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<?php
namespace fivefilters\Readability\Nodes\DOM;
use fivefilters\Readability\Nodes\NodeTrait;
class DOMElement extends \DOMElement
{
use NodeTrait;
/**
* Returns the child elements of this element.
*
* To get all child nodes, including non-element nodes like text and comment nodes, use childNodes.
*
* @return DOMNodeList
*/
public function children()
{
$newList = new DOMNodeList();
foreach ($this->childNodes as $node) {
if ($node->nodeType === XML_ELEMENT_NODE) {
$newList->add($node);
}
}
return $newList;
}
/**
* Returns the Element immediately prior to the specified one in its parent's children list, or null if the specified element is the first one in the list.
*
* @see https://wiki.php.net/rfc/dom_living_standard_api
* @return DOMElement|null
*/
public function previousElementSibling()
{
$previous = $this->previousSibling;
while ($previous) {
if ($previous->nodeType === XML_ELEMENT_NODE) {
return $previous;
}
$previous = $previous->previousSibling;
}
return null;
}
}
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