Symfony Secure Form with Google ReCaptcha

Installation

1. Configure app/config/parameters.yml

Fill in your host,database name,password.

2. Configure ReCaptcha

Generate your own custom Recapcha Public and Secret Keys in the address https://www.google.com/recaptcha

Update your Recapcha Public keys in /Resources/views/Contact_form/contactform.html.twig.

<!-- Update your Recapcha public key here -->
<div class="g-recaptcha" data-sitekey="YourRecapchaPublicKey"></div>

Update your Recapcha Secret Keys in /src/AppBundle/Recapcha/RecapchaVerification.php

    public function verify($response_key)
    {
        $url = "https://www.google.com/recaptcha/api/siteverify";
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, array(
            "secret"=>"YourRecapchaSecretKey","response"=>$response_key));
        $response = curl_exec($ch);
        curl_close($ch);
        $data = json_decode($response);
        return $data->success;
    }

3. Updating the Database

$ php bin/console doctrine:schema:update –force to update

$ php bin/console server:run