如何将 reCaptcha v2 与 JS & PHP 表单集成？

Question

因此，我使用了使用 HTML、JS 和 PHP 的联系表向我发送电子邮件。我想添加 reCaptcha，但还没有想出如何去做。有谁可以帮助我吗？ :)

该代码段包含 JS 和 HTML，PHP 位于其下方。

// Contact Form Scripts

$(function() {

    $("#contactForm input,#contactForm textarea").jqBootstrapValidation({
        preventSubmit: true,
        submitError: function($form, event, errors) {
            // additional error messages or events
        },
        submitSuccess: function($form, event) {
            event.preventDefault(); // prevent default submit behaviour
            // get values from FORM
            var name = $("input#name").val();
            var email = $("input#email").val();
            var phone = $("input#phone").val();
            var message = $("textarea#message").val();
            var firstName = name; // For Success/Failure Message
            // Check for white space in name for Success/Fail message
            if (firstName.indexOf(' ') >= 0) {
                firstName = name.split(' ').slice(0, -1).join(' ');
            }
            $.ajax({
                url: "/contact_me.php",
                type: "POST",
                data: {
                    name: name,
                    phone: phone,
                    email: email,
                    message: message,
                },
                cache: false,
                success: function() {
                    // Success message
                    $('#success').html("<div class='alert alert-success'>");
                    $('#success > .alert-success').html("<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;")
                        .append("</button>");
                    $('#success > .alert-success')
                        .append("<strong>Your message has been sent. </strong>");
                    $('#success > .alert-success')
                        .append('</div>');

                    //clear all fields
                    $('#contactForm').trigger("reset");
                },
                error: function() {
                    // Fail message
                    $('#success').html("<div class='alert alert-danger'>");
                    $('#success > .alert-danger').html("<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;")
                        .append("</button>");
                    $('#success > .alert-danger').append("<strong>Sorry " + firstName + ", it seems that my mail server is not responding. Please try again later!");
                    $('#success > .alert-danger').append('</div>');
                    //clear all fields
                    $('#contactForm').trigger("reset");
                },
            });
        },
        filter: function() {
            return $(this).is(":visible");
        },
    });

    $("a[data-toggle=\"tab\"]").click(function(e) {
        e.preventDefault();
        $(this).tab("show");
    });
});


/*When clicking on Full hide fail/success boxes */
$('#name').focus(function() {
    $('#success').html('');
});

<form name="sentMessage" id="contactForm" novalidate>
                        <div class="row">
                            <div class="col-md-6">
                                <div class="form-group">
                                    <input type="text" class="form-control" placeholder="Your Name *" id="name" required data-validation-required-message="Please enter your name.">
                                    <p class="help-block text-danger"></p>
                                </div>
                                <div class="form-group">
                                    <input type="email" class="form-control" placeholder="Your Email *" id="email" required data-validation-required-message="Please enter your email address.">
                                    <p class="help-block text-danger"></p>
                                </div>
                                <div class="form-group">
                                    <input type="tel" class="form-control" placeholder="Your Phone *" id="phone" required data-validation-required-message="Please enter your phone number.">
                                    <p class="help-block text-danger"></p>
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="form-group">
                                    <textarea class="form-control" placeholder="Your Message *" id="message" required data-validation-required-message="Please enter a message."></textarea>
                                    <p class="help-block text-danger"></p>
                                </div>
                            </div>
                            <div class="clearfix"></div>
                            <div class="col-lg-12 text-center">
                                <div id="success"></div>
                                <button type="submit" class="btn btn-xl">Send Message</button>
                            </div>
       <div class="g-recaptcha" data-sitekey="6LfFrQgUAAAAAGZSQvSfEqXKgvoGObpwE_rreeur"></div>

                        </div>
                    </form>

PHP:

<?php
// Check for empty fields
if(empty($_POST['name'])      ||
   empty($_POST['email'])     ||
   empty($_POST['phone'])     ||
   empty($_POST['message'])   ||

   !filter_var($_POST['email'],FILTER_VALIDATE_EMAIL))

   {
   echo "No arguments Provided!";
   return false;
   }

$name = strip_tags(htmlspecialchars($_POST['name']));
$email_address = strip_tags(htmlspecialchars($_POST['email']));
$phone = strip_tags(htmlspecialchars($_POST['phone']));
$message = strip_tags(htmlspecialchars($_POST['message']));

