fix php 8 warning

diff --git a/DB/mysql.php b/DB/mysql.php
index e5be9d5..e0501af 100644 (file)
--- a/DB/mysql.php
+++ b/DB/mysql.php
@@ -784,7 +784,7 @@ class DB_mysql extends DB_common
     /**
      * @deprecated  Deprecated in release 1.6.0
      */
-    function quote($str)
+    function quote($str = null)
     {
         return $this->quoteSmart($str);
     }