使用 PHPMailer 和 ReCaptcha V2 联系我们

如何解决使用 PHPMailer 和 ReCaptcha V2 联系我们

我想使用下面的联系我们表格；我测试了它，并发送了电子邮件。我无法解决的问题很少，因此我在开发站点上使用该表单。问题是：

当用户在表单为空时点击发送电子邮件按钮时，他不会收到需要 ReCaptcha 字段的提醒。
如果您填写表格并完全忽略 ReCaptcha 并点击发送按钮，您将被带到一个白页，并且不会发送电子邮件。显然，这是一个没有正确传达给用户的错误。
如果您正确填写表单并点击发送，则感谢页面的代码不会捕获您的消息。我尝试同时使用 GET 和 Post。例如：<?php echo $_POST["name"]?> 和 <?php echo $_GET["name"]?>。

我使用 PHP 8.0.3 版。如果有人能帮我解决这些问题，我将不胜感激。

Index.php

<!DOCTYPE HTML>
<html>
<head>
    <title>Test form to email</title>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <link rel="stylesheet" type="text/css" href="style.css">
    <script src="https://www.google.com/recaptcha/api.js" async defer></script>
</head>
<body>
<div class ="container">
<div class="col-lg-6 push-lg-3">
<h1> Contact us</h1>
<p>Fill out the below form to contact us</p>
    <form id= "contactus" method= "post" action= "send.php">
        <input type= "text" name = "name" class = "form-control" placeholder="your Name" required><br />
        <input type= "tel" name = "phone" class = "form-control" placeholder="your Phone" required><br />
        <input type= "email" name = "email" class = "form-control" placeholder="your email address" required><br />
        <textarea name="message" placeholder="your Message" class = "form-control" required></textarea><br />
        <div class="g-recaptcha" data-sitekey="ENTER_YOUR_SITE_KEY_HERE"></div><br />
        <button type= "submit" class = "btn btn-success">Send email</button>
    </form>
</div>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.0/jquery.min.js" integrity="sha512-894YE6QWD5I59HgZOGReFYm4dnWc1Qt5NtvYSaNcOP+u1T9qYdvdihz0PPSiiqn/+/3e7Jo4EaG7TubfWGUrMQ==" crossorigin="anonymous"></script>
<script src="./js/jquery.validate.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
<script>
$("#contactus").validate();
</script>
</body>
</html>

send.php

<?php
  /**
   * Contact us form for PHPMailer and ReCaptcha V2.
   * Built based on the following resources
   *    https://www.youtube.com/watch?v=3o0WXaXfUwI
   *    https://stackoverflow.com/questions/50253428/verify-recaptcha-v2-always-false 
   * This code is not yet final and requires refinement and help from the great community of stackoverflow.com
   */

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;

require 'vendor/phpmailer/phpmailer/src/PHPMailer.php'; //confirm this path
require 'vendor/phpmailer/phpmailer/src/SMTP.php';      //confirm this path
require 'vendor/phpmailer/phpmailer/src/Exception.php'; //confirm this path

//get the variables from the form 
$name = filter_var($_POST['name'],FILTER_SANITIZE_STRING);
$phone = filter_var($_POST['phone'],FILTER_SANITIZE_STRING);
$email = filter_var($_POST['email'],FILTER_SANITIZE_STRING);
$message = filter_var($_POST['message'],FILTER_SANITIZE_STRING);

//validations
if(empty($name)){
    header("location:index.php?nouser");
    exit();
}

if(empty($phone)){
    header("location:index.php?nophone");
    exit();
}

if(empty($email)){
    header("location:index.php?noemail");
    exit();
}

if(empty($message)){
    header("location:index.php?nomessage");
    exit();
}


//PHPMailer desfault validations
//Apply some basic validation and filtering to the email
if (array_key_exists('email',$_POST)) {
    $email = substr(strip_tags($_POST['email']),255);
    } else {
     $email = 'No email';
    }
    
