php mail（）不通过xampp发送电子邮件

我正在尝试创建一个html表单，可以将电子邮件发送到我的电子邮件地址，下面是我的html代码

<form method="post" name="myemailform" action="form-to-email.php">
<p>
    <label for='name'>Enter Name: </label><br>
    <input type="text" name="name">
</p>
<p>
    <label for='email'>Enter Email Address:</label><br>
    <input type="text" name="email">
</p>
<p>
    <label for='message'>Enter Message:</label> <br>
    <textarea name="message"></textarea>
</p>
<input type="submit" name='submit' value="submit">

输入名称：



输入电子邮件地址：



输入消息：

var frmvalidator=新的验证器（“myemailform”）；
frmvalidator.addValidation（“名称”、“请求”、“请提供您的姓名”）；
frmvalidator.addValidation（“电子邮件”、“请求”、“请提供您的电子邮件”）；
frmvalidator.addValidation（“电子邮件”，“电子邮件”，“请输入有效电子邮件
地址);；

这是我的php代码

<?php
if(!isset($_POST['submit']))
{
    echo "error; you need to submit the form!";
}
$name = $_POST['name'];
$visitor_email = $_POST['email'];
$message = $_POST['message'];
$subject = $_POST['subject'];
if(empty($name)||empty($visitor_email))
{
    echo "Name and email are mandatory!";
    exit;
}
if(IsInjected($visitor_email))
{
    echo "Bad email value!";
    exit;
}
$email_from = &$visitor_email;
$email_subject = &$subject;
$email_body = "You have received a new message from the user $name.\n".
"Here is the message:\n $message".

$to = "a@gmail.com";//<== 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: thank-you.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;
    }
}
?> 

然而，当我在xampp中启动apache时，它没有发送电子邮件，我是否必须在real server中运行它，或者我的php代码有问题

---

任何类型的帮助都将不胜感激

这是在Windows系统上吗Xampp在本地主机中，我的意思是，您应该为SMPT打开一些端口；）一些合理的代码缩进将是一个好主意。它帮助我们阅读代码，更重要的是，它将帮助您为自己的利益调试代码。您可能会在几周/几个月内被要求修改此代码，最终您会感谢我。1）windows没有邮件服务器2）

mail（）

不发送邮件3）all

mail（）

是否将邮件传递到您可能没有的邮件服务器。因此，没有什么可以发送的邮件这是在mac系统上的，谢谢

<?php
if(!isset($_POST['submit']))
{
    echo "error; you need to submit the form!";
}
$name = $_POST['name'];
$visitor_email = $_POST['email'];
$message = $_POST['message'];
$subject = $_POST['subject'];
if(empty($name)||empty($visitor_email))
{
    echo "Name and email are mandatory!";
    exit;
}
if(IsInjected($visitor_email))
{
    echo "Bad email value!";
    exit;
}
$email_from = &$visitor_email;
$email_subject = &$subject;
$email_body = "You have received a new message from the user $name.\n".
"Here is the message:\n $message".

$to = "a@gmail.com";//<== 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: thank-you.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;
    }
}
?>