How to get multi field form data in email body - php

Question

Complete newbie at PHP. help.
I have written a large "join the club" form with 15 fields. the first 10 fields are required. last 5 are optional.
Each field has ID and names. name="fname" name="lname", for each field. (see below)___
<!-- FORM STARTS HERE -->
<form id="appliform" name="applform" method="post"
action="joinformscripts/test11.php"
enctype="text/plain" >
<!-- php code still in progress. test memb.php --->
<label for="fname">*First Name:</label><br>
<input type="text" id="fname" name="fname" required><br>
<label for="lname">*Last Name:</label><br>
<input type="text" id="lname" name="lname" required><br>
<label for="bizname">*Business Name:</label><br>
<input type="text" id="bizname" name="biz" required><br>
<label for="bizadd">*Business Mailing Address:</label><br>
<input type="text" id="bizadd" name="bizadd" required> <br>
<label for="city">*City:</label><br>
<input type="text" id="city" name="city" required> <br>
<label for="state">*State:</label><br>
<input type="text" id="state" name="state" required> <br>
<label for="zip">Zip:</label><br>
<input type="text" id="zip" name="zip" required> <br>
<label for="bizphone">*Business Phone:</label><br>
<input type="text" id="bizphone" name="bizphone" required> <br>
<label for="celphone">Personal Phone:</label><br>
<input type="text" id="celphone" name="celphone"> <br>
<label for="email">*Email:</label><br>
<input type="email" id="email" name="email" required><br>
<hr>
<h5>Complete this information if you are also paying for an Associate Membership. </h5>
<label for="fname">Associate First Name:</label><br>
<input type="text" id="afname" name="afname"><br>
<label for="lname">Associate Last Name:</label><br>
<input type="text" id="alname" name="alname"><br>
<label for="bizphone">Associate Business Phone:</label><br>
<input type="text" id="abizphone" name="abizphone" > <br>
<label for="celphone">Associate Personal Phone:</label><br>
<input type="text" id="acelphone" name="acelphone"> <br>
<label for="aemail">Associate Email:</label><br>
<input type="aemail" id="aemail" name="aemail"><br>
<hr>
<p>test 11 # 6.00p</p>
<!-- SEND BUTTON Submit using secure POST DATA button
when sent, opens remit payment page (in script)-->
<input type="submit" value="submit application" ><br>
<input type="reset" value="clear form">
<br>
<br>
<p>Please remit payment on the next page.</p>
</form> <!-- END MEMBERSHIP FORM with script action -->
PHP script.
<?php
// test 11
// after submit, goes to Remit page for payment: yes. //
// receive email with content in body: NO //
$email_to = "membership#xxxx.org";
$email_from = "membership#xxxx.org";
$reply_to = $_POST["email"];
$headers = "submitted by: .$mailfrom .$fname .$lname ";
$email_subject = "New Member Application Form (phptest8) revised 6.00pm thursday dec 10";
$headers = "From: " . $email_from . "\n";
$headers .= "Reply-To: " . $reply_to . "\n";
// NOT CAPTURING form variables.
//This needs to send all the fields in the form on Join page.
if(isset($_POST['submit'])){
$to = "membership#efwba.org"; // this is your Email address
$from = $_POST['email']; // this is the sender's Email address
$first_name = $_POST['fname'];
$last_name = $_POST['lname'];
$subject = "Membership Form submission";
$message = $first_name . " " . $last_name . "
wrote the following:" . "\n\n" . $_POST['message'];
$message2 = "my information " . $fname . "\n\n" . $fname . $lname . $biz . $bizadd . $city . $state . $zip . $bizphone . $celphone . $email . $afname . $alname . $abizphone . $acelphone. $aemail. $_POST['message'];
}
//Send the email. If the email is sent we will go to a REMIT PAYMENT page, if there is an error we will display a brief message.
ini_set("sendmail_from", $email_from);
$sent = mail($email_to, $email_subject, $email_body, $headers, $email_from);
if ($sent)
{
header("Location:/joinformscripts/thank-you-for-joining.html");
} else {
echo "There has been an error submitting your application. Please go back one page to verify all data has been entered correctly.";
}
// Function to validate against any email injection attempts
function IsInjected($str)
{
___
The host server -goDaddy, Cpanel- processes the php file and sends the email to the "Membership#" account.
After the form submits, it redirects to the Payment page, that part works!
However, I am NOT getting the field data inside the body of the email.
I see the starter line, but not what the applicant entered for contact info.
I want the body/ data to be a simple format, so I can copy it all and drop into a spreadsheet (for club mail merge printing)
It does not need to show the data labels.
I want to see this data in the email body:
"I want to join your organization!"
fname lname
biz
bizaddress
city state zip
bizphone
celphone
bizemail
QUESTION: what is the simplest method to capture each field into email_body?
Thank you!