CssSelector Component ===================== CssSelector converts CSS selectors to XPath expressions. The component only goal is to convert CSS selectors to their XPath equivalents: use Symfony\Component\CssSelector\CssSelector; print CssSelector::toXPath('div.item > h4 > a'); Resources --------- This component is a port of the Python lxml library, which is copyright Infrae and distributed under the BSD license. Current code is a port of https://github.com/SimonSapin/cssselect@fd2e70 You can run the unit tests with the following command: $ cd path/to/Symfony/Component/CssSelector/ $ composer.phar install --dev $ phpunit