Laravel 5 date_format验证不验证

Question

这是输入值：FIRST_TIME_ARRIVAL_DATE_AT_DAW : 2016-21-5 17:21:35这里是验证规则：

public static $createRules = [
      'FIRST_TIME_ARRIVAL_DATE_AT_DAW' => 'date_format:"Y-m-d H:i:s"',
];

它不验证，它返回：

{"CELLS_EXPIRY_DATE":["The FIRST TIME ARRIVAL DATE AT DAW does not match the format Y-m-d H:i:s."]

编辑:下面是我的控制器的样子：

$validator = Validator::make($request->all(),BatteryAssets::$createRules);
        if ($validator->fails()) {
            return ['success' => 0, 'data' => 'Input error','errors' => $validator->messages()->toJson()];
        }

因此，$validator->messages()->toJson()返回验证错误

Answer 1

format Y-m-d H:i:s need be 2016-21-05 17:21:35

Answer 2

将'date_format:"Y-m-d H:i:s"'更改为'date_format:Y-m-d H:i:s'