我的PHP文件没有将值从网站传递到我的电子邮件。

index.html中的表单代码块：

<!--Contact Form-->

<form id="contact" action="mail.php" method="post" enctype="text/plain">

<input name="name" placeholder="Your name" type="text" tabindex="1" required autofocus>

<input name="email" placeholder="Your Email Address" type="email" tabindex="2" required>

<input name="contact" placeholder="Your Phone Number" type="tel" tabindex="3" required>

<textarea name="message" placeholder="Your Message...." tabindex="4" required></textarea><br>

<input id="submit" name="submit" type="submit" value="Submit"/>
<input id="reset" name="reset" type="reset" value="Reset">

CSS：

#contact input[type="text"],
#contact input[type="email"],
#contact input[type="tel"],
#contact textarea {
  width:75%;
  box-shadow:inset 0 1px 2px #DDD, 0 1px 0 #FFF;
  -webkit-box-shadow:inset 0 1px 2px #DDD, 0 1px 0 #FFF;
  -moz-box-shadow:inset 0 1px 2px #DDD, 0 1px 0 #FFF;
  border:1px solid #CCC;
  background:#FFF;
  border-radius:5px;
  padding:10px 10px;
  font-family:Arial, Helvetica, sans-serif;
  font-size:14px;
}
fieldset {
border:0;
}
#contact button [type="submit"],
#contact button [type="reset"]
{
width:100%;
height:AUTO;
}

PHP文件：

<?php
//collect data
$name = $_POST['name'];//Your Name
$email = $_POST['email'];//Email ID
$contact = $_POST['contact'];//Contact number
$message = $_POST['message'];//Message

//declare data
$to = "vertika7march@gmail.com";//Recipient Email ID
$subject = "Message from center2enter.com";//Inbox Subject
$body = "Message from-\n Name: $name\n Email: $email\n Contact: $contact\n Message: $message";
mail($to,$subject,$body);//Mail sent

//redirect
echo "<div align='center' style ='font:30px Arial,Helvetica,sans-serif; color:blue'>Thank you for your message. I will be in touch with you very soon!</div>";//Thank you Screen
?>

邮件中的输出：

“来自-

姓名：

电子邮件：

联系人：

消息:'

[未获得在我的网站'center2enter.com'上提交的变量的值]

我试过：

>