奇怪的是,Google的关于Recaptcha的文档没有我想的那样有用。我被要求采用当前的现有表格(每天被发送几次垃圾邮件),并使用Google的新Recaptcha对其进行更新。对于旧的验证码,有很多教程,但是对于新的验证码则不多。我基本上只是想要一个简单的表单来捕获名称,电子邮件,消息,然后用Recaptcha替换我当前的“反机器人字段”(我使用的字段基本上询问您2 + 2是什么,以及您是否输入了任何内容,但是4,它不会发送)。如果必填字段有效且Recaptcha有效,那么我希望它向我发送一封包含表单字段内容的电子邮件。
我经历了简单的步骤:
<script src='https://www.google.com/recaptcha/api.js'></script>
<div class="g-recaptcha" data-sitekey="#MYKEY#"></div>
此时,recaptcha出现得很好。但是服务器端部分有些困惑。
这是我更新后的联系表格,其中显示recaptcha:
<form method="post" action="contact-post.php">
<label>Your Name (required):</label>
<input name="name" type="text" placeholder="Enter your name here">
<label>Email Address (required):</label>
<input name="email" type="email" placeholder="Enter your email address here">
<label>Your Message (required):</label>
<textarea name="message" placeholder="Write your message here"></textarea>
<div style="margin-top:20px;" class="g-recaptcha" data-sitekey="#MYKEY#"></div>
<input id="submit" name="submit" type="submit" value="Submit Form">
</form>
这是我当前的POST页面(我不确定在Recaptcha代码中的添加位置):
<?php
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$human = $_POST['human'];
$from = 'From: My Website';
$to = '[email protected]';
$subject = 'Request Form';
$body = "Name: $name \n E-Mail: $email \nMessage:\n$message";
if ($_POST['submit']) {
if ($email != '') {
if ($human == '4') {
if (mail ($to, $subject, $body, $from)) {
echo '<p>You have successfully submitted your information to PS4RS. Subscribers to our mailing list will begin to periodically receive updates.</p>';
} else {
echo '<p>Something went wrong, go back and try again!</p><p><input type="button" value="Go Back" onclick="history.back(-1)" class="goback" /></p>';
}
} else if ($_POST['submit'] && $human != '4') {
echo '<p>You answered the anti-spam question incorrectly!</p><p><input type="button" value="Go Back" onclick="history.back(-1)" class="goback" /></p>';
}
} else {
echo '<p>You need to fill in all required fields!!</p><p><input type="button" value="Go Back" onclick="history.back(-1)" class="goback" /></p>';
}
}
?>
欢迎任何帮助。我觉得这可能是一个很普通的人,他们正在尝试将其实现到当前的工作形式中。
最佳答案
查看此链接:
https://developers.google.com/recaptcha/docs/verify
简而言之,您应该向
https://www.google.com/recaptcha/api/siteverify?secret=YOUR_SECRET&response=RESPONSE_CAME_FROM_YOUR_FORM&remoteip=USER_IP_ADDRESS
在YOUR_SECRET是您在ReCAPTCHA网站上收到的 key 的情况下,可以通过
$_SERVER
数组接收USER_IP_ADDRESS,而RESPONSE_CAME_FROM_YOUR_FORM是与表单一起发送的字符串。它存储在$_POST['g-recaptcha-response']
中。你可以像这样通过
file_get_contents($url)
来做到这一点$data = file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=YOUR_SECRET&response=RESPONSE_CAME_FROM_YOUR_FORM&remoteip=USER_IP_ADDRESS");
在
$data
中,您将收到包含JSONt_code字段的JSON对象。如果成功是错误的,那么它就不是人类,您应该success
。我建议您在程序开始时检查一下。更新:
JSON对象的解码如下所示:
$data = json_decode($data); // This will decode JSON to object
if(!$data->success)
exit();
更新:
有时,
exit()
将无法建立安全的https连接。相反,您可以使用file_get_contents($url)
使您的代码看起来像:<?php
$your_secret = "<secret_key_you_received_from_recaptcha_site>";
$client_captcha_response = $_POST['g-recaptcha-response'];
$user_ip = $_SERVER['REMOTE_ADDR'];
$captcha_verify = open_https_url("https://www.google.com/recaptcha/api/siteverify?secret=$your_secret&response=$client_captcha_response&remoteip=$user_ip");
$captcha_verify_decoded = json_decode($captcha_verify);
if(!$captcha_verify_decoded->success)
die('DIRTY ROBOT');
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$human = $_POST['human'];
$from = 'From: My Website';
$to = '[email protected]';
$subject = 'Request Form';
$body = "Name: $name \n E-Mail: $email \nMessage:\n$message";
if ($_POST['submit']) {
if ($email != '') {
if ($human == '4') {
if (mail ($to, $subject, $body, $from)) {
echo '<p>You have successfully submitted your information to PS4RS. Subscribers to our mailing list will begin to periodically receive updates.</p>';
} else {
echo '<p>Something went wrong, go back and try again!</p><p><input type="button" value="Go Back" onclick="history.back(-1)" class="goback" /></p>';
}
} else if ($_POST['submit'] && $human != '4') {
echo '<p>You answered the anti-spam question incorrectly!</p><p><input type="button" value="Go Back" onclick="history.back(-1)" class="goback" /></p>';
}
} else {
echo '<p>You need to fill in all required fields!!</p><p><input type="button" value="Go Back" onclick="history.back(-1)" class="goback" /></p>';
}
}
?>
关于php - PHP表单+ Google reCAPTCHA,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/27681060/