Passing Session Variables Through PHP Mail - php

Question

I'm having an issue passing $_SESSION variables through a multiple page form process using PHP mail. The emails are coming through fine, although they not displaying the variables.
My goal is to have users fill out forms on multiple pages, and have the data emailed back to me.
Page 1
<?php
session_start();
?>
<form method="post" action="submitpage.php">
<label>
<input type="radio" name="vehicle_type" value="car" checked />
<img class="img-responsive" src="img/vehicle2.png">
</label>
<label>
<input type="radio" name="vehicle_type" value="suv" />
<img class="img-responsive" src="img/vehicle2.png">
</label>
<label>
<input type="radio" name="vehicle_type" value="van" />
<img class="img-responsive" src="img/vehicle2.png">
</label>
<label>
<input type="radio" name="vehicle_type" value="truck" />
<img class="img-responsive" src="img/vehicle2.png">
</label>
<label>
<input type="radio" name="vehicle_type" value="none" />
<img class="img-responsive" src="img/vehicle2.png">
</label>
</form>
Page 2
<?php
session_start();
$_SESSION['vehicle_type'] = $_POST['vehicle_type'];
?>
<form method="post" action="emailexample.php" id="submit-form">
<input type="Email" name="email">
<input type="submit" name="submit" value="Submit" id="submitbtn">
</form>
Page 3
<?php
session_start();
$to = 'myemail#gmail.com';
$subject = 'test ';
$message = "Your Vehicle Type is: " . $_POST['vehicle_type'] ."\r\n";
$headers = 'From: email#example.com' . "\r\n" .
mail($to, $subject, $message, $headers);
?>

Answer 1

On page 1 you should put submit button something like this
<input type="submit" name="submit" value="Submit" />
On page 3 you should change
$message = "Your Vehicle Type is: " . $_SESSION['vehicle_type'] ."\r\n";
and you're missing semicolon in $headers variable at the end. It should be
$headers = 'From: email#example.com' . "\r\n";

Answer 2

In page 3
use $_SESSION['vehicle_type'] instead of $_POST['vehicle_type']