Fix 13 PHPStan errors

diff --git a/src/Database/Database.php b/src/Database/Database.php
index 14416a1899ee13525205cd42e3039b5d4cae02fa..6f42756302eecc6a879eb7a8a5e2d7ddb9a4424e 100644 (file)
--- a/src/Database/Database.php
+++ b/src/Database/Database.php
@@ -60,7 +60,7 @@ class Database
        protected $syslock = null;
 
        protected $server_info = '';
-       /** @var PDO|mysqli */
+       /** @var PDO|mysqli|null */
        protected $connection;
        protected $driver = '';
        protected $pdo_emulate_prepares = false;
@@ -253,7 +253,7 @@ class Database
        /**
         * Return the database object.
         *
-        * @return PDO|mysqli
+        * @return PDO|mysqli|null
         */
        public function getConnection()
        {