PHP形式射击空白

Question

My PHP form is sending me blank emails.

I'm not sure where the issue is and wondered if anyone would be kind enough to help out.

Here's the HTML

                <div class="form">
            <form method="post" action="send_contact.php">
                <div class="form_row">
                <label>Your Name:</label>
                <input type="text" name="name" class="main_input" />
                </div>

                <div class="form_row">
                <label>Your Email:</label>
                <input type="text" name="email" class="main_input" />
                </div>
                <div class="form_row">
                <label>Type of Inquiry:</label>
                <input type="text" name="inquiry" class="main_input" />
                </div>  

                <div class="form_row">
                <label>Your Message:</label>
                <textarea name="message" class="main_textarea"></textarea>
                </div> 

                <div class="form_row">
                 <input type="submit" class="submit" value="Submit" >
                </div>
            </div>
            </form>
         </div>

Here's the PHP

<?php

$subject = "$inquiry";

$message = "$message";


$mail_from = "$email";

$header = "from: $name <$mail_from>";

// Enter your email address
$to ='[e-mail]';

$send_contact = mail($to,$subject,$message,$header);

// Check, if message sent to your email 
// display message "We've recived your information"
if($send_contact){
echo "We've recived your contact information";
}
else {
echo "ERROR";
}
?>

Literally, all I'm receiving is a blank email with no subject heading...

Answer 1

The following has been tested and working on my server. PHP Version 5.4

PHP (send_contact.php)

<?php
$name = $_POST['name'];
$subject = $_POST['inquiry'];
$message = $_POST['message'];
$mail_from = $_POST['email'];

$header = "From: $name <$mail_from>";

// Enter your email address
$to ='[e-mail]'; // change to your Email address

$send_contact = mail($to,$subject,$message,$header);

// Check, if message sent to your email 
// display message "We've received your information"
if($send_contact){
echo "We've received your contact information";
}
else {
echo "ERROR";
}
?>

HTML form:

    <div class="form">
<form method="post" action="send_contact.php">
    <div class="form_row">
    <label>Your Name:</label>
    <input type="text" name="name" class="main_input" />
    </div>

    <div class="form_row">
    <label>Your Email:</label>
    <input type="text" name="email" class="main_input" />
    </div>
    <div class="form_row">
    <label>Type of Inquiry:</label>
    <input type="text" name="inquiry" class="main_input" />
    </div>  

    <div class="form_row">
    <label>Your Message:</label>
    <textarea name="message" class="main_textarea"></textarea>
    </div> 

    <div class="form_row">
     <input type="submit" class="submit" value="Submit" >
    </div>
</div>
</form>
</div>