Hide statistics from users

if($user_id!=1) {
//disable menu item from the top menu
$l_menuStats='';
}
else $l_menuStats="<a href=\"{$main_url}/{$indexphp}action=stats\">{$l_menu[3]}</a> {$l_sepr} ";
if($user_id!=1 and $action=='stats') {
//redirect to the main website, if someone except admin tries to view that page
header("Location: {$main_url}/{$startIndex}");
exit;
}

if($user_id==0) {
//disable menu item from the top menu
$l_menuStats='';
}
else $l_menuStats="<a href=\"{$main_url}/{$indexphp}action=stats\">{$l_menu[3]}</a> {$l_sepr} ";
if($user_id==0 and $action=='stats') {
//redirect to the main website, if someone except admin tries to view that page
header("Location: {$main_url}/{$startIndex}");
exit;
}