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                ## 驗證類 驗證器的主要作用是用來檢測用戶輸入的數據,是否滿足了自己設定的規則,主要用來做數據的驗證 * * * * * ## 驗證器的開發 (1)文件地址:```application\index\validate\Cate.php``` (2)位置如圖所示: ![](https://box.kancloud.cn/b37fa736ff6583edf6540183468100d7_293x342.png) (3)代碼如下: ``` <?php namespace app\index\validate; use think\Validate; class Cate extends Validate { /** * 驗證規則 * @var array */ protected $rule=[ 'catename'=>'unique:cate|require|max:25', ]; /** * 錯誤提示信息 * @var array */ protected $message=[ 'catename.require'=>'欄目名稱不得為空!', 'catename.unique'=>'欄目名稱不得重復!', ]; /** * 驗證場景 * @var array */ protected $scene=[ 'add'=>['catename'], 'edit'=>['catename'], ]; } ``` >[info] 至此,驗證器開發完畢
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