How to call function from another class in the widget array?

I have a yii application. And I am using the

widget('bootstrap.widgets.TbGridView

and in the column value of the widget I have this function:

<div class="row-fluid">
    <div class="span12">
        <?php $this->widget('bootstrap.widgets.TbGridView', [
            'id' => 'result-grid',
            'type' => 'striped bordered condensed hover',
            'pagerCssClass' => "pagination viewpager",
            'template' => "{summary}{items}n{pager}",
            'dataProvider' => $result,
            'columns' => [
                [
                    'class' => 'bootstrap.widgets.TbButtonColumn',
                    'template' => '{Link}',
                    'buttons' => [
                        'Link' => [
                            'options' => ['class' => "btn-block viewEntry", 'target' => '_blank'],
                            'url' => function (Result $result) {
                                return $result->page_link;
                            },
                        ],
                    ],
                ],
                [
                    'htmlOptions' => ['style' => 'width: 150px'],
                    'name' => 'coc_number',
                    'value' =>  function(Result $result){

                       return $result -> kvknumber($result);

                    }                  
                ],              
            
        ]); ?>

  </div>
</div>

And the model Resul looks like this:

class Result extends CActiveRecord
{
    protected function getProductPageUrl()
    {
        return '<a href="' . $this->page_link . '" target="_blank"> ' . '<i class="fa fa-globe"></i>' . '</a>';
    }

    /**
     * @return string the associated database table name
     */
    public function tableName()
    {
        return 'scrape_result';
    }

    public  function kvknumber(Result $result)
    {
        $requestString = Google::GOOGLE_BASE_URL . 'key=' . Google::GOOGLE_API_KEY .
            '&cx=' . Google::GOOGLE_CX . '&q=' . $result->page_url .
            '"kvk"' . '&lr=lang_nl';


        $clear = GuzzleHttpjson_decode((new Client)->request('GET', $requestString)->getBody()->getContents());
        

        if (property_exists($clear, 'items')) {
            foreach ($clear->items as $item) {
                if (property_exists($item, 'snippet')) {
                    if (strpos(($item->snippet), 'KvK') !== false) {

                        //      echo 'snippet' . $item->snippet;
                        preg_match('/[0-9]{8}/', $item->snippet, $match);

                        //  echo ('match' . $match[0]);

                        if (isset($match[0])) {
                            $result->coc_number = $match[0];
                            $result->save();
                        }
                        sleep(4);
                    }
                }
            }
        }      

        return $result->coc_number;
    }
}

But when I load the page I get this error:

Fatal error: Maximum execution time of 120 seconds exceeded in C:xampphtdocswebScraperprotectedmodulesscrapemodelsResult.php on line 57

So my question is. How to resolve this?