check-recaptcha.php

    private static function assertTrueRecaptcha()
    {
        $recaptcha = $_REQUEST['g-recaptcha-response'];
        $secret = '123123123123123123123';
        $url = "https://www.google.com/recaptcha/api/siteverify?secret=".$secret ."&response=".$recaptcha."&remoteip=".$_SERVER['REMOTE_ADDR'];
        $status = 1;
        
        if(!empty($recaptcha)) {
            $curl = curl_init();
            if(!$curl) {
                $status = 2;    
            } else {
                curl_setopt($curl, CURLOPT_URL, $url);
                curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
                curl_setopt($curl, CURLOPT_TIMEOUT, 10);
                curl_setopt($curl, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.16) Gecko/20110319 Firefox/3.6.16");
                $curlData = curl_exec($curl);
                curl_close($curl);    
                $curlData = json_decode($curlData, true);
                if($curlData['success']) {
                    $status = 0;
                }
            }
        } 
        
        if($status === 0) {  
            return true;
        } else if($status === 1) {  
            throw new \yii\base\ErrorException("Вы не прошли проверку на спам.");
        } else if($status === 2) {  
            throw new \yii\base\ErrorException("Системная ошибка проверки на каптчу.");
        }
    }