将 reCaptcha 集成到现有 contact.php

Question

我无法将新的 Google reCaptcha 集成到我现有的表单处理 php 脚本中。以前，它在 contact.html 页面将表单重定向到 contact.php 电子邮件处理程序时工作得非常好，但我一直收到大量垃圾邮件，因此希望使用 reCaptcha。

我使用单独的 php 文件来处理电子邮件。相关contact.html代码如下：

<form id="contact-form" method="post" action="contact.php" role="form">

<div class="messages"></div>
<div class="controls">

    <div class="row">
        <div class="col-md-7">
            <div class="form-group">
                <label for="form_name">Name *</label>
                <input id="form_name" type="text" name="name" class="form-control" placeholder="Please enter your name *" required="required" data-error="Name is required">
                <div class="help-block with-errors"></div>
            </div>
             <div class="form-group">
                <label for="form_email">Email *</label>
                <input id="form_email" type="email" name="email" class="form-control" placeholder="Please enter your email address *" required="required" data-error="A valid email is required">
                <div class="help-block with-errors"></div>
        </div>
         <div class="form-group">
                <label for="form_phone">Telephone</label>
                <input id="form_phone" type="tel" name="phone" class="form-control" placeholder="Please enter a contact telephone number (optional)">
                <div class="help-block with-errors"></div>
            </div>
         <div class="form-group">
                <label for="form_message">Message *</label>
                <textarea id="form_message" name="message" class="form-control" placeholder="Please enter your message *" rows="4" required="required" data-error="Please enter your message"></textarea>
                <div class="help-block with-errors"></div>
            </div>
        <p>
          <div class="g-recaptcha" data-sitekey="6LfsexAUAAAAAF_qKlK7De8kA7XM2MGrGKTyK60M"></div></p>

         <input type="submit" class="btn btn-success btn-send" value="Submit"></p>
         <br><p class="text-muted"><strong>*</strong> These fields are required.</p>
         </form>

contact.php 文件中的现有代码是这样的：

<?php


$from= "example@example.com";
$sendTo = "me@me.com";
$subject = "New message from contact form";
$fields = array('name' => 'Name', 'phone' => 'Phone', 'email' => 'Email', 'message' => 'Message');
$okMessage = 'Thank you for your message. One of the team will be in touch as soon as possible.';
$errorMessage = 'There was an error while submitting the form. Please try again later';


try
{
$emailText = "You have new message from contact form\n=============================\n";

foreach ($_POST as $key => $value) {

    if (isset($fields[$key])) {
        $emailText .= "$fields[$key]: $value\n";
    }
}

mail($sendTo, $subject, $emailText, "From: " . $from);

$responseArray = array('type' => 'success', 'message' => $okMessage);
}
catch (\Exception $e)
{
$responseArray = array('type' => 'danger', 'message' => $errorMessage);
}

if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
$encoded = json_encode($responseArray);

header('Content-Type: application/json');

echo $encoded;
}
else {
echo $responseArray['message'];
}

这目前工作正常，但是当我尝试将 reCaptcha 验证集成到 php 时，电子邮件不会生成并且 php 中的成功消息不会显示在网页。

任何将 reCaptcha 验证集成到 php 文件的帮助将不胜感激！

编辑：reCaptcha 的标签根据需要位于 html 中，小部件在网站上显示和运行良好。但是，我尝试将其集成到现有 php 中的每个示例代码都无法正常工作，并且不会生成电子邮件（因此我将其遗漏在上面的 php 文件中).提前致谢！

