Awesome
CodeIgniter Recaptcha
An easy-to-use CodeIgniter library to work with reCAPTCHA version 2.0 a.k.a NO CAPTCHA reCAPTCHA.
Installation
Copy the files to their respective location.
##Configuration Open "application/config/recaptcha.php" and put your SITE key, SECRET key, and desired language there.
$config['recaptcha_sitekey'] = "";
$config['recaptcha_secretkey'] = "";
$config['lang'] = "";
Site key and secret key can be obtained from https://www.google.com/recaptcha/admin/, while language code can be obtained from https://developers.google.com/recaptcha/docs/language.
Basic Usage Instruction
Call render() method from your VIEW file.
It will render reCAPTCHA widget onto your view
<?php echo $this->recaptcha->render(); ?>
Validate in your CONTROLLER
// Load the library
$this->load->library('recaptcha');
// Catch the user's answer
$captcha_answer = $this->input->post('g-recaptcha-response');
// Verify user's answer
$response = $this->recaptcha->verifyResponse($captcha_answer);
// Processing ...
if ($response['success']) {
// Your success code here
} else {
// Something goes wrong
var_dump($response);
}