public function testImageToText($url) {
        $api = new ImageToText();
        $api->setVerboseMode(false);

        //your anti-captcha.com account key
        $api->setKey("xxxxxxxxxxxxxxxxxxxxxxx");

        $path = $_SERVER['DOCUMENT_ROOT'].'/crystal/captcha/' . $api->generateRandomString();
        file_put_contents($path, file_get_contents($url));

        //setting file
        $api->setFile($path);

        if (!$api->createTask()) {
            $api->debout("API v2 send failed - ".$api->getErrorMessage(), "red");
            return false;
        }

        $taskId = $api->getTaskId();

        if (!$api->waitForResult()) {
            $api->debout("could not solve captcha", "red");
            $api->debout($api->getErrorMessage());
        } else {
            $captchaText = $api->getTaskSolution();
            return $captchaText;
        }
    }