If you are also using the CssSelector component, you can use CSS Selectorsinstead of XPath expressions:```phpuseSymfony\Component\DomCrawler\Crawler;$crawler=newCrawler();$crawler->addContent('<html><body><p>Hello World!</p></body></html>');print$crawler->filter('body > p')->text();```Resources---------You can run the unit tests with the following command: $ cd path/to/Symfony/Component/DomCrawler/ $ composer install $ phpunit