Builds a new HTMLdoc collection containing only the node at the index requested.
$doc = new \hexydec\html\htmldoc();
if ($doc->load($html, $charset)) {
$found = $doc->find($selector)->eq($index);
}An integer indicating the zero based index of the element to return. A minus value will return that many items from the end of the collection.
An HTMLdoc collection containing the element at the index requested, or an empty HTMLdoc collection if the index is out of range.