Question

我正在尝试创建一个自动提示框，显示错误的reCAPTCHA输入错误，此时我有一个链接到相同页面的函数'redirect_to'，我打算在文本中输入错误形成。如果有人能帮助我，我会非常感激，我没有太多的javascript经验。

 require_once($_SERVER['DOCUMENT_ROOT'] . '/recaptcha/recaptchalib.php');
        $privatekey ="*********";
        $resp = recaptcha_check_answer ($privatekey,
                            $_SERVER['REMOTE_ADDR'],
                            $_POST['recaptcha_challenge_field'],
                            $_POST['recaptcha_response_field']);
        $str_result = "";
        if (!$resp->is_valid) {

            redirect_to("login_recap.php");

             // What happens when the CAPTCHA was entered incorrectly
            $message = "The reCAPTCHA wasn't entered correctly. Go back and try it again. (reCAPTCHA   said: " . $resp->error . ")";
            echo $message;
            exit();

        }

Answer 1

您可以使用GET参数重定向回登录页面，例如：login.php?captchaError=1。然后在登录页面上添加：

<?php
if(isset($_GET['captchaError]))
{
echo("<script type='text/javascript'>
alert("Captcha entered incorrectly.");
</script>
");
}
?>

这将检查是否有错误并输出一些JS来显示警告。

reCAPTCHA的javascript提示框

1 个答案: