联系人表单的发件人字段中的电子邮件地址在电子邮件标题中未显示为“”；来自“； - email address in from field on contact form not showing in email header as "from"

email address in from field on contact form not showing in email header as "from"

iv在表单代码中添加了标题字段，但当我收到电子邮件时，电子邮件中的"发件人"字段显示的是一个乱码，而不是发送邮件的人的电子邮件地址。这是我的消息处理代码：

<?php session_start();
if(isset($_POST['Submit'])) {   if( $_SESSION['chapcha_code'] == $_POST['chapcha_code'] && !empty($_SESSION['chapcha_code'] ) ) {
$youremail = 'I removed my address for privacy on stack overflow';
$fromsubject = 'A message from your website';
$title = $_POST['title'];
$fname = $_POST['fname'];
$lname = $_POST['lname'];
$mail = $_POST['mail'];
$address = $_POST['address']; 
$city = $_POST['city']; 
$zip = $_POST['zip']; 
$country = $_POST['country']; 
$phone = $_POST['phone']; 
$subject = $_POST['subject']; 
$message = $_POST['message']; 
$headers = "From: $nome <$mail>'r'n";
    $to = $youremail; 
    $mailsubject = 'Message received from'.$fromsubject.' Contact Page';
    $body = $fromsubject.'
    The person that contacted you is  '.$fname.' '.$lname.'
     Address: '.$address.'
    '.$city.', '.$zip.', '.$country.'
     Phone Number: '.$phone.'
     E-mail: '.$mail.'
     Subject: '.$subject.'
     Message: 
     '.$message.'
    |---------END MESSAGE----------|'; 
echo "Thank you for your feedback. I will contact you shortly if needed.<br/>Go to <a href='/index.php'>Home Page</a>"; 
                                mail($to, $subject, $body);
        unset($_SESSION['chapcha_code']);
   } else {
        echo 'Sorry, you have provided an invalid security code';
   }
 } else { 
echo "You must write a message. </br> Please go to <a href='/contact.php'>Contact Page</a>"; 
}
?>

您声明了您的^From:头`here:

$headers = "From: $nome <$mail>'r'n";

但当您调用mail() 时，它不会被使用

mail($to, $subject, $body);

您需要传递$headers作为第四个参数。否则标头将不会生效

mail($to, $subject, $body, $headers);

您没有在代码中的任何位置声明$nome，也没有在：中声明$mail

$headers = "From: $nome <$mail>'r'n";

除此之外，正如这条评论所提到的，您没有将标头传递到mail函数中。请参阅邮件功能的第四个参数。