Question

我正在尝试在我的网站上使用Google reCaptcha，在完成几个教程之后，我在HTML页面上使用了以下内容：

<section class="row" id="Contact">
        <div class="col-full">
             <form method="post" action="contact.php">
                <input name="sender" placeholder="Name" size="30"><br><br>
                <input name="senderEmail" placeholder="Email" size="30"><br><br>
                <textarea rows="10" cols="30" name="message" placeholder="Message"></textarea><br><br>
                <div class="g-recaptcha" data-sitekey="6LdFOQcTAAAAABKsku3bD6Mp3HuGYNDRN1tLlSkw"></div><br>
                <input type="submit" name="submit">
            </form>
        </div>
</section>

在<head>标记中包含以下内容：

    <script src='https://www.google.com/recaptcha/api.js'></script>

表单加载以下PHP脚本，如Google's tutorial所示：

<?php

require_once('recaptchalib.php');

echo "<pre> _POST: =========\n";
print_r($_POST);
echo "\n=========\n</pre>";

$privatekey = "privatekey";
$resp = recaptcha_check_answer ($privatekey,
                             $_SERVER["REMOTE_ADDR"],
                             $_POST["recaptcha_challenge_field"],
                             $_POST["recaptcha_response_field"]);
if (!$resp->is_valid)
{
  die ("The reCAPTCHA wasn't entered correctly. Go back and try it again." .
    "(reCAPTCHA said: " . $resp->error . ")");
}

＆GT;

问题是我总是得到错误incorrect-captcha-sol并且无法理解原因。我从PHP脚本得到的输出是：

 _POST: =========
Array
(
 [g-recaptcha-response] => 03AHJ_VusLbTZVbhMBH2-cyOdbM81IoG7ShDtTmyVa8e34PbghyKaRYnrb4bbeuPoJXFa-2sD5B-UIOWq_zClya-VOtq8iLHXBkAR0PrElQYiQjKTm2POkjci43-yEaenh1tu_M4vKsjJGswKFlVs6IdlWhdVaMdznLBeutgHjiHRBy7fzAi0It0x5IadwMxAqVpmG7F1gRvUcQmakij4ObTqPUK4lPdc84HkkKmY62uJ45d8DwKSeR2ifRg6wL9JFxpcZkjSp4oIlltin2uCMiBDU58QQQLLKPJuSKcmm-N5p7OEt7E6gc4UZyTLpKrJ-9mMUusvLpixwFHop0e5155vEZssxzu6Zizo-LyB1mX3XOrQ8LEceydssgLvl9gJBC4f9zDBKPQdLmjfxVKdPCXLtUZVNbMDYe7cNL7gsgwJC-hLbZYTh6UV1nUdKnFnkHAACjI7M28hpKWdiyIwcJ5UAzTMPfIllMw
)

=========

为什么我的POST上没有recaptcha_challenge_field或recaptcha_response_field字段，我该如何解决？

Answer 1

我用于我的recaptcha的代码如下：

这是标题：

<script src='https://www.google.com/recaptcha/api.js'></script>

这就是你想要实际重新接收的地方：

<div class="g-recaptcha" data-sitekey="PUBLIC_KEY_HERE"></div>

您可以将其添加到div以更改主题：data-theme="theme"

这是PHP脚本：

if(isset($_POST['g-recaptcha-response']))
$captcha=$_POST['g-recaptcha-response'];
if(!$captcha){
    //Captcha hasn't been checked
}
$response=json_decode(file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=SECRET_KEY_HERE&response=".$captcha."&remoteip=".$_SERVER['REMOTE_ADDR']), true);
if($response['success'] == false){
    //Captcha incorrect
}
else {
    //Success code here
}

Answer 2

根据我所看到的，您在检查答案后没有else选项。你检查它是否错了，但没有什么可以告诉它如果用户做对了该怎么办。尝试添加以下内容：

if (!$resp->is_valid) {
    die ("The reCAPTCHA wasn't entered correctly. Go back and try it again." . "(reCAPTCHA said: " . $resp->error . ")");
}
else {
    //Code for success here
}

Answer 3

我使用Google New reCaptcha

https://github.com/google/recaptcha官方代码

这是StandAlone包。它适用于php很棒。

在验证码失败后，我使用jquery代码重新加载capctha

grecaptcha.reset();

因为recapctha响应在验证后到期且验证码未重新加载，因此它会一次又一次地发送过期响应，直到您不重新加载页面以获取新的验证码。

验证码

require('/path/to/recaptcha/autoload.php');

$recaptcha = new \ReCaptcha\ReCaptcha($secret);
$resp = $recaptcha->verify($gRecaptchaResponse, $remoteIp);
if ($resp->isSuccess()) {
} else { $errors = $resp->getErrorCodes();
foreach ($errors as $code) {
echo "<div class=\"alert alert-danger\">$code</div>";
}
echo "<p><strong>Note:</strong> Error code <tt>missing-input-response</tt> may mean the user just didn't complete the reCAPTCHA.</p>";
}

使用Google reCaptcha始终显示'wrong-captcha-sol'

3 个答案: