label = $label; } public function returnField($form_name, $name, $value = '') { $field = << FIELD; $class = !empty($this->error) ? ' class="error"' : ''; return array( 'messages' => !empty($this->custom_error) && !empty($this->error) ? $this->custom_error : $this->error, 'label' => $this->label == false ? false : sprintf('%s', $name, $class, $this->label), 'field' => sprintf($field, 'YOUR_PUBLIC_KEY'), 'html' => $this->html ); } public function validate($val) { $url = 'http://www.google.com/recaptcha/api/verify'; $data = array( 'privatekey' => urlencode('YOUR_PRIVATE_KEY'), 'remoteip' => urlencode($_SERVER['REMOTE_ADDR']), 'challenge' => urlencode($_REQUEST['recaptcha_challenge_field']), 'response' => urlencode($_REQUEST['recaptcha_response_field']), ); $data_string = ''; foreach ($data as $key => $val) { $data_string .= $key . '=' . $val . '&'; } $data_string = rtrim($data_string, '&'); $host = 'www.google.com'; $http_request = "POST /recaptcha/api/verify HTTP/1.0\r\n"; $http_request .= "Host: $host\r\n"; $http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n"; $http_request .= "Content-Length: " . strlen($data_string) . "\r\n"; $http_request .= "User-Agent: reCAPTCHA/PHP\r\n"; $http_request .= "\r\n"; $http_request .= $data_string; $response = ''; if (false == ( $fs = @fsockopen($host, 80, $errno, $errstr, 10) )) { die('Could not open socket'); } fwrite($fs, $http_request); while (!feof($fs)) { $response .= fgets($fs, 1160); // One TCP-IP packet } fclose($fs); $response = explode("\r\n\r\n", $response); $response = explode("\n", $response[1]); if (!isset($response[0]) || $response[0] != 'true') { $this->error[] = 'You failed to prove you humanity'; } //curl_close($ch); return empty($this->error) ? true : false; } }