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                加入我們要對客戶端傳遞過來的參數`id`做校驗,校驗規則是`必須是正整數`,編碼如下: ~~~ class IDMustBePositiveInteger extends BaseValidate { protected $rule = [ 'id' => 'require|isPositiveInt' ]; protected $message = [ 'id' => 'id必須是正整數' ]; } ~~~ 其中,`isPositiveInt`是基類中的方法,具體請看上一小節,寫在基類中是便于以后其他子類中可以直接調用。 * * * * * 在`Controller`層中,比方我們要刪除某id的數據,可以這么使用 ~~~ public function delSomenID() { (new IDMustBePositiveInteger())->goCheck(); ........................... } ~~~ 只有客戶端傳遞過來的id符合要求才會繼續執行后面代碼,否則拋出異常。
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