ERROR - Using $this when not in object context

I am getting a PHP error. I beleive the script I am using was designed for PHP 4??? But, I need to get past this error, as I am on PHP 5. Any help on a simple rewrite would be greatly appreciated!!! Here is the script and the error:

ERROR - Using $this when not in object context. (Very last line of script)..

SCRIPT:
define('WORKING',true);
define('LOGIN',true);
$pps_root_path = './';
$site_type = array(0=>1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1); //all

require($pps_root_path . 'extension.inc');
require($pps_root_path . 'common.inc.' . $phpEx);


switch ($_GET['act']) {
case 'login':
if (!empty($_POST['username'])) {
$sql = "SELECT UserStatus,ValidIP,UPreferedLang,UPreferedTpl FROM " . USER_TABLE . " " .
"WHERE UUsername='" . $_POST['username'] . "' AND UPassword='" . $_POST['password'] . "'";
$result = dbQueryCheck($sql,'standart');
$row = $db->sql_fetchrow($result);

if (!is_a($msg, 'MessageClass')) {
$msg = new MessageClass();
}

//Check ValidIP
if (!validateIP(get_ip(),$row['ValidIP']) AND trim($row['ValidIP']) != "") {
$msg->msg_error($lang['MissingRights'],"","",__FILE__,__LINE__,$lang['MissingRightsTitle'],'standart');
}

//Logging
if ($ppsSettings['log_cbx_logins'] == 1) {
doLog(get_ip(),0,"User: " . $_POST['username'] . ", Password: " . $_POST['password'],1);
}

switch ($row['UserStatus']) {
case 'isAdmin':
$tmp_redirect = "admin";
break;
case 'isModerator':
$tmp_redirect = "admin";
break;
case 'isAdv':
$tmp_redirect = "adv";
break;
case 'isAff':
$tmp_redirect = "aff";
break;
case 'isWaitingAdv':
$msg->msg_error($lang['LoginWaiting'],"","",__FILE__,__LINE__,$lang['LoginWaitingTitle'],'standart');
break;
case 'isWaitingAff':
$msg->msg_error($lang['LoginWaiting'],"","",__FILE__,__LINE__,$lang['LoginWaitingTitle'],'standart');
break;
case 'isInActive':
$msg->msg_error($lang['LoginInactive'],"","",__FILE__,__LINE__,$lang['LoginInactiveTitle'],'standart');
break;
default:
$msg->msg_error($lang['LoginError'],"","",__FILE__,__LINE__,$lang['LoginErrorTitle'],'standart');
}

if (empty($_GET['redirect'])) {
$_GET['redirect'] = $tmp_redirect . "/";
}

//write cookie
$userinfo = array();
$userinfo['username'] = $_POST['username'];
$userinfo['password'] = $_POST['password'];

$designinfo = array();
$designinfo['Language'] = $row['UPreferedLang'];
$designinfo['Template'] = $row['UPreferedTpl'];

if (writeCookie($ppsSettings['gen_cookie_name'],$userinfo,$ppsSettings['gen_cookieexpire'],1)) {
if (!writeCookie($ppsSettings['gen_cookie_name'] . "_design",$designinfo,$ppsSettings['gen_cookieexpire'],1)) {
//
}
$msg->msg_success($lang['LoginSuccess'],"","",__FILE__,__LINE__,$lang['LoginSuccessTitle'],'standart', $_GET['redirect'] . "?" . $urlArgs);
}
else {
$msg->msg_error($lang['LoginError'],"","",__FILE__,__LINE__,$lang['LoginErrorTitle'],'standart');
}
}
else {
header("Location: " . $PHP_SELF . "?" . $urlArgs);
exit;
}
break;
case 'resend':
//Resend form
$smarty->template_dir = $ppsSettings['currentTemplatePath'];
$smarty->assign('PPSName',$ppsSettings['gen_PPSName']);
$smarty->assign('username',$_GET['username']);
$smarty->assign('stylesheet',file_get_contents($ppsSettings['currentTemplatePath'] . 'style.css'));
$smarty->assign('action',$PHP_SELF . "?act=doresend" . $urlArgs);

//Output data
displayOutput($smarty->fetch("sendpassword.tpl"),$ppsSettings['gen_GZIP_level']);
break;
case 'doresend':
$sql = "SELECT UEmail AS email, UserID, UUsername AS username, UPassword AS password, UFirstName AS firstname, ULastName AS lastname " .
" FROM " . USER_TABLE . " WHERE UUsername='" . $_POST['username'] . "'";
$result = dbQueryCheck($sql,'standart');
$row = $db->sql_fetchrow($result);

$row['IP'] = get_ip();
$row['CurrentUserID'] = 0;

if (!is_a($msg, 'MessageClass')) {
$msg = new MessageClass();
}

if (!empty($row['email'])) {
//send email
if (sendEmail('resend_password',$row,$ppsSettings['currentLanguage'])) {
$msg->msg_success($lang['SendPasswordSuccess'],"","",__FILE__,__LINE__,$lang['SendPasswordSuccessTitle'],'standart', $PHP_SELF . "?" . $urlArgs);
}
else {
$msg->msg_error($lang['SendPasswordError'],"","",__FILE__,__LINE__,$lang['SendPasswordErrorTitle'],'standart');
}
}
else {
$msg->msg_error($lang['UnknownUsername'],"","",__FILE__,__LINE__,$lang['UnknownUsernameTitle'],'standart');
}
break;
default:
//Login form
$smarty->template_dir = $ppsSettings['currentTemplatePath'];
$smarty->assign('PPSName',$ppsSettings['gen_PPSName']);
$smarty->assign('username',$_GET['username']);
$smarty->assign('stylesheet',file_get_contents($ppsSettings['currentTemplatePath'] . 'style.css'));
$smarty->assign('U_SEND_PASSWORD',$PHP_SELF . "?act=resend" . $urlArgs);
$smarty->assign('action',$PHP_SELF . "?act=login" . $urlArgs);

//Output data
displayOutput($smarty->fetch("login.tpl"),$this->ppsSettings['gen_GZIP_level']);
}


?>

 

I got it...
Needed to change last line from this:

displayOutput($smarty->fetch("login.tpl"),$this->ppsSettings['gen_GZIP_level']);

to this:

displayOutput($smarty->fetch("login.tpl"),$ppsSettings['gen_GZIP_level']);

 

This message comes up when you try to use $this when you aren't using a Class.

Glad you sorted it