// Create the email and send the message
$to = 'email@email.com'; // Add your email address inbetween the '' replacing yourname@yourdomain.com - This is where the form will send a message to.
$email_subject = "Website Contact Form:  $name";
$email_body = "You have received a new message from your website contact form.\n\n"."Here are the details:\n\nName: $name\n\nEmail: $email_address\n\nPhone: $phone\n\nMessage:\n$message";
$headers = "From: noreply@yourdomain.com\n"; // This is the email address the generated message will be from. We recommend using something like noreply@yourdomain.com.
$headers .= "Reply-To: $email_address";   
mail($to,$email_subject,$email_body,$headers);
return true;         
?>

Answer 1

要解决 Uncaught ReferenceError: $ is not defined，请在您的 JS 文件包含之前添加 <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jque‌ry.min.js">。

这应该可以解决 Uncaught ReferenceError: $ is not defined 问题。

编辑： 当您完成与表单相关的所有操作时。现在第一步是获取 reCAPTCHA API 密钥。要将 reCAPTCHA 添加到您的网站，您需要注册您的网站并获取 reCAPTCHA API 密钥。

您可以从 here 在 Google 注册您的站点，并获取用于显示 reCAPTCHA 小部件的站点密钥。在这里您还可以获得密钥，它有助于授权您的站点和 reCAPTCHA 服务器之间的通信。

第二步是reCAPTCHA API javaScript库收录。使用下面的代码来包含这个 reCAPTCHA API JS 库。

<script src="https://www.google.com/recaptcha/api.js" async defer></script>

然后第三步是在您的表单中使用小部件。您需要在提交按钮之前放置一个简单的 Google reCAPTCHA 小部件 <div>。将 data-sitekey 属性值处的 YOURSITEKEY 替换为第一步中的站点密钥。

<div class="g-recaptcha" data-sitekey="YOURSITEKEY"></div>

最后一步和第四步是使用您的服务器端代码处理 Google reCAPTCHA API 授权响应，以使用 Google reCAPTCHA 验证您的表单。只需将 YOURESECRETKEY 替换为您第一步中的实际密码即可。

$errMsg = '';
if(isset($_POST['submit']) && !empty($_POST['submit'])):
        //Check google recaptcha reponse...
    if(isset($_POST['g-recaptcha-response']) && !empty($_POST['g-recaptcha-response'])):
        //your site secret key
        $secret = 'YOURESECRETKEY';
        //get verify response data
        $verifyResponse = file_get_contents('https://www.google.com/recaptcha/api/siteverify?secret='.$secret.'&response='.$_POST['g-recaptcha-response']);
        $responseData = json_decode($verifyResponse);
        if($responseData->success):
            //Success: do code to store your data...
        else:
            $errMsg = 'Robot verification failed, please try again.';
        endif;
    else:
        $errMsg = 'Please click on the reCAPTCHA box.';
    endif;

    //If any error...
    if(!empty($errMsg)) :
        print $errMsg;
        return false;
    endif;
endif;

Answer 2

我一直在寻找任何解决方案，而对我有用的方法是 send_comment.js

$(function() {

    $("#contactForm input,#contactForm textarea").jqBootstrapValidation({  
    preventSubmit: true,
        submitError: function($form, event, errors) {
            // additional error messages or events
        },
        submitSuccess: function($form, event) {
            event.preventDefault(); // prevent default submit behaviour
            // get values from FORM

            var micaptcha = $("#g-recaptcha-response").val();

            }
            $.ajax({
                url: "model/validate.php",
                method: "POST",
                //Estos datos son enviados a validar con php
                data: {

                    micaptcha: micaptcha,

                },
                cache: false,
                success: function(data) {

                },
                error: function(data) {

                },
                complete: function (data){

                },
            });
        },

    });

    $("a[data-toggle=\"tab\"]").click(function(e) {
        e.preventDefault();
        $(this).tab("show");
    });
});

validate.php

<?php 
    require_once ('init.php');//contains the ReCaptcha initialization, return recaptcha
    require_once('conexion.php');//My connection
    $micaptcha = $_POST["micaptcha"];//I send with the js micaptcha
    $response = $recaptcha->verify($_POST["micaptcha"]);
        if($response->isSuccess()){
           //mi success code
        }
        else{
            echo $resultado;
            die("Invalid Captcha!");
        }

?>

希望能帮到你

对不起英语，不是我的母语。

如何将 reCaptcha v2 与 JS & PHP 表单集成？

How to integrate reCaptcha v2 with JS & PHP form?

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