Php Google reCaptcha-空错误消息，未收到质询响应（未正确输入reCaptcha）

编辑：我正在使用reCaptcha 2.0，我是否应该使用recaptchalib.php

现场演示

当我提交表单时（忽略输入字段的空白值）（调试代码），我得到以下错误：

错误

_POST: =========
Array
(
    [first_name] => 
    [last_name] => 
    [email] => 
    [subject] => 
    [comments] => 
    [g-recaptcha-response] => big-long-value
)

=========

没有正确输入reCAPTCHA。回去再试一次`

如何设置我的网页：

HTML

<form id="query-form" action="wp-content/themes/portfolio/submit-form.php" method="post" name="myForm">
    <input id="first_name" name="first_name" size="35" type="text" placeholder="e.g. John" />
    <input id="last_name" name="last_name" size="35" type="text" placeholder="e.g. Smith" />
    <input id="email" name="email" size="35" type="text" placeholder="e.g. example@domain.com" />
    <input id="subject" name="subject" size="35" type="text" placeholder="e.g. Feedback" />
    <textarea id="comments" name="comments"></textarea>
    <div class="g-recaptcha" data-sitekey="6Le8WxcTAAAAAGqymotU9wtOBFEmWgjM3j2kqTcB"></div>

    <input type="submit" value="Submit" />
</form>

Submit使用方法POST调用操作Submit-form.php，如下所示

PHP

<?php
require_once('recaptchalib.php'); 
$privatekey = "the-key-that-i-put-in"; 
echo "<pre> _POST: =========\n"; print_r($_POST); echo "\n=========\n</pre>";
$resp = recaptcha_check_answer ($privatekey, $_SERVER["REMOTE_ADDR"], 
    $_POST["recaptcha_challenge_field"], 
    $_POST["recaptcha_response_field"]); 
$resp = null;
if (!$resp->is_valid) { 
// What happens when the CAPTCHA was entered incorrectly 
    die ("The reCAPTCHA wasn't entered correctly. Go back and try it again." . "(reCAPTCHA said: " . $resp->error . ")"); } 
    else { 
        // Your code here to handle a successful verification 
        include '../../../../process.php';
    } 

?>

---

要显示reCAPTCHA小部件，您不需要任何库文件，只需包含必要的JavaScript资源，如下所示：

<?php   
    if(isset($_POST['g-recaptcha-response']) && !empty($_POST['g-recaptcha-response'])){
        $privatekey = "YOUR_PRIVATE_KEY";

        //get verified response data
        $param = "https://www.google.com/recaptcha/api/siteverify?secret=".$privatekey."&response=".$_POST['g-recaptcha-response'];
        $verifyResponse = file_get_contents($param);
        $responseData = json_decode($verifyResponse);

        if($responseData->success){
            // success
            echo "success";

        }else{
            // failure
            echo "failure";
        }
    }else{
        // user didn't enter reCAPTCHA
        echo "The reCAPTCHA wasn't entered correctly. Go back and try it again.";
    }
?>


reCAPTCHA演示：简单页面



以下是参考资料：




现在来看看用户的反应。由于您使用的是Google reCAPTCHA V2，因此应该使用POST参数g-reCAPTCHA-response获取用户的响应

以下是参考资料：




因此，您的代码应该如下所示：

<?php   
    if(isset($_POST['g-recaptcha-response']) && !empty($_POST['g-recaptcha-response'])){
        $privatekey = "YOUR_PRIVATE_KEY";

        //get verified response data
        $param = "https://www.google.com/recaptcha/api/siteverify?secret=".$privatekey."&response=".$_POST['g-recaptcha-response'];
        $verifyResponse = file_get_contents($param);
        $responseData = json_decode($verifyResponse);

        if($responseData->success){
            // success
            echo "success";

        }else{
            // failure
            echo "failure";
        }
    }else{
        // user didn't enter reCAPTCHA
        echo "The reCAPTCHA wasn't entered correctly. Go back and try it again.";
    }
?>

你好，Rajdeep Paul，谢谢你的回复。我已经得到了你发布的代码，除了当我在没有首先进入recaptcha的情况下单击submit时，else没有启动。寻找yourself@user1395909只需添加一个
else
部分即可。我已经更新了代码。@user1395909很高兴我能帮上忙。：-）如果答案解决了您的问题，请将其标记为已接受。GET选项似乎不再有效。以前是这样的。。我想？？？我使用CURL更新了POST选项，这解决了我的问题