Help needed installing Google Recaptcha onto my basic php form

[Andrew7v]

Hi,

I have a basic php form that has some if(empty) code that check to make sure the fields are filled out and then if ok, it processes and emails me the data. It's all on the same php page.

But I'm having a hard time trying to figure out how to get Google Recaptcha to work...  

Can someone please help me figure this out? Thanks

 

*Attached is my form with all the important parts, and asterisks where my google captcha site keys would be...

contactform.php

[Jacques1]

Read the forum rules.

• When you expect help with a problem, you need to provide concrete information: symptoms, error messages, your attempts at solving them etc. Simply posting a script and telling us that there's something wrong with it doesn't work. We cannot read your mind, we're not sitting in front of your screen, and we aren't going to play guess-what-my-problem-is with you.
• When you post code, use code tags. Attaching it as a file is very annoying, because it cannot be accesses by guests, it cannot be searched, it cannot be indexed by Google, and it doesn't have syntax highlighting.

[Gandalf64]

I'll help you with what I thought was the tricky part of Google ReCaptcha (How I resolved it was not only going to Google, but searching the internet. You'll be surprised how many before you have had the same issue), for I think you can get the rest by going to Google themselves.

 

When the user clicks on the I'm human checkbox this is how I would set up the response.

if (isset($submit) && $submit === 'submit') {
    /* The Following to get response back from Google Recaptha */
    $url = "https://www.google.com/recaptcha/api/siteverify";

    $remoteServer = filter_input(INPUT_SERVER, 'REMOTE_ADDR', FILTER_SANITIZE_URL);
    $response = file_get_contents($url . "?secret=" . PRIVATE_KEY . "&response=" . \htmlspecialchars($_POST['g-recaptcha-response']) . "&remoteip=" . $remoteServer);
    $recaptcha_data = json_decode($response);
    /* The actual check of the recaptcha */
    if (isset($recaptcha_data->success) && $recaptcha_data->success === TRUE) {
        /* Example data gather from the form (actually my contact form) */
        $data['name'] = filter_input(INPUT_POST, 'name', FILTER_SANITIZE_FULL_SPECIAL_CHARS);
        $data['email'] = filter_input(INPUT_POST, 'email', FILTER_SANITIZE_FULL_SPECIAL_CHARS);
        $data['phone'] = filter_input(INPUT_POST, 'phone', FILTER_SANITIZE_FULL_SPECIAL_CHARS);
        $data['website'] = filter_input(INPUT_POST, 'website', FILTER_SANITIZE_FULL_SPECIAL_CHARS);
        $data['reason'] = filter_input(INPUT_POST, 'reason', FILTER_SANITIZE_FULL_SPECIAL_CHARS);
        $data['comments'] = filter_input(INPUT_POST, 'comments', FILTER_SANITIZE_FULL_SPECIAL_CHARS);
        /* The following would be your way of sending the email */
        $send = new Email($data); // This is my way, by sending it to a class:
    } else {
        $errMessage = "You're not a human!";
    }
}

[Andrew7v]

Great, thank you very much Gandalf64...

I will try that out and see if i can work it out.

 

Really appreciate it!

[Jacques1]

The code above has its own problems (like the reliance on the potentially insecure allow_url_fopen setting and the random and incorrect use of HTML-escaping).

 

So instead of continuously relying on others to spoonfeed you (half-)working code, you should take the chance to grow up as a programmer and learn how to solve problems yourself. Yes, that's more work than the usual “My code is broken, please fix it for me!”, but it's worth it.