How to convert Goutte response to json

Question

so im trying to scrape data from this url here, basically i input some data into the form and the form returns a table, in which i have to collect all the data into a json output into something like this.

However i cant seem to convert the response into a json output as it's always returing it in text. I tried to encode and decode the text into json but it does not work.

This is my desired output

However this is what i get

<?php
    
    require 'vendor/autoload.php';
    
    use Goutte\Client;
    
    $client = new Client();
    $crawler = $client->request('GET', 'https://search.ipaustralia.gov.au/trademarks/search/advanced');
    // $crawler = $client->click($crawler->selectLink('Sign in')->link());
    $form = $crawler->selectButton('Search')->form();
    $crawler = $client->submit($form, ['wv[0]' => 'abc']);
    // $header_car =  $crawler->filter("resultsTable")->text();
    // $output = $crawler->filter('#resultsTable');
    $output = $crawler->filter('#resultsTable')->each(function ($node) {
        $response = $node->text();
        var_dump($response);
    });