Подписаться на комментарии для гостей?

if ($config['allow_subscribe'] AND $user_group[$member_id['user_group']]['allow_subscribe']) $allow_subscribe = true; else $allow_subscribe = false;

if ($config['allow_subscribe'] AND $user_group[$member_id['user_group']]['allow_subscribe'] OR !$is_logged) $allow_subscribe = true; else $allow_subscribe = false;

if ( $config['mail_comments'] OR $config['allow_subscribe'] ) {

$email = $mail;

if ($_POST['allow_subscribe'] AND $user_group[$member_id['user_group']]['allow_subscribe'] AND !$found_subscribe) {
                код пропущен
                .................
                код пропущен
            }

if ($_POST['allow_subscribe'] AND !$is_logged AND !$found_subscribe) {
                if(function_exists('openssl_random_pseudo_bytes')) {
                    $stronghash = md5(openssl_random_pseudo_bytes(15));
                } else $stronghash = md5(uniqid( mt_rand(), TRUE ));
                $salt = str_shuffle($stronghash);
                $s_hash = "";
                
                for($i = 0; $i < 10; $i ++) {
                    $s_hash .= $salt{mt_rand( 0, 31 )};
                }
                $s_hash = md5($s_hash);
                $db->query( "INSERT INTO " . PREFIX . "_subscribe (user_id, name, email, news_id, hash) values ('0', '$name', '$email', '$post_id', '$s_hash')" );
            }

if ($config['allow_subscribe'] AND $user_group[$member_id['user_group']]['allow_subscribe']) {

if ($config['allow_subscribe'] AND $user_group[$member_id['user_group']]['allow_subscribe'] OR !$is_logged) {