使用PHP文件的HTML聯系人/郵件表單的結果奇怪

Question

我在從電子郵件表單中正確獲取電子郵件中的數據時遇到問題。 它對電子郵件做了一些奇怪的事情。

原始表格訊息：

Enter Name: Fake Name
Enter Email Address: fake.name@doesnotexist.com
Enter Message: Email test number 4(four).

Submit
_____________________________________________

我收到的電子郵件：

From: <fake.name@doesnotexist.com>
Subject: <New Form submission>
Reply to: <warnerheston@sungraffix.net>
To: Me <web289portfolio@sungraffix.net>
_____________________________________________

You have received a new message from the user Fake Name.
Here is the message:
Email test number 4(four).web289portfolio@sungraffix.net
_____________________________________________

郵件正文中的電子郵件為“（four）.web289portfolio @ sungraffix.net”，並帶有下划線/超鏈接...奇怪！

消息體中根本沒有任何電子郵件地址。 用戶未在消息末尾鍵入電子郵件地址。 有人說，PHP代碼正在將目的地電子郵件地址拖放到消息正文中，並在用戶發送消息時附加用戶消息的最后一個“單詞”。

有人可以告訴我我在做什么錯嗎？

<?php
if(!isset($_POST['submit']))
{
    //This page should not be accessed directly. Need to submit the form.
    echo "error; you need to submit the form!";
}
$name = $_POST['name'];
$visitor_email = $_POST['email'];
$message = $_POST['message'];



//Validate first
if(empty($name)||empty($visitor_email)||empty($message)) 
{
    header('Location: contact-form-incomplete.html');
    exit;
}

if(IsInjected($visitor_email))
{
    echo "Bad email value!";
    exit;
}

$email_from = $_POST['email']; //<== update the email address
$email_subject = "New Form submission";
$email_body = "You have received a new message from the user $name.\n".
    "Here is the message:\n $message".

$to = "web289portfolio@sungraffix.net";//<== update the email address
$headers = "From: $email_from \r\n";
$headers .= "Reply-To: $visitor_email \r\n";
//Send the email!
mail($to,$email_subject,$email_body,$headers);
//done. redirect to thank-you page.
header('Location: contact-thankyou.html');


// Function to validate against any email injection attempts
function IsInjected($str)
{
  $injections = array('(\n+)',
              '(\r+)',
              '(\t+)',
              '(%0A+)',
              '(%0D+)',
              '(%08+)',
              '(%09+)'
              );
  $inject = join('|', $injections);
  $inject = "/$inject/i";
  if(preg_match($inject,$str))
    {
    return true;
  }
  else
    {
    return false;
  }
}

?> 

這是HTML表單：

<form method="post" name="myemailform" action="form-to-email.php">
        <p>
            <label for='name'><span class='form'>Enter Name:</span></label><br>
            <input type="text" name="name" size="36">
        </p>
        <p>
            <label for='email'><span class='form'>Enter Email Address:</span></label><br>
            <input type="email" name="email" size="36">
        </p>
        <p>
            <label for='message'><span class='form'>Enter Message:</span></label> <br>
            <textarea name="message" cols='48' rows='9' maxlength='300'></textarea>
        </p>
    <input type="submit" name='submit' value="submit">&nbsp;&nbsp;&nbsp;<input type="reset">
</form>

Answer 1

仔細查看$email_body上的代碼，您實際上將$email_body與$to串聯在一起。 串聯. $email_body應為; 。