    public static function attach($hooks_name, $func)
    {
        $hooks = self::$hooks;
        $hooks[$hooks_name][] = $func;
        self::$hooks = $hooks;

        return self::$hooks;
    }
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.