php code to send checkbox form results to email

PHP Snippet 1:

$servicetype = implode(",", $_POST['servicetype']);
$mail->body .= $servicetype."\r\n";

PHP Snippet 2:

$servicetype = $_POST['servicetype'];
if(isset($servicetype)) {
    $mail->body .= "servicetype: \r\n";

    foreach ($servicetype as $selected) {
        $mail->body .= " > ".$selected."\r\n";      
    }
}