有人可以幫我解決這個問題嗎？我已經(jīng)嘗試了幾個月，但只在 YouTube 和 Google 等上遇到了令人困惑的信息。我正在為時事通訊建立訂閱表格。它只是一個電子郵件字段和一個提交按鈕。我得到了一個非常簡單的 php 代碼，該表單工作正常，但如果沒有 recaptcha，它就會暴露給機(jī)器人：<?php $email = $_POST['email'];$formcontent="From: $email \n";$recipient = "contact@myemail.com";$subject = "Subscribe";$mailheader = "From: $email \r\n";mail($recipient, $subject, $formcontent, $mailheader) or die("Error!");echo "You have subscribed. You may close this tab now etc etc.";?>這就是我所需要的。此代碼位于 mail.php 文件中，我在表單中使用 action="mail.php"，該表單位于單獨(dú)的 html 文件中。有人可以建議我添加額外的代碼來添加 SecretKey 并進(jìn)行一些基本的 recaptcha 服務(wù)器集成嗎？我無法理解 Google 信息網(wǎng)站。他們使用我從未遇到過的術(shù)語。我不知道他們想說什么。
2 回答
九州編程
TA貢獻(xiàn)1785條經(jīng)驗(yàn) 獲得超4個贊
如果您在表單上使用了 recaptcha，那么在提交表單時，PHP 中的 $_POST 將具有“g-recaptcha-response”。然后，您可以使用curl向Google發(fā)出API請求以驗(yàn)證他們的響應(yīng)。
以下是非?；A(chǔ)的內(nèi)容，未經(jīng)測試。您將需要做更多的工作來改善用戶體驗(yàn)，例如使用 Ajax
<?php
function verifyRecaptcha($response)
{
//Replace the below with your secret key
$recaptchaSecret = '<google_recaptcha_secret_key>';
$ch = curl_init('https://www.google.com/recaptcha/api/siteverify');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, array(
'secret' => $recaptchaSecret,
'response' => $response,
));
$output = curl_exec($ch);
curl_close($ch);
//the response from Google will be a json string so decode it
$output = json_decode($output);
//one of the response keys is "success" which is a boolean
return $output->success;
}
//First filter the POSTed data
$email = filter_input(INPUT_POST,'email',FILTER_VALIDATE_EMAIL);
$captchaResponse = filter_input(INPUT_POST,'g-recaptcha-response',FILTER_SANITIZE_STRING);
//If either email or catcha reponse is missing then one or both were not completed before submit
if(empty($email) || empty($captchaResponse))
{
//TODO: Better error handling here
echo "There was an error with the submitted data.";
}
elseif(!verifyRecaptcha($captchaResponse)) //this calls the above function to make the curl request
{
//TODO: Better error handling here
echo "Recaptcha verification failed.";
}
else
{
//I would suggest you don't use their email as the "From" address, rather it should be a domain
//that is allowed to send email from the server
//Instead you want to use their email as the "Reply-To" address
$formcontent = "From: $email \n";
$recipient = "contact@myemail.com";
$subject = "Subscribe";
$mailheader = "From: $email \r\n";
mail($recipient, $subject, $formcontent, $mailheader) or die("Error!");
echo "You have subscribed. You may close this tab now etc etc.";
}
呼喚遠(yuǎn)方
TA貢獻(xiàn)1856條經(jīng)驗(yàn) 獲得超11個贊
順便說一句，這是形式：
<form class="form" action="mail5.php" method="POST">
<p class="email">
<input type="text" name="email" id="email" placeholder="mail@example.com" required />
</p>
<div class="g-recaptcha" data-sitekey="My Public Key"></div>
<p class="submit">
<input type="submit" value="Subscribe!" />
</p>
</form>
在我得到這個之前：
<script src="https://www.google.com/recaptcha/api.js" async defer></script>
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