public function Crawler::filter in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 vendor/symfony/dom-crawler/Crawler.php \Symfony\Component\DomCrawler\Crawler::filter()

Filters the list of nodes with a CSS selector.

This method only works if you have installed the CssSelector Symfony Component.

Parameters

string $selector A CSS selector:

Return value

Crawler A new instance of Crawler with the filtered list of nodes

Throws

\RuntimeException if the CssSelector Component is not available

File

vendor/symfony/dom-crawler/Crawler.php, line 651

Class

Crawler

Crawler eases navigation of a list of \DOMElement objects.

Namespace

Symfony\Component\DomCrawler

Code

public function filter($selector) {
  if (!class_exists('Symfony\\Component\\CssSelector\\CssSelector')) {
    throw new \RuntimeException('Unable to filter with a CSS selector as the Symfony CssSelector is not installed (you can use filterXPath instead).');
  }

  // The CssSelector already prefixes the selector with descendant-or-self::
  return $this
    ->filterRelativeXPath(CssSelector::toXPath($selector));
}