Php 如何让reCaptcha使用ajax.load

我希望在jquery'.load'ajax函数中使用reCaptcha，以便将信息传递到我的PHP联系人表单。我已经确定了如何使用此方法发送诸如名称值、主题值等内容，但是，我不确定如何传递reCaptcha信息

目前，当我提交表单时，我收到一个PHP错误，提示“未定义索引：g-recaptcha-response”。我相信这与Ajax方面有关

在这方面的任何帮助都将是惊人的，因为我完全不知所措

jQuery：

$("#contactForm").submit(function(event) {
  event.preventDefault();
  var name = $("#name").val();
  var email = $("#email").val();
  var subject = $("#subject").val();
  var phone = $("#phone").val();
  var company = $("#company").val();
  var message = $("#message").val();
  var submit = $("#submit").val();

$(".form-message").load("contactForm.php", {
   name: name,
   email: email,
   subject: subject,
   phone: phone,
   company: company,
   message: message,
   submit: submit
}); 

PHP:

if（isset（$\u POST['submit']））{
需要'dist/PHPMailer/phpmailerautoad.php'；
$mail=新的PHPMailer；
$name=$_POST['name']；
$email=$_POST['email']；
$subject=$_POST['subject']；
$phone=$_POST['phone']；
$company=$_POST['company']；
$message=$_POST['message']；
$secretKey=“--KEY--”；
$responseKey=$_POST['g-recaptcha-response']；
$userIP=$\u服务器['REMOTE\u ADDR']；
$url=”https://www.google.com/recaptcha/api/siteverify?secret=$secretKey&response=$responseKey&remoteip=$userIP”；
$response=file\u get\u contents（$url）；
$mail->HOST='smtp.gmail.com'；
$mail->Port=587；
$mail->SMTPAuth=true；
$mail->SMTPSecure='tls'；
$mail->Username='--Username--'；
$mail->Password='--Password--'；
$mail->setFrom（'--email--'，'Contact Form Submission'）；
$mail->addAddress（'--email--'）；
$mail->addReplyTo（$email，$name）；
$mail->isHTML（true）；
$mail->Subject=$Subject；
$mail->Body='Name:'.$Name.
Email:'.$Email.
Subject:'.$Subject.
Phone:'.$Phone.
Company:'.$Company.
Message:'.$Message.
'；

HTML:

您可以使用该方法从客户端获取验证码的值，然后使用ajax/jquery发送该值

<script type="text/javascript">


    ("#contactForm").submit(function(event) {
  event.preventDefault();
  var name = $("#name").val();
  var email = $("#email").val();
  var subject = $("#subject").val();
  var phone = $("#phone").val();
  var company = $("#company").val();
  var message = $("#message").val();
  var submit = $("#submit").val();
  var captcha = grecaptcha.getResponse(); //get captcha

$(".form-message").load("contactForm.php", {
   name: name,
   email: email,
   subject: subject,
   phone: phone,
   company: company,
   message: message,
   submit: submit,
   captcha : captcha
}); 


</script>

（“#联系方式”）。提交（功能（事件）{
event.preventDefault（）；
var name=$（“#name”）.val（）；
var email=$（“#email”）.val（）；
var subject=$（“#subject”）.val（）；
var phone=$（“#phone”）.val（）；
var company=$（“#company”）.val（）；
var message=$（“#message”）.val（）；
var submit=$（“#submit”）.val（）；
var captcha=grecaptcha.getResponse（）；//获取验证码
$（“.form message”）.load（“contactForm.php”{
姓名:姓名,，
电邮:电邮,，
主题:主题,，
电话:电话,，
公司:公司,，
讯息:讯息,，
提交：提交，
验证码：验证码
}); 

然后是你的php

<?php


if(isset($_POST['submit'])) {

 require 'dist/PHPMailer/PHPMailerAutoload.php';
 $mail = new PHPMailer;

 $name = $_POST['name'];
 $email = $_POST['email'];
 $subject = $_POST['subject'];
 $phone = $_POST['phone'];
 $company = $_POST['company'];
 $message = $_POST['message'];
 $secretKey = "--KEY--";
 $responseKey = $_POST['captcha']; //captcha
 $userIP = $_SERVER['REMOTE_ADDR'];

 $url = "https://www.google.com/recaptcha/api/siteverify?secret=$secretKey&response=$responseKey&remoteip=$userIP";
$response = file_get_contents($url);

 $mail->HOST = 'smtp.gmail.com';
 $mail->Port = 587;
 $mail->SMTPAuth = true;
 $mail->SMTPSecure = 'tls';
 $mail->Username = '--username--';
 $mail->Password = '--password--';

 $mail->setFrom('--email--', 'Contact Form Submission');
 $mail->addAddress('--email--');
 $mail->addReplyTo($email, $name);

 $mail->isHTML(true);
 $mail->Subject= $subject;
 $mail->Body='<p>Name: '.$name. '<br>Email: '.$email.'<br>Subject: '.$subject.'<br>Phone: '.$phone.'<br>Company: '.$company.'<br>Message: '.$message.'</p>';

---

在jquery上：
var g-recaptcha-response=grecaptcha.getResponse（）；
然后像其他字段一样发送
g-recaptcha-response
<script type="text/javascript">


    ("#contactForm").submit(function(event) {
  event.preventDefault();
  var name = $("#name").val();
  var email = $("#email").val();
  var subject = $("#subject").val();
  var phone = $("#phone").val();
  var company = $("#company").val();
  var message = $("#message").val();
  var submit = $("#submit").val();
  var captcha = grecaptcha.getResponse(); //get captcha

$(".form-message").load("contactForm.php", {
   name: name,
   email: email,
   subject: subject,
   phone: phone,
   company: company,
   message: message,
   submit: submit,
   captcha : captcha
}); 


</script>

<?php


if(isset($_POST['submit'])) {

 require 'dist/PHPMailer/PHPMailerAutoload.php';
 $mail = new PHPMailer;

 $name = $_POST['name'];
 $email = $_POST['email'];
 $subject = $_POST['subject'];
 $phone = $_POST['phone'];
 $company = $_POST['company'];
 $message = $_POST['message'];
 $secretKey = "--KEY--";
 $responseKey = $_POST['captcha']; //captcha
 $userIP = $_SERVER['REMOTE_ADDR'];

 $url = "https://www.google.com/recaptcha/api/siteverify?secret=$secretKey&response=$responseKey&remoteip=$userIP";
$response = file_get_contents($url);

 $mail->HOST = 'smtp.gmail.com';
 $mail->Port = 587;
 $mail->SMTPAuth = true;
 $mail->SMTPSecure = 'tls';
 $mail->Username = '--username--';
 $mail->Password = '--password--';

 $mail->setFrom('--email--', 'Contact Form Submission');
 $mail->addAddress('--email--');
 $mail->addReplyTo($email, $name);

 $mail->isHTML(true);
 $mail->Subject= $subject;
 $mail->Body='<p>Name: '.$name. '<br>Email: '.$email.'<br>Subject: '.$subject.'<br>Phone: '.$phone.'<br>Company: '.$company.'<br>Message: '.$message.'</p>';