表单代码和PHP

感谢您回答我之前的查询，但我又被叫停了，因为我不知道我遗漏了什么或哪里错了。这是我制作的HTML表单：

  <div class="container">
   <span class="reg"> <h1>Register Now</h1> </span>
    <div class="row">
      <div class="conent-part">
       <div class="form-body">
        <div class="fome-body">
          <form id="form" action="/sendform.php" method="post">
            <div class="row">
                <div class="form-part">
                    <div class="form-group">
                        <input type="text" class="form-control" name="name" id="name" placeholder="Your Name">
                    </div>
                    <div class="form-group">
                        <input type="email" class="form-control" name="email" id="email" placeholder="Your Email Address">
                    </div>
                    <div class="form-group">
                        <input type="text" class="form-control" name="nname" id="nname" placeholder="Nominee's Name">
                    </div>
                    <div class="form-group">
                        <input type="email" class="form-control" name="nemail" id="nemail" placeholder="Nominee's Email">
                    </div>
                </div>
                <div class="form-part">
                    <div class="form-group">
                        <input type="text" class="form-control" name="nsport" id="nsport" placeholder="Nominee's Sport">
                    </div>
                    <div class="form-group">
                        <textarea class="form-control" rows="3" name="accomplishments" id="accomplishments" placeholder="Accomplishments"></textarea>
                    </div>
                </div>
            </div>
            <div class="custom_btn">
                    <button type="submit" name="submit" class="btn btn-primary">Submit</button>
                </div>
          </form>
        </div>
      </div>
    </div>
  </div>
</div>

这是我刚刚制作的sendform.php代码，但它不会发布，它只是转到sendform.php的空白页。

<?php
    $name = $_POST['name'];
    $email = $_POST['email'];
    $nname = $_POST['nname'];
    $nemail = $_POST['nemail'];
    $nsport = $_POST['nsport'];
    $message = $_POST['accomplishments'];
    $from = $from = $email;
    $to = 'tempbiz@mail-central.com'; 
    $subject = 'Athlete of the Week - Nomination';
    $body = "From: $name'n Email: $email'n Nominee's Name: $nname'n Nominee's Email: $nemail'n Nominee's Nominee's Sport: $nsport'n Accomplishments:'n $accomplishments";
?>
<?php
if ($_POST['submit']) {
    if (mail ($to, $subject, $body, $from)) { 
        echo '<p>Your Nomination has been Successfully Sent!</p>';
    } else { 
        echo '<p>Oops! An error occurred. Try sending your Nomination again.</p>'; 
    }
}
?>