snipet.php

<?php

try {

    $tr_elements = $crawler2->filterXPath('//table/tr');

    $result = $crawler2->filter('#ctl00_ContentPlaceHolder1_dlResultados')->html();

    $crawler3 = new Crawler($result);

    $headerData = [];
    $counter = 0;
    $node = $crawler3->filter('.resultadocdital')->each(function (Crawler $node, $i) use (&$headerData, &$counter) {
        $PATTERN = '/\<strong\>(?<name>[^\<^\>]*)\s?:\s?<\/strong\>(?<content>[^\<^\>]*)/m';

        preg_match_all($PATTERN, trim($node->html()), $matches, PREG_SET_ORDER, 0);

        if (!isset($matches[0])) {
            return [];
        }
        $headerData[$counter] = [];
        $counter++;
        foreach ([0, 1, 2, 3, 4, 5, 6, 7, 8] as $key) {
            if (!isset($matches[$key])) {
                continue;
            }
            $match = $matches[$key];
            $headerData[$counter][] = [
                'name' => $this->clear($match['name']),
                'content' => $this->clear($match['content']),
            ];
        }
    });

    // use $headerData in template;

} catch (InvalidArgumentException $e) {
    return "error";
}