the show starts kinda

libs/auth.php

@@ -2,7 +2,7 @@
     require("../libs/test_secret.php");
     
     function auth($token) {
-        if (is_null($token)) return '!guest';
+        if (is_null($token)) return null;
 
         global $db;
 
@@ -10,7 +10,7 @@
         $stmt->execute([$token]);
         
         $result = $stmt->fetch(PDO::FETCH_ASSOC);
-        if (!$result) return '!guest';
+        if (!$result) return null;
         
         $username = $result['username'];
         
@@ -18,7 +18,7 @@
         $stmt->execute([$username]);
         
         $result = $stmt->fetch(PDO::FETCH_ASSOC);
-        if (!$result) return '!guest';
+        if (!$result) return  null;
         
         return $username;
     }