    public static function val($vars)
    {
        $val = $_SESSION['gxsess']['val'];
        foreach ($val as $k => $v) {
            # code...
            switch ($k) {
                case $vars:
                    return $v;
                    break;

                default:
                    //echo "no value";
                    break;
            }
        }
    }
The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.