'require|length:3,30|unique:user', ]; /** * 提示消息 */ protected $message = [ 'username.require' => 'Username can not be empty', 'username.length' => 'Username must be 3 to 30 characters', 'username.unique' => 'Username already exist', ]; /** * 验证场景 */ protected $scene = [ 'add' => [], 'edit' => [], ]; }