Google Recaptcha v3 example demo

Question

Until now, I was working with Google Recaptcha v2, but now I want to update my WebApp using the lastest version (v3).

Is it possible to anyone add a fully working Go

Answer 1

I have seen most of the articles that don't work properly that's why new developers and professional developers get confused about it.

I am explaining to you in a very simple way. In this code, I am generating a google Recaptcha token at the client side at every 3 seconds of time interval because the token is valid for only a few minutes that's why if any user takes time to fill the form then it may be expired.

First I have an index.php file where I am going to write HTML and JavaScript code.

    

   
      
   
   
      
Google Recaptcha V3
      

         Name
         
          
          
         
      
      
      
      
   

Next, I have created recaptcha.php file to execute it at the server side

 'put your secret key here',
        'response' => $token
    );

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "https://www.google.com/recaptcha/api/siteverify");
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($curlData));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    $curlResponse = curl_exec($ch);

    $captchaResponse = json_decode($curlResponse, true);

    if ($captchaResponse['success'] == '1' && $captchaResponse['action'] == $action && $captchaResponse['score'] >= 0.5 && $captchaResponse['hostname'] == $_SERVER['SERVER_NAME']) {
        echo 'Form Submitted Successfully';
    } else {
        echo 'You are not a human';
    }
}

Source of this code. If you would like to know the explanation of this code please visit. Google reCAPTCHA V3 integration in PHP