似乎无法让我的 php 代码正常工作 [重复]

Question

<?php

if(isset($_POST['email'])) {
    $user_email = $_POST['email'];          // this is just grabbed form the user email field
    $email_to   = "btndeals@btn.deals";     // where is the email going?
    $fullname   = $_POST['fname'];          // get the full name from hte $_POST data
    $subject    = $_POST ['subject'];       // what is the email subject?
    $message    = $_POST['message'];        // get the message from the $_POST data

    // ...geting data
    if(mail($email_to, $fname, $subject, $message, "From:" . $email)) {
        //the email got sent!!!
        //you can echo html out here :)
        echo "<strong>Sucessfully sent</strong>";
    } else {
        //email didn't work!
        //you can out html here :)
        echo "Error";
    }
}

?>

在服务器上运行代码时，它不断出现错误，有人可以帮助我吗，我是 php 新手，所以我还在学习如何使用它。

Answer 1

您使用了错误的mail 函数。第二个和第三个参数应该分别是主题和消息。第四个（附加标头）和第五个（附加参数）参数是可选的。这是您需要的代码：

    if(isset($_POST['email'])) {
        $user_email = $_POST['email'];          //this is just grabbed form the user email field
        $email_to   = "btndeals@btn.deals"; //where is the email going?
        $fullname   = $_POST['fname'];         // get the full name from hte $_POST data
        $subject    = $_POST ['subject'];     //what is the email subject?
        $message    = $_POST['message'];        //get the message from the $_POST data

        $headers = "From:  $fullname <$user_email>";

        // ...geting data
        if(mail($email_to, $subject, $message, $headers)){
            //the email got sent!!!
            //you can echo html out here :)
            echo "<strong>Sucessfully sent</strong>";
        }
        else {
            //email didn't work!
            //you can out html here :)
            echo "Error";
        }
    }

如果这仍然不起作用，请发布您收到的错误消息。另请记住，您需要验证 $_POST['email'] 参数以确保其有效。

Answer 2

这是我测试过的。问题是发送，只需制作标题或不发送标题：-

       <?php
         if(isset($_POST['email'])) {
        $user_email = $user_email = $_POST['email']; ;          //this is just grabbed form the user email field
        $email_to   = "btndeals@btn.deals"; //where is the email going?
        $fullname   = $_POST['fname']; ;         // get the full name from hte $_POST data
        $subject    = $_POST ['subject']; ;     //what is the email subject?
        $message    = $_POST['message'];        //get the message from the $_POST data

        // ...geting data
        if(mail($email_to,$fullname, $subject, $message, $email)){
            //the email got sent!!!
            //you can echo html out here :)
            echo "<strong>Sucessfully sent</strong>";
        }
        else {
            //email didn't work!
            //you can out html here :)
            echo "Error";
        }
   }