'require', 'server' => 'require|different:target_server', 'target_server' => 'require', ]; protected $message = [ 'password.require' => 'gm密码不能为空', 'server.require' => '请选择合并大区', 'server.different' => '合并区与目标区不能相同', 'target_server.require' => '请选择目标大区', ]; }