PHP电子邮件表单不发送电子邮件[重复]

Question

This question already has an answer here:

• PHP mail function doesn't complete sending of e-mail 27 answers
• HTML Form with Sendemail 2 answers

I have only dabbled in PHP a little, I am trying to remember what I did last year. I am having trouble getting this to work - the user is redirected to index.php but then nothing happens. No email is recieved and no verification 'email sent/not sent' etc.

I am sure it is probably a silly mistake.

Any help would be appreciated.

contact.html

<form method="post" action="index.php">


<label>Name</label>
<input name="name" placeholder="Type Here">

<label>Email</label>
<input name="email" type="email" placeholder="Type Here">

<label>Message</label>
<textarea name="message" placeholder="Type Here"></textarea>

<label>*What is 2+2? (Anti-spam)</label>
    <input name="human" placeholder="Type Here">

<input id="submit" name="submit" type="submit" value="Submit">

</form>

index.php

<?php
$name = $_POST['name'];
$email = $_POST['email'];
$message = $_POST['message'];
$from = $_POST['email']; // GET EMAIL ADDRESS FROM FORM
$to = '[e-mail]'; 
$subject = 'Website enquiry from' .$name;
$body = "From: $name
 E-Mail: $email
 Message:
 $message";

$headers = "From: Annie<$from>
Return-path: $from" . "
";
$headers .= "Content-type:text/text;charset=ISO-8859-1"; 

?>
<?php
if ($_POST['submit'] && ($_POST['human'] == '4') {
/* Anything that goes in here is only performed if the form is submitted */
if (mail ($to, $subject, $body, $headers, $from)) { 
    echo '<p>Your message has been sent!</p>';
} else { 
    echo '<p>Something went wrong, go back and try again!</p>'; 
}
}
?>

</div>

Answer 1

I'm posting this as a community wiki; I don't feel any rep should come of this, nor do I want rep.

mail() uses 4 arguments, not 5.

• http://php.net/manual/en/function.mail.php

There is a 5th but it doesn't do what you're expecting your 5th to do.

So remove the , $from from this:

if (mail ($to, $subject, $body, $headers, $from))
                                        ^^^^^^^

The From: belongs in the header and expects an email address.

Example from the manual:

<?php
$to      = '[e-mail]';
$subject = 'the subject';
$message = 'hello';
$headers = 'From: [e-mail]' . "
" .
    'Reply-To: [e-mail]' . "
" .
    'X-Mailer: PHP/' . phpversion();

mail($to, $subject, $message, $headers);
?>