Submit Button Sends Email even If reCaptcha has been done

Question

Im in the process of adding the reCaptcha from google to my form. The problem is that even though I have followed the instructions from google. I can still press the Submit

Answer 1

So we set up the form and make sure your library is included, I prevent the submit button from being clicked while the recaptcha has not been completed and show a tooltip to notify the user it is needed to continue. Then enable it when it has been complete using the callback methods.

login.php

    
    
  
        
Login
        

        

        

        
        

            

                
            
        
    

Now we post to loginHandler.php, or wherever your form submits too and then there we will assign your secret key and then verify the request with google.

loginHandler.php

$secret = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";

if (isset($_POST["g-recaptcha-response"])) {

    $url = 'https://www.google.com/recaptcha/api/siteverify?secret=' . urlencode($secret) .
            '&response=' . urlencode($_POST['g-recaptcha-response']) . '&remoteip=' . urlencode($_SERVER['REMOTE_ADDR']);
    //ip address is optional
    $result = json_decode(file_get_contents($url), true);

    if ($result != null && $result['success'] === true) {

        //success, handle login/submit data or whatever

    } else {
        //response is bad, handle the error
        header('Location: login.php?error=4');
    }
} else {
    //captcha response is not set, handle error
    header('Location: login.php?error=5');
}