问用Goutte解析-如何在包含文本字符串的元素之后找到一个元素

EN

<table id="table" border="1">
    <tr>
    <a href="">xyz</a>
    <a href="">abc</a>
    <h1>Heading</h1>
    <th>Website:</th>
    <td>
        <a href="http://www.adres.com" target="_blank">http://www.adres.com</a>
    </td>
    <th>Website:abc</th>
    <td>
        <a href="http://www.adres.com" target="_blank">http://www.ares.com</a>
    </td>
    </tr>
</table>

use Weidner\Goutte\GoutteFacade;
use Symfony\Component\DomCrawler\Crawler;

$crawler = GoutteFacade::request('GET','http://localhost/php_notes.php');

        $table = $crawler->filter('#table'); // find the parent table 

        // find each td tag
        $tdText = $table->filter('td')->each(function ($node){

            $alike = $node->previousAll(); // calculate the elements of the same level above this 
            //element :Will return array containing the tags above this tag.

            // dump('Size of array => '.sizeof($alike));
            $elementTag = $alike->eq(0); // find the tag above this <td> tag. 

            // if the tag above this tag is a <th> tag
            if($elementTag->nodeName()=='th'){
                if($elementTag->text()=='Website:')
                {
                    $text = $node->filter('a')->text();

                    dd('Text found form td "'.$text.'"');
                }
            }

        });

        dd('Not Text Was Found From A tag');