Recaptcha不是在洗澡吗？未定义的索引：recaptcha_challenge_field

Question

我已经多次尝试但是重新开始仍然没有工作，总是说Undefined index：recaptcha_challenge_field

但我遵循了指示...

Hare是我的编码...我使用yii框架

在PHP中：

<?php

 <form id="registration" method="post" action="<?php echo Yii::app()->getHomeUrl(); ?>?r=Register/Registration">

//some input detail


//at the bottom the recaptcha code
    <?php
            require_once('captcha/recaptchalib.php');
            $publickey = "the_public_key"; // you got this from the signup page
            echo recaptcha_get_html($publickey);
            ?>

</form>
?>

那么在控制器中

public function actionRegistration(){


        require_once('captcha/recaptchalib.php');
        $privatekey = "the_private_key";
        $resp = recaptcha_check_answer ($privatekey,
                            $_SERVER["REMOTE_ADDR"],
                            $_POST["recaptcha_challenge_field"],
                            $_POST["recaptcha_response_field"]);

        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 {
            echo "Your code here to handle a successful verification";
        }

}

有任何建议让它在这个yii项目中运作吗？

Answer 1

$_POST变量可能没有您要查找的内容。

当您遇到此类问题时，最好的办法是致电var_dump()，查看 被添加到$_POST的内容，例如：

require_once('captcha/recaptchalib.php');
$privatekey = "the_private_key";
//var dump for debugging:
echo '<pre>';
var_dump($_POST);
echo '</pre>';
exit;

//now the rest of your code, as before:
$resp = recaptcha_check_answer ($privatekey,
                        $_SERVER["REMOTE_ADDR"],
                        $_POST["recaptcha_challenge_field"],
                        $_POST["recaptcha_response_field"]);