include 'curl_query.php';

$cocos = $dom->find('#header');

    foreach ($cocos as $coc) {
        echo $coc->plaintext;
    }

function curl_get($url, $referer = 'https://www.google.ru') {
        $ch = curl_init();

        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)');
        curl_setopt($ch, CURLOPT_REFERER, $referer);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

        $data = curl_exec($ch);
        return $data;
    }

Fatal error: Uncaught Error: Call to a member function find() on boolean in C:OpenServerOSPaneldomainsparserparcer.php:39 Stack trace: #0 {main} thrown in C:OpenServerOSPaneldomainsparserparcer.php on line 39