Improve persistent sessions

index.php

@@ -88,30 +88,23 @@ if (
 /**
  * Persistent (stay logged in)
  */
-if (isset($_COOKIE[COOKIE_PERSISTENT]) && $database) {
+if (isset($_COOKIE[COOKIE_PERSISTENT]) && $database && !$_SESSION['user']->isLoggedIn()) {
-    $table_sessions_exists = $database->tableExists('sessions');
+    $sessions = $database
+    ->query(
+        'SELECT *
+           FROM `sessions`
+          WHERE `session` = "' . $_COOKIE[COOKIE_PERSISTENT] . '";'
+    )
+    ->fetchAll();
 
-    if ($table_sessions_exists) {
+    if (false !== $sessions) {
-        $sessions = $database
+        foreach ($sessions as $session) {
-        ->query(
+            $expires = strtotime($session['expires']);
-            'SELECT *
-               FROM `sessions`
-              WHERE `session` = "' . $_COOKIE[COOKIE_PERSISTENT] . '";'
-        )
-        ->fetchAll();
 
-        if (false !== $sessions) {
+            if (time() < $expires) {
-            $_SESSION['user'] = new User();
+                $_SESSION['user'] = User::getFromID($session['user']);
 
-            foreach ($sessions as $session) {
+                break;
-                /** Column sessions.expires was added in v0.7.1. */
-                $expires = strtotime($session['expires'] ?? date('Y-m-d H:i:s', time() + 1));
-
-                if (time() < $expires) {
-                    $_SESSION['user'] = User::getFromID($session['user']);
-
-                    break;
-                }
             }
         }
     }