clear cache of Me when logout

app/App.php

@@ -64,6 +64,7 @@ class App
 
     public static function unsetU(): void
     {
+        Redis::unsetMe($_COOKIE['u'] ?? '');
         try {
             setcookie('u', null, [
                 'expires' => time() - 3600,
@@ -128,8 +129,8 @@ HTML,
         try {
             $u = static::getU();
             if ($u === null) return null;
-            $cachedMe = Redis::getCachedMe($_COOKIE['u']);
-            if ($cachedMe === null) return Redis::cacheMe($_COOKIE['u'], Auth::getMe($u));
+            $cachedMe = Redis::getCachedMe($_COOKIE['u'] ?? '');
+            if ($cachedMe === null) return Redis::cacheMe($_COOKIE['u'] ?? '', Auth::getMe($u));
             return $cachedMe;
         } catch (Exception) {
             error_log('Failed to getMe.');

app/Redis.php

@@ -51,4 +51,14 @@ class Redis
             return null;
         }
     }
+
+    public static function unsetMe(string $u): void
+    {
+        try {
+            $redis = static::connect();
+            $redis->unlink(static::getKey($u));
+        } catch (\RedisException $e) {
+            trigger_error($e->getMessage());
+        }
+    }
 }

webroot/logout.php

@@ -1,6 +1,7 @@
 <?php
 
 use MingTsay\Akanyan\App;
+use MingTsay\Akanyan\Redis;
 
 require_once __DIR__ . '/../vendor/autoload.php';