使用 Google reCaptcha 总是显示“in Correct-captcha-sol”

2024-04-03

我正在尝试在我的网站上使用 Google reCaptcha,在学习了几个教程后,我在 HTML 页面上使用如下:

<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>

内含以下内容<head> tag:

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

该表单加载以下 PHP 脚本,如下所示谷歌的教程 https://code.google.com/p/recaptcha/wiki/FAQ:

<?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 . ")");
}

?>

问题是我总是收到错误incorrect-captcha-sol并且不明白为什么。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
)

=========

为什么我没有recaptcha_challenge_field or recaptcha_response_field我的 POST 上的字段以及如何解决它?


我用于验证码的代码如下:

这出现在标题中:

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

这就是您想要实际验证码的位置:

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

您可以将其添加到 div 来更改主题: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
}
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