first() public method

Searches for an node in the DOM tree and returns first element or null.
public first ( string $expression, string $type = Query::TYPE_CSS, boolean $wrapElement = true ) : Element | DOMElement | null
$expression string XPath expression or a CSS selector
$type string The type of the expression
$wrapElement boolean Returns \DiDom\Element if true, otherwise \DOMElement
return Element | DOMElement | null
Element Class Documentation
Exemplo n.º 1
1
 public function testFirst()
 {
     $html = '<ul><li>One</li><li>Two</li><li>Three</li></ul>';
     $document = new Document($html, false);
     $list = $document->first('ul');
     $item = $list->getNode()->childNodes->item(0);
     $this->assertEquals($item, $list->first('li')->getNode());
     $list = new Element('ul');
     $this->assertNull($list->first('li'));
 }