编辑 2：我修改了 php 脚本并尝试按照 CoolCodeGuy 的有用评论对其进行清理。但是，鉴于我的预算 php 技能，它现在不起作用。请帮忙！！

            <?php


    $from= "example@example.com";
    $sendTo = "me@me.com";
    $subject = "New message from contact form";
    $fields = array('name' => 'Name', 'phone' => 'Phone', 'email' => 'Email', 'message' => 'Message');
    $okMessage = 'Thank you for your message. One of the team will be in touch as soon as possible.';
    $errorMessage = 'There was an error while submitting the form. Please try again later';
    $url = 'https://www.google.com/recaptcha/api/siteverify';
    $privatekey = "xxxxxxxxx"; //whatever your PRIVATE key is
    $response = file_get_contents($url."?secret=".$privatekey."&response=".$_POST['g-recaptcha-response']."&remoteip=".$_SERVER['REMOTE_ADDR']);
    $data = json_decode($response);

    try
    {
    $emailText = "You have new message from contact form\n=============================\n";

    foreach ($_POST as $key => $value) {
    //verifcation passed
    if (isset($fields[$key])) {
        $emailText .= "$fields[$key]: $value\n";
    }
}

    mail($sendTo, $subject, $emailText, "From: " . $from);
    $responseArray = $okMessage;
   }
   else
   {
   //verification failed
   $responseArray = $errorMessage;
   }

    if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    $encoded = json_encode($responseArray);

    header('Content-Type: application/json');

    echo $encoded;
    }
    else {
    echo $responseArray['message'];
    }

Answer 1

将下面的代码合并到 contact.php 页面

    $url = 'https://www.google.com/recaptcha/api/siteverify';
    $privatekey = ""; //whatever your PRIVATE key is

    $response = file_get_contents($url."?secret=".$privatekey."&response=".$_POST['g-recaptcha-response']."&remoteip=".$_SERVER['REMOTE_ADDR']);

    $data = json_decode($response);

    if (isset($data->success) AND $data->success==true) {
   //verification succeeded
    $responseArray = $okMessage;
   }
   else
   {
   //verification failed
   $responseArray = $errorMessage;
   }

echo $responseArray;

Answer 2

为什么不在表单标签上使用 javascript 验证

<div class="g-recaptcha" id="rcaptcha"  data-sitekey="xxxx"></div>
     `      <form action="" method="post" onSubmit="return get_action()"> ` <span id="captcha"  style="color:red" /></span></div>

   <script src='https://www.google.com/recaptcha/api.js'></script>
  <script>

  function get_action(form) 
    {
    var v = grecaptcha.getResponse();
if(v.length == 0)
{
    document.getElementById('captcha').innerHTML="You can't leave Captcha Code empty";
    return false;
}
else
{
    document.getElementById('captcha').innerHTML="Captcha completed";
    return true; 
   }
   }

Answer 3

我已经按照我的方式更新了您的全部代码（我运行一个社交网站）。

        <?php

    $sendTo = "me@me.com";
    $subject = "New message from contact form";
    $headers .= 'From: <example@example.com>' . "\r\n";

    $name = @$_POST['name'];
    $phone = @$_POST['phone'];
    $email = @$_POST['email'];
    $message = @$_POST['message'];

    $okMessage = 'Thank you for your message. One of the team will be in touch as soon as possible.';
    $errorMessage = 'There was an error while submitting the form. Please try again later';
    $url = 'https://www.google.com/recaptcha/api/siteverify';
    $privatekey = "xxxxxxxxx"; //whatever your PRIVATE key is
    $response = file_get_contents($url."?secret=".$privatekey."&response=".$_POST['g-recaptcha-response']."&remoteip=".$_SERVER['REMOTE_ADDR']);
    $data = json_decode($response);

    $emailText = "Name: $name \n Phone: $phone \n Email: $email \n Message: $message";

if (isset($data->success) AND $data->success==true) {

    mail($sendTo, $subject, $emailText, $headers);
    $responseArray = $okMessage;
   }
   else
   {
   //verification failed
   $responseArray = $errorMessage;
   }

    if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    $encoded = json_encode($responseArray);

    header('Content-Type: application/json');

    echo $encoded;
    }
    else {
    echo $responseArray;
    }

将 reCaptcha 集成到现有 contact.php

Integrating reCaptcha into existing contact.php

php

recaptcha