Google reCAPTCHA php sample code
Google 推出了 驗證 是否為機器人的服務 以下這段是跟 Google 驗證資料是否正確的程式 $captcha = $_POST['g-recaptcha-response']; $secret_key = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'; $response = validate_google_recaptcha($secret_key, $captcha); if ($response->success == false) { echo 'You are spammer ! Get the @$%K out'; } else { echo 'Thanks for posting comment.'; } function validate_google_recaptcha($secret_key, $captcha) { $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, "https://www.google.com/recaptcha/api/siteverify"); curl_setopt($ch, CURLOPT_HEADER, false); curl_setopt($ch, CURLOPT_RETURNTRANSFER,1); $param = "secret=".$secret_key."&response=".$captcha."&remoteip=".$_SERVER['REMOTE_ADDR']; curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $param); $temp = curl_exec($ch); curl_close($ch); return json_decode($temp); }