PHP Mail不发送邮件？ [重复]

Question

This question already has an answer here:

• PHP mail function doesn't complete sending of e-mail 27 answers

My php script doesnt send a mail. What's wrong? Do i need headers or other things? Is mail not supported?

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My index.php

       <!-- Form -->
    <form action="apply-process.php" method="post" name="apply">
  <div class="row">
    <div class="six columns">
      <label>Your first name</label>
      <input class="u-full-width" type="text" placeholder="John" name="first_name">
    </div>
    <div class="six columns">
      <label>Your last name</label>
      <input class="u-full-width" type="text" placeholder="Doe" name="last_name">
    </div>
  </div>
  <div class="row">
    <div class="six columns">
      <label>Your email</label>
      <input class="u-full-width" type="text" placeholder="[e-mail]" name="email">
    </div>
    <div class="six columns">
      <label>Memberschip</label>
      <select name="memberschip" class="u-full-width" name="membership">
        <option value="Option 1">Normal</option>
        <option value="Option 2">Donator</option>
        <option value="Option 3">eSport member</option>
      </select>
    </div>
  </div>

  <label>Message</label>
  <textarea class="u-full-width" placeholder="Tell us something about yourself and your hobbies. Remember to include your ingame name and Skype name." name="text"></textarea>

  <input class="button-primary" type="submit" value="Submit">
</form>

My process page:

<?php

$first_name = $_POST['first_name'];
$last_name = $_POST['last_name'];
$email = $_POST['email'];
$text = $_POST['text'];
$membership = $_POST['membership'];
$to = "[e-mail]";
$subject = "New apply from $first_name";

mail ($to, $subject, "From: " . $first_name . $last_name, "Email: " . $email, "Membership: " . $membership, "Message: " . $text);

header('Location: ../index.html');
?>

Thanks, Juul

</div>

Answer 1

The mail function, http://php.net/manual/en/function.mail.php, takes 4 parameters; to, subject, body, and headers.

mail ($to, 
$subject, 
"From: " . $first_name . $last_name, 
"Email: " . $email, 
"Membership: " . $membership, 
"Message: " . $text);

You are passing it 6 parameters. Headers are not required. I don't know what you are trying to send but your subject, body, and headers are in the wrong places.

Maybe you want...

mail ($to, 
    $subject, 
    "Message: " . $text, 
    "From: $first_name $last_name <$email>");