Q:

Checkbox Send Multiple Options in Form

Having an issue with receiving multiple options.
I have a form and I have just implemented a checkbox into my html:
<input type="checkbox" name="bookingoptions" value="1">  
<input type="checkbox" name="bookingoptions" value="2">          
<input type="checkbox" name="bookingoptions" value="3">

At the moment the form uses send_booking_email.php.
<form id="booking-form" form name="bookingform" method="post" action="send_booking_email.php">

Within send_booking_email.php:
<?php

if(isset($_POST['email'])) {

    $email_to = "test@test.com";

    // validation expected data exists

    if(!isset($_POST['bookingoptions'])) {   

    }

    $bookingoptions = $_POST['bookingoptions']; // required

    $email_message .= "Booking Options:".clean_string($bookingoptions)."\n";

// create email headers

$headers = 'From: '.$email_from."\r\n".

'Reply-To: '.$email_from."\r\n" .

'X-Mailer: PHP/' . phpversion();

@mail($email_to, $email_subject, $email_message, $headers);  

?>

<?php

}

?>

This works fine when one option is selected, however I am unable to get it to send multiple selections.
I believe it is due to:
$email_message .= "Booking Options:".clean_string($bookingoptions)."\n";

Being only able to store one value? If so is there a way around this?
Thanks in advance!

A:

Rename this field to bookingoptions[] and you will get array for $_POST['bookingoptions']
<input type="checkbox" name="bookingoptions[]" value="1">  
<input type="checkbox" name="bookingoptions[]" value="2">          
<input type="checkbox" name="bookingoptions[]" value="3">

then implode array elements into string:
clean_string(implode(', ', $bookingoptions))