//Apply some basic validation and filtering to the message
if (array_key_exists('message',$_POST)) {
//Limit length and strip HTML tags
    $message = substr(strip_tags($_POST['message']),16384);
    } else {
    $message = '';
    $msg = 'No message provided!';
    $err = true;
    }
    
//Apply some basic validation and filtering to the name
if (array_key_exists('name',$_POST)) {
//Limit length and strip HTML tags
$name = substr(strip_tags($_POST['name']),255);
    } else {
    $name = '';
    }

//Load Composer's autoloader
require 'vendor/autoload.php'; //confirm this path

$response   = isset($_POST["g-recaptcha-response"]) ? $_POST['g-recaptcha-response'] : null;
$privatekey = "ENTER_YOUR_PRIVATE_KEY"; //Enter your secret key here

$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,"https://www.google.com/recaptcha/api/siteverify");
curl_setopt($ch,CURLOPT_HEADER,0);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_POST,CURLOPT_POSTFIELDS,array(
    'secret' => $privatekey,'response' => $response,'remoteip' => $_SERVER['REMOTE_ADDR']
));

$resp = json_decode(curl_exec($ch));
curl_close($ch);

if ($resp->success) {  
  
//Instantiation and passing `true` enables exceptions
$mail = new PHPMailer(true);

try {
    //Server settings
    $mail->SMTPDebug = 0;                               //Enable verbose debug output
    $mail->isSMTP();                                    //Send using SMTP
    $mail->Host       = 'mail.example.com';             //Set the SMTP server to send through
    $mail->SMTPAuth   = true;                           //Enable SMTP authentication
    $mail->Username   = 'support@example.com';          //SMTP username
    $mail->Password   = 'PASSWORD';                     //SMTP password
    $mail->SMTPSecure = 'tls';                          //Enable TLS encryption; `PHPMailer::ENCRYPTION_SMTPS` encouraged
    $mail->Port       = 587;                            //TCP port to connect to,use 465 for `PHPMailer::ENCRYPTION_SMTPS` above

    //Sender
    $mail->setFrom('sender@example.com','Mr.sender'); 
    
    //Recipients 
    $mail->addAddress('recipient@example.com','Mr. Recipient');  //Add a recipient

    //Body content
    $body = "<p><strong>Hello</strong>,you have received an inquiry from " . $name . " the message is " . $message . " you can contact the sender by phone on " . $phone . " or by email on " . $email . "</p>";
    
    //Content
    $mail->isHTML(true);                                  //Set email format to HTML
    $mail->Subject = 'Website inquiry from ' . $name;
    $mail->email = 'The sender email ' . $email;    
    $mail->Body    = $body;
    $mail->AltBody = strip_tags($body);

    $mail->send();
    //echo 'Message has been sent'; // select this if you want to echo that the message has been snet
    header("location: thankyou.php"); // Select this if you want to redirect to a thank you page

} catch (Exception $e) {
    echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
}

}

?>

thankyou.php

<!DOCTYPE HTML> 
<html>
<head>
    <title>Thank you <?php echo $_GET['name'];?> </title>
    
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <link rel="stylesheet" type="text/css" href="style.css">
    
</head>

<body>

<div class="container mt-5 text-center">

<body>
    <h1>Thank You <?php echo $_GET['name'];?></h1>
    <p>We have received your inquiry. Here is the information you have submitted:</p>
    <ol>
        <li><em>Name:</em> <?php echo $_GET["name"]?></li>
        <li><em>Email:</em> <?php echo $_GET["email"]?></li>
        <li><em>Phone:</em> <?php echo $_GET["phone"]?></li>
        <li><em>Message:</em> <?php echo $_GET["message"]?></li>
    </ol>   
</body>

</div>

</body>
</html>

使用 PHPMailer 和 ReCaptcha V2 联系我们

如何解决使用 PHPMailer 和 ReCaptcha V2 联系我们

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