39 lines
1009 B
Markdown
39 lines
1009 B
Markdown
|
CssSelector Component
|
||
|
|
=====================
|
||
|
|
|
||
|
|
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 http://codespeak.net/svn/lxml/trunk/src/lxml/cssselect.py@71545
|
||
|
|
|
||
|
|
Using CSS selectors is far easier than using XPath.
|
||
|
|
|
||
|
|
Its only goal is to convert a CSS selector to its XPath equivalent:
|
||
|
|
|
||
|
|
```
|
||
|
|
use Symfony\Component\CssSelector\CssSelector;
|
||
|
|
|
||
|
|
print CssSelector::toXPath('div.item > h4 > a');
|
||
|
|
```
|
||
|
|
|
||
|
|
That way, you can just use CSS Selectors with the DomCrawler instead of XPath:
|
||
|
|
|
||
|
|
```
|
||
|
|
use Symfony\Component\DomCrawler\Crawler;
|
||
|
|
|
||
|
|
$crawler = new Crawler();
|
||
|
|
$crawler->addContent('<html><body><p>Hello World!</p></body></html>');
|
||
|
|
|
||
|
|
print $crawler->filter('body > p')->text();
|
||
|
|
```
|
||
|
|
|
||
|
|
By the way, that's one example of a component (DomCrawler) that relies
|
||
|
|
on another one (CssSelector) for some optional features.
|
||
|
|
|
||
|
|
Resources
|
||
|
|
---------
|
||
|
|
|
||
|
|
Unit tests:
|
||
|
|
|
||
|
|
https://github.com/symfony/symfony/tree/master/tests/Symfony/Tests/Component/CssSelector